Microsemi

Microsemi was founded in February 1959{{cite web|title=Microsemi Corp.|url=http://www.otcmarkets.com/stock/MSCC/profile|website=OTC Markets|access-date=28 March 2016}} in Culver City, California{{cite web|last1=Otimer|title=Microsemi (MSCC) Strong Earnings & BTB|url=http://www.siliconinvestor.com/readmsgs.aspx?subjectid=3713&msgnum=172&batchsize=10&batchtype=Next|website=Silicon Investor|publisher=Knight Sac Media|access-date=25 March 2016}} as MicroSemiconductor. It incorporated in Delaware on September 27, 1960.{{cite web|title=Division of Corporations|url=https://icis.corp.delaware.gov/Ecorp/EntitySearch/NameSearch.aspx}} A trade catalog and price lists from this early period can be found at the Smithsonian Institution.{{cite web|title=Trade catalogs from MicroSemiconductor Corp.|url=http://collections.si.edu/search/detail/edanmdm:SILNMAHTL_31230?q=microsemiconductor&record=1&hlterm=microsemiconductor|website=CollectionsSearchCenter|publisher=Smithsonian Institution|access-date=25 March 2016}}

In March 1963, A. Feldon represented Microsemiconductor Corp in the Advisory Panel of Suppliers at the IEEE session on "Components for Miniaturized Electronic Assemblies".{{cite journal|title=12.3 Panel: The Application and Assembly of Pellet Microcomponents|journal=Proceedings of the IEEE|volume=51|issue=3|date=March 1963|page=513|doi=10.1109/proc.1963.1956|last1=Stuhlbarg|first1=S.M.}}

According to the Missiles and Rockets magazine, in 1964 "Molecular packaging of integrated circuits has been suggested by Microsemiconductor Corp. This would involve the same process the company uses for diodes it supplies to the Improved Minuteman program."{{cite news|title=missiles and rockets, the weekly of space systems engineering|url=https://archive.org/details/missilesrockets1419unse|page=61|access-date=31 March 2016|publisher=Judd & Detweiler|date=1964-02-03}}

Microsemiconductor is cited in 1965 as supplier of miniature silicon diodes that are "ideal to use as beam profile detectors or to measure depth-dose distribution of small collimated beams." by University of California's Ernest O. Lawrence Radiation Laboratory.{{cite news|last1=Raju|first1=M R|title=MINIATURE SILICON DIODE AS A RADIATION DOSEMETER|url=https://publications.lbl.gov/islandora/object/ir%3A140297|access-date=29 March 2016|publisher=The Berkeley Lab Publications System|date=9 November 1965}}

In 1966, two of the company's engineers, E.S. Resnond and M.W. Stillwell, published a Production Engineering Measures Study, on High Voltage Oscillators.{{cite book|last1=Resnond|first1=E. S.|last2=Stillwell|first2=M. W.|title=Production Engineering Measures Study, Volume I. Part I. Oscillator - High Voltage|date=1966|publisher=Defense Technical Information Center|edition=Volume I. Part I.|url=https://books.google.com/books?id=iLdcOAAACAAJ|access-date=25 March 2016}}

As of 1969, Microsemiconductor's address was still 11250 Plaza Court, Culver City, CA 90230.{{cn|date=October 2022}}
On August 13, 1969, Standard Resources Corporation, from Copiague, New York, a close-end management investment company, filed at the U.S. Securities and Exchange Commission a request to merge with Microsemiconductor.{{cite web|title=SEC News Digest, August 13, 1969|url=https://www.sec.gov/news/digest/1969/dig081369.pdf|website=www.sec.gov|publisher=Security Exchanges Commission|access-date=25 March 2016}} This request

disclosed that the major shareholders of Microsemiconductor as of May 31, 1969, were Arthur Feldon (31%), Steve Manning (31%) and Thomas C. Hall (10%). At the end of the proposed merger the company would retain the name Microsemiconductor. At the time, J.M. Kaplan's JemKap Inc owned 37.7% of the outstanding common shares of Standard, which would make him the owner of 18.9% of the surviving company. Standard Resources and Microsemiconductor merged in November 1969.{{cite web|title=SEC News Digest, June 17, 1970|url=https://www.sec.gov/news/digest/1970/dig061770.pdf|website=www.sec.gov|publisher=Security Exchanges Commission|access-date=25 March 2016}}

Source:{{cite web|title=Microsemi Announces Retirement of Board Chairman|url=http://investor.microsemi.com/releases?item=972|date=2002-12-12}}

According to the Orange County Business Journal, "In 1971, the New York operation was spun off and Philip Frey Jr. was brought on from Teledyne Inc.'s semiconductor division in Hawthorne to head Microsemiconductor. At the time, the company had annual sales of about $500,000, almost entirely to defense industry customers. In 1972, the company moved from Culver City to Santa Ana, California. Microsemi still was almost exclusively a defense business in 1987, but by then sales were close to $50 million. That same year, the company did a $35 million convertible bond offering, the proceeds of which were used to acquire about a dozen companies, most of them struggling "bargain" buys. When the acquisitions began straining profitability, Frey didn't waste a lot of time admitting his mistake. In 1989, Microsemi began selling them off. Sales, which hit a then-high of $104 million in 1989, fell to $83 million by 1991. But they've grown almost every year since and are expected by analysts to exceed $150 million for the fiscal year just ended. (1996)"

On July 1, 1982, Jemkap Inc acquired 48.6% of Microsemiconductor Class A Stock.,{{cite news|title=SEC News Diggest|url=https://www.sec.gov/news/digest/1982/dig090982.pdf|access-date=29 March 2016|issue=82–174|publisher=Securities and Exchange Commission|date=1982-09-09}} and Microsemisemiconductor acquired the Siemens Components Group in Scottsdale, Arizona.{{cite news|title=Classifieds: Siemens Corporation Components Group 8700 E. Thomas Rd. Scottsdale, Az. 85252|url=https://www.newspapers.com/newspage/117735236/|access-date=30 March 2016|publisher=Arizona republic|date=1979-02-11}}{{cite web|title=Microsemiconductor 8700 E Thomas Rd, Scottsdale, AZ 85257|url=http://www.homefacts.com/environmentalhazards/Arizona/Maricopa-County/Scottsdale/Superfund-Microsemiconductor-Azd980675433.html|website=homefacts by RealtyTrac|access-date=30 March 2016|date=1982-12-01}}

Microsemiconductor renamed itself to Microsemi, in February 1983.{{cite web|title=Microsemi Form 10-K For the fiscal year ended September 30, 2012|url=https://www.sec.gov/Archives/edgar/data/310568/000031056812000048/mscc201210k.htm|website=sec.gov|publisher=Securities and Exchange Commission|access-date=29 March 2016}}

On March 9, 1986, Microsemi, at the time a supplier of "high-performance semiconductor diodes in a variety of military, industrial and commercial products", issued 2.5 million shares of common stock. Up until this time, Jacob M Kaplan of New York owned or controlled 38.4% of the company shares, and was 94 years-old.{{cite news|title=Microsemi to Issue 2.5 Million Shares of Common|url=https://www.latimes.com/archives/la-xpm-1986-03-09-fi-18183-story.html|access-date=29 March 2016|newspaper=LA Times|date=1986-03-09}} Microsemi raised $26 million in the stock sale.{{cite news|title=Microsemi's Stock Sale Brings in $26 Million|url=https://www.latimes.com/archives/la-xpm-1986-04-06-fi-25252-story.html|access-date=30 March 2016|newspaper=LA Times|date=1986-04-06}} Jacob Merril Kaplan, who was a philanthropist, died in Manhattan, NY on July 20, 1987.{{cite news|last1=Saxon|first1=Wolfgang|title=Jacob Kaplan, Philanthropist, Is Dead|url=https://www.nytimes.com/1987/07/20/obituaries/jacob-kaplan-philanthropist-is-dead.html|access-date=30 March 2016|work=New York Times|date=1987-07-20}}

Microsemi was originally traded Over the Counter, commonly traded as MicrSm.{{cite news|title=THE NAMES BEHIND THE O-T-C SYMBOLS|url=https://www.nytimes.com/1984/02/12/business/the-names-behind-the-o-t-c-symbols.html|access-date=28 March 2016|work=New York Times|date=February 12, 1984}} On March 1, 1990, Microsemi joined the NASDAQ exchange.{{cite web|title=Microsemi Corporation (MSCC)|url=https://finance.yahoo.com/echarts?s=MSCC+Interactive#symbol=MSCC;range=my|website=Yahoo! Finance|access-date=28 March 2016}}

On March 1, 1987, Microsemi sold $35M in convertible debentures.{{cite news|last1=Muir|first1=Frederick M.|title=Bonds Offer Good Buy Into Microsemi|url=https://www.latimes.com/archives/la-xpm-1987-03-01-fi-7209-story.html|access-date=30 March 2016|newspaper=LA Times|date=1987-03-01}}

Between 1986 and 1990 Microsemi acquired over 60% of the shares of 11 companies.

In June 1991 Microsemi created two join-ventures in Taiwan for packaging in Taiwan its component dies made in Santa Ana, California.{{cite news|last1=TAKAHASHI|first1=Dean|title=Microsemi Forms 2 Joint Ventures With Taiwanese|url=https://www.latimes.com/archives/la-xpm-1991-06-04-fi-378-story.html|access-date=28 March 2016|newspaper=LA Times|date=June 4, 1991}}

Microsemi established its presence in Ireland in 1992 through the acquisition of a facility in Ennis Co. Clare. The Ennis facility's key competencies are the development, manufacturing and high reliability testing of semiconductors to meet stringent aerospace, satellite, medical and security standards.

In July 1992 Microsemi acquired Unitrode's semiconductor products division. {{clarify|date=March 2021}}

In February 1993 Microsemi's stock crashed 54%, because of a cash crunch. "Microsemi has been restructuring for several years as defense budget cuts have slowed its sales. In 1989, the company said it planned to sell or close 10 subsidiaries not related to its core business of manufacturing computer chips for use in electronics equipment ranging from military weapons to heart pacemakers. The company sold four subsidiaries, shut down one, combined two and retained three. The company took $20.5 million in write-offs during the past three years in connection with the restructuring."{{cite news|last1=Takahashi|first1=Dean|title=Microsemi Stock Takes a Nose Dive : Finances: A cash crunch and problems with a bank loan lower value of shares 54%. The company is now cutting costs.|url=https://www.latimes.com/archives/la-xpm-1993-02-24-fi-563-story.html|access-date=30 March 2016|newspaper=LA Times|date=1993-02-24}}

In April 1994 Microsemi formed a joint venture in China with Shanghai Electrical Apparatus, with 60% of the joint-venture belonging to Microsemi.{{cite news|title=Microsemi Forms Semiconductor Venture With Firm in China|url=https://www.latimes.com/archives/la-xpm-1994-04-22-fi-49204-story.html|access-date=28 March 2016|newspaper=LA Times|date=April 22, 1994}}

Linfinity, whose CEO was Jim Peterson,{{cite web|title=microsemi corp (MSCC:NASDAQ GS)|url=https://www.bloomberg.com/research/stocks/people/person.asp?personId=287824&privcapId=287798|website=Bloomberg|publisher=Bloomberg L.P|access-date=29 March 2016}} was the first Integrated Circuit company acquired by Microsemi, in 1999.

On November 30, 2000, Microsemi promoted Jim Peterson to president and CEO.{{Citation needed|date=February 2023}} Jim Peterson was previously the president of Linfinity.{{cite news|title=Microsemi Names New CEO, Reports Profitable Quarter|url=https://www.latimes.com/archives/la-xpm-2000-nov-30-fi-59337-story.html|access-date=25 March 2016|newspaper=LA Times|date=2000-11-30}}

In 2001 Microsemi relocated its headquarters from Santa Ana, California to Irvine, California.{{cite news|title=Microsemi moves headquarters|url=http://www.ocregister.com/jannorman/strong-413060-http-ocregister.html|publisher=Orange Country Register|date=2011-11-08}}

Between 2006 and 2010, Microsemi acquired a mix of space/hi-reliability focused companies (MDT, TSI, Babcock, Spectrum Microwave), defense/security focused companies (Endwave,{{cite web |url=https://www.microwavejournal.com/articles/7814-microsemi-acquires-defense-and-security-business-from-endwave |title=Microsemi Acquires Defense and Security Business from Endwave|date=April 30, 2009}} White Electronics, Arxan, Brijot, AML), and also companies focused in discrete and IC power products for commercial applications (Advanced Power Technology, PowerDsine, Nexsem), as well as communications focused companies (PowerDsine, VT Silicon, Zarlink) a programmable logic company (Actel) and an ASIC design house focused on analog mixed-signal (ASIC Advantage).

In 2011 Microsemi relocated its headquarters from Irvine, California to Aliso Viejo, California.{{cite press release |title=Microsemi Corporation Relocates Headquarters to Aliso Viejo, Calif. |url= http://investor.microsemi.com/releasedetail.cfm?ReleaseID=598730|publisher=Globe Newswire |date= August 11, 2011|access-date=2011-12-24}}

In August 2012, Microsemi marked its 20 years of operations in Ireland by naming Ennis its European headquarters. It also announced the inaugural Microsemi Scholarship in engineering at the University of Limerick. In addition, the company funded a high-profile science and aerospace engineering programme in St. Flannan's school in Ennis.{{cite news|last1=Flynn|first1=Pat|title=US firm names Co Clare plant as European headquarters|url=http://www.irishtimes.com/newspaper/ireland/2012/0808/1224321715211.html|publisher=The Irish Times|date=2012-08-08}} Microsemi works closely with the Industrial Development Authority (IDA Ireland), which is responsible for attracting and developing overseas investment in Ireland. Support from IDA Ireland was a key factor in the company's decision to invest in the region.{{cite news|title=Microsemi Marks 20 Years in Ireland and Names Ennis as its European Headquarters|url=http://www.idaireland.com/newsroom/microsemi-marks-20-years-/|access-date=29 March 2016|publisher=IDA Ireland|date=2012-08-07}}

Between 2012 and 2013 Microsemi acquired Timing companies (the timing business of Maxim Integrated Products, Symmetricom) in addition to Zarlink.

In November 2013, Jim Peterson promoted Paul Pickle to COO and president, retaining the CEO position, and accumulating the position of chairman of the board.{{cite press release|title=Microsemi Announces New Executive and Board Positions|url=http://www.prnewswire.com/news-releases/microsemi-announces-new-executive-and-board-positions-231883681.html|access-date=25 March 2016}}

In 2014 Microsemi established a design group in Cork, Ireland, through the acquisition of Mingoa,{{cite news|last1=Scouras|first1=Ismini|title=Microsemi Bolsters FPGA Stance With Mingoa Acquisition|url=http://www.eetimes.com/document.asp?doc_id=1323256|access-date=29 March 2016|publisher=EETimes|date=28 July 2014}} which is focused on advanced system-on-chip (SoC) software and solutions with an emphasis on ARM processor-centric designs.

Between 2014 and 2015, Microsemi acquired communications and data-center focused companies (Mingoa, Centellax, Vitesse, PMC-Sierra).{{Citation needed|date=February 2023}}

In March 2016, Microsemi announced the divestiture of the defense-focused business units acquired between 2009 and 2011.

{{cite web

|url=http://investor.microsemi.com/2016-03-23-Microsemi-Announces-Definitive-Agreement-to-Divest-Business-to-Mercury-Systems-Inc

|title=Microsemi Announces Definitive Agreement to Divest Business to Mercury Systems, Inc.

|access-date=2016-03-25

|date=2016-03-23

}}

In April 2016 Microsemi announced the divestiture of its Broadband Wireless Division, which was previously part of PMC-Sierra for $21 million.{{cite web|title=MaxLinear, Inc. Acquires Wireless Access Assets from Microsemi Corporation|url=http://www.maxlinear.com/maxlinear-inc-acquires-wireless-access-assets-from-microsemi-corporation/|website=Microlinear.com|date=28 April 2016 |access-date=28 April 2016}}

In October 2017, Microsemi announced the acquisition of the timing business of Vectron International from Knowles for $130 million.{{cite web|title=Microsemi to Acquire Timing Business of Vectron International from Knowles for $130 Million|url=https://www.everythingrf.com/News/details/5051-Microsemi-to-Acquire-Timing-Business-of-Vectron-International-from-Knowles-for-130-Million|website=everythingRF.com|access-date=30 October 2017}}

In March 2018, Microsemi's PolarFire FPGA was named "2017 Product of the Year" by Electronic Products China and 21ic.com.{{cite web|title=Microsemi's PolarFire FPGA Named "2017 Product of the Year" by Electronic Products China and 21ic.com|url=https://investor.microsemi.com/2018-03-22-Microsemis-PolarFire-FPGA-Named-2017-Product-of-the-Year-by-Electronic-Products-China-and-21ic-com.html|access-date=23 March 2018}}

In March 2018 Microchip Technology announced it would acquire Microsemi for approximately $10 billion.

Microsemi has been producing various electronic products, including high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs.

{{cite web

|url=http://investor.microsemi.com/2016-03-23-Microsemi-Announces-Definitive-Agreement-to-Divest-Business-to-Mercury-Systems-Inc

|title=Microsemi Announces Definitive Agreement to Divest Business to Mercury Systems, Inc.

|access-date=2016-03-25

}}{{cite web|title=Product Directory|url=http://www.microsemi.com/products/|website=Microsemi|access-date=29 March 2016}}

Microsemi has provided semiconductor solutions for numerous U.S. space programs dating back to the launch of the first Atlas rocket. Several of Microsemi's space products were used in the historic landing of the Mars Curiosity Rover in 2012.{{Cite web|url=http://www.marsdaily.com/reports/Microsemi_Space_Solutions_On_Board_Historic_Mars_Rover_Mission_999.html|title = Microsemi Space Solutions on Board Historic Mars Rover Mission}} Microsemi products were also used for mission critical applications such as launch systems, avionics, telemetry, navigation, drive control, mission computers, cameras and other instruments.

{{Div col|colwidth=22em}}

;FPGAs and SoCs

• Flash-based FPGAs and SoCs from 5K to 150KLUTs
• Space-grade FPGAs
• Space-grade Analog Front end for FPGAs

;Storage

• RAID Controllers and Adaptec SAS/SATA host adaptors
• HBA Controllers and Adaptec SAS/SATA host adaptors
• SAS/SATA Switches and Adaptec Expanders
• Flashtec NVMe Controllers
• Flashtec NVMRAM Drives
• Switchtec PCIe switches

;Ethernet and Network processors

• Ethernet Switches
• Ethernet PHYs
• Ethernet Software
• Winpath Network Processors

;Optical Products

• Optical Transport Network (OTN) products
• Optical Line Drivers

;Power over Ethernet

• PoE Injectors
• PoE Switches
• PoE PSE ICs
• PoE PD ICs

;Audio and Voice

• Timberwolf Audio processors
• SLIC

;Timing & Synchronization

• Time servers
• Atomic clocks
• Rugged Oscillators
• PLL
• Frequency synthesizers
• Precision Time Protocol Grand Masters and Software

;Power Management

• Switching and Linear Voltage regulator
• Electronic Fuses
• Ideal Solar Bypass Devices
• Space-grade Power supply

;Power Discretes and Modules

• SiC Diodes, MOSFETs and power modules
• IGBTs
• BJTs, Diodes and JFETs

;RF Transceivers

• Ultra Low Power Wearable Radio
• Implantable Radio

;WLAN RF Front End

• Power Amplifiers
• LNAs
• FEMs

;RF/Microwave Discretes

• MMICs
• PIN diodes
• Varactors
• Gunn diodes
• Gallium nitride transistors

;Circuit Protection

• Transient-voltage-suppression diodes
• Medical Surge Protection

{{Div col end}}

Source:{{cite web|title=Acquisitions|url=http://www.microsemi.com/company/acquisitions|publisher=Microsemi}}

{{Div col}}

• 2H 1982: Siemens Components Group (Scottsdale, Arizona){{cite news|title=The Jury Is Still Out Over Profitability of Microsemi's Rapid Acquisition Pace|url=https://www.latimes.com/archives/la-xpm-1987-11-15-fi-21035-story.html|access-date=28 March 2016|newspaper=LA Times|date=November 15, 1987}}
• July 1986: Bikor,{{cite news|title=Microsemi Buys Firm to Expand Customer Base|url=https://www.latimes.com/archives/la-xpm-1986-07-10-fi-22382-story.html|access-date=28 March 2016|newspaper=LA Times|date=July 10, 1986}} divested in July 1993{{cite news|title=Microsemi Sells 2 More Units in Streamlining Bid|url=https://www.latimes.com/archives/la-xpm-1993-07-02-fi-9357-story.html|newspaper=LA Times|date=July 2, 1993}}
• July 1986: RPM Enterprises{{cite news|title=Microsemi's Latest Buy Is a Santa Ana Company|url=https://www.latimes.com/archives/la-xpm-1986-07-27-fi-1761-story.html|newspaper=LA Times|date=July 27, 1986}}
• June 1987: Solitron's Rectifier Assembly Unit{{cite news|title=Microsemi Will Acquire Rectifier Assembly Unit|url=https://www.latimes.com/archives/la-xpm-1987-06-09-fi-5941-story.html|newspaper=LA Times|date=June 9, 1987}}
• July 1987: Hybrid Components Inc{{cite news|title=Microsemi Completes 6th Buyout in 2 Years|url=https://www.latimes.com/archives/la-xpm-1987-07-21-fi-5109-story.html|access-date=28 March 2016|newspaper=LA Times|date=July 21, 1987}}
• August 1987: Diodes Incorporated (20%),{{cite news|title=Microsemi to Purchase 20% Stake in Diodes Inc.|url=https://www.latimes.com/archives/la-xpm-1987-08-04-fi-1089-story.html|access-date=28 March 2016|newspaper=LA Times|date=August 4, 1987}} divested in January 1990{{cite news|title=Semiconductor Firm Sells 25% Share in Diodes Inc.|url=https://www.latimes.com/archives/la-xpm-1990-01-30-fi-1013-story.html|access-date=28 March 2016|newspaper=LA Times}}
• September 1987: Vitarel (60%){{cite news|title=Microsemi Corp. Buys 60% of Semiconductor Maker|url=https://www.latimes.com/archives/la-xpm-1987-09-18-fi-5592-story.html|access-date=28 March 2016|newspaper=LA Times|date=18 September 1987}}
• August 1987: Omni Technology,{{cite news|title=Microsemi Completes Its Acquisition of Omni|url=https://www.latimes.com/archives/la-xpm-1987-09-22-fi-9450-story.html|access-date=28 March 2016|newspaper=LA Times|date=September 22, 1987}} divested in December 1993 to Technology Marketing{{cite news|title=Microsemi Selling Omni to Technology Marketing|url=https://www.latimes.com/archives/la-xpm-1993-12-02-fi-63295-story.html|access-date=28 March 2016|newspaper=LA Times|date=December 2, 1993}}
• September 1987: Salem Scientific (a.k.a. Sertech Labs){{cite news|title=Microsemi Buys East Coast Firm for Planned Die-Processing Plant|url=https://www.latimes.com/archives/la-xpm-1987-09-10-fi-6913-story.html|access-date=28 March 2016|newspaper=LA Times|date=September 10, 1987}}
• November 1987: Coors Porcelain (product line includes silicon wafers that can be used in Diodes Inc. products. Also produces high-performance diodes used in automobiles and microwave equipment.)
• January 1988:Surface Mounted Technology (80%){{cite news|last1=Olmos|first1=David|title=Growing Microsemi Buys One Firm, Increases Its Stake in Another to 80%|url=https://www.latimes.com/archives/la-xpm-1988-01-16-fi-9166-story.html|access-date=29 March 2016|newspaper=LA Times|date=1988-01-16}}
• January 1988: General Microcircuits, divested in January 1998{{cite news|title=Microsemi to Sell General Microcircuits|url=https://www.latimes.com/archives/la-xpm-1998-jan-07-fi-5652-story.html|access-date=28 March 2016|newspaper=LA Times|date=January 16, 1998}}
• June 1989: Varo Quality Semiconductor{{cite news|last1=Olmos|first1=David|title=Science/technology|url=https://www.latimes.com/archives/la-xpm-1989-06-27-fi-4531-story.html|access-date=28 March 2016|newspaper=LA Times|date=June 17, 1989}}

• July 1992: Unitrode (semiconductor Product Division){{cite news|title=Other News|url=https://www.latimes.com/archives/la-xpm-1992-07-08-fi-1498-story.html|access-date=28 March 2016|newspaper=LA Times|date=July 8, 1992}}
• October 1996: SGS Thomson's Radio Frequency Semiconductor (High-reliability Products){{cite news|title=Microsemi to Expand|url=https://www.latimes.com/archives/la-xpm-1996-10-15-fi-54185-story.html|newspaper=LA Times|date=October 15, 1996}}
• October 1996: National Semiconductor (high reliability monolithic diode arrays)
• September 1997: PPC Products{{cite news|title=Microsemi Buys Firm|url=https://www.latimes.com/archives/la-xpm-1997-sep-12-fi-31384-story.html|access-date=28 March 2016|newspaper=LA Times|date=September 12, 1997}}
• May 1998: BKC Semiconductors,{{cite news|title=O.C.'s Microsemi Corp. to Buy BKC Semiconductors|url=https://www.latimes.com/archives/la-xpm-1998-jan-22-fi-10842-story.html|access-date=28 March 2016|newspaper=LA Times|date=22 January 1998}} shutdown in November 1999{{cite news|title=Microsemi Restructure Will Mean Massachusetts Layoffs|url=https://www.latimes.com/archives/la-xpm-1999-nov-06-fi-30571-story.html|access-date=28 March 2016|newspaper=LA Times|date=November 6, 1999}}
• January 1998: Xemod (19%){{cite news|title=Microsemi Invests in Xemod|url=https://www.latimes.com/archives/la-xpm-1998-jan-30-fi-13594-story.html|access-date=28 March 2016|newspaper=LA Times|date=January 30, 1998}}
• April 1999: Linfinity Microelectronics division of Symmetricom{{cite news|title=Microsemi Finishes Buying Linfinity|url=https://www.latimes.com/archives/la-xpm-1999-apr-16-fi-27873-story.html|access-date=28 March 2016|newspaper=LA Times|date=April 16, 1999}}
• June 1999: Narda Microwave Semiconductor{{cite news|title=Microsemi Buys Unit of Narda Microwave|url=https://www.latimes.com/archives/la-xpm-1999-jun-29-fi-51335-story.html|access-date=28 March 2016|newspaper=LA Times|date=June 29, 1999}}

• February 2000: Infinesse (HBT Business Product Group){{cite news|title=MICROSEMI ACQUIRES INFINESSE HBT UNIT|url=http://www.telecompaper.com/news/microsemi-acquires-infinesse-hbt-unit--217672|access-date=29 March 2016|publisher=Telecompaper|date=2000-05-17}}
• August 2001: New England Semiconductor{{cite news|title=Microsemi buys two firms to expand military/aero portfolio|url=http://www.eetimes.com/document.asp?doc_id=1134705|access-date=29 March 2016|publisher=EETimes|date=2001-06-12}}
• August 2001: Compensated Devices
• April 2006: Advanced Power Technology (APT){{cite news|title=Microsemi Corporation Closes Acquisition of Advanced Power Technology|url=http://investor.microsemi.com/2006-04-28-Microsemi-Corporation-Closes-Acquisition-of-Advanced-Power-Technology|access-date=29 March 2016|publisher=Microsemi|date=2006-04-28}}
• January 2007: PowerDsine Ltd{{cite news|title=Microsemi Completes Acquisition of Israel's PowerDsine|url=http://www.haaretz.com/news/microsemi-completes-acquisition-of-israel-s-powerdsine-1.209548|website=Haaretz|access-date=29 March 2016}}
• November 2007: MDT Corporation{{cite news|title=Microsemi to Acquire MDT Corporation|url=https://globenewswire.com/news-release/2007/11/28/369780/132158/en/Microsemi-to-Acquire-MDT-Corporation.html|access-date=29 March 2016|publisher=GlobeNewswire|date=2007-11-28}}
• January 2008: TSI Microelectronics{{cite news|last1=LaPedus|first1=Mark|title=Microsemi buys TSI Micro|url=http://www.eetimes.com/document.asp?doc_id=1167733|access-date=29 March 2016|publisher=EETimes|date=2008-01-08}}
• October 2008: Electro Module, Inc. and its wholly owned subsidiary, Babcock, Inc.
• April 2009: the Space Level Power Products business of Spectrum Microwave, Inc.
• April 2009: defense and security business of Endwave Corp,{{cite news|title=Microsemi Acquires Nexsem, Inc.|url=https://globenewswire.com/news-release/2009/06/08/398870/166832/en/Microsemi-Acquires-Nexsem-Inc.html|access-date=29 March 2016|publisher=GlobeNewswire|date=2009-06-08}} divested on May 2, 2016, to Mercury Systems.{{cite web|title=Mercury Systems Completes Previously Announced Acquisition of Embedded Security, RF and Microwave, and Custom Microelectronics Businesses from Microsemi Corporation|url=https://www.mrcy.com/presscenter/pressreleases/pressrelease.aspx?id=16578|website=www.mrcy.com|access-date=6 May 2016}}
• June 2009: Nexsem

• April 2010: White Electronic Designs Corp divested on May 2, 2016, to Mercury Systems.
• September 2010: VT Silicon{{cite news|last1=Mokhoff|first1=Nicolas|title=Microsemi acquires VT Silicon|url=http://www.eetimes.com/document.asp?doc_id=1264056|access-date=29 March 2016|publisher=EETimes|date=2010-09-14}}
• September 2010: Arxan Technologies, Defense Systems, Inc.,[https://web.archive.org/web/20140201223755/http://www.reuters.com/finance/stocks/companyProfile?rpc=66&symbol=MSCC.O "Profile:Microsemi Corporation (MSCC.0)"] (Reuters profile) - Retrieved 2010-07-11 divested on May 2, 2016, to Mercury Systems.
• November 2010: Actel Corp.{{cite news|last1=LaPedus|first1=Mark|title=Microsemi buys Actel for $430 million|url=http://www.eetimes.com/document.asp?doc_id=1257518|access-date=29 March 2016|publisher=EETimes|date=2010-10-04}}
• May 2011: AML Communications,{{cite news|title=Microsemi to acquire AML Communications|url=http://www.businessweek.com/ap/financialnews/D9MI5SG01.htm|archive-url=https://web.archive.org/web/20160414223358/http://www.businessweek.com/ap/financialnews/D9MI5SG01.htm|url-status=dead|archive-date=April 14, 2016|access-date=29 March 2016|agency=The Associated Press|publisher=Bloomberg Business|date=2011-04-21}} divested on May 2, 2016, to Mercury Systems.
• June 2011: Brijot Imaging Systems, Inc.{{cite news|title=Microsemi Acquires the Technology and Related Assets From Brijot Imaging Systems, Inc.|url=https://globenewswire.com/news-release/2011/07/19/451549/226833/en/Microsemi-Acquires-the-Technology-and-Related-Assets-From-Brijot-Imaging-Systems-Inc.html|access-date=29 March 2016|publisher=GlobeNewswire|date=2011-07-19}}
• July 2011: ASIC Advantage, Inc.{{cite news|title=Microsemi Acquires ASIC Advantage, Inc.|url=https://www.reuters.com/article/idUS106925+06-Jul-2011+GNW20110706|archive-url=https://web.archive.org/web/20160409214711/http://www.reuters.com/article/idUS106925+06-Jul-2011+GNW20110706|url-status=dead|archive-date=2016-04-09|access-date=29 March 2016|publisher=Reuters|date=2011-07-06}}
• October 2011: Zarlink Semiconductor, Inc.{{cite news|title=Microsemi Corporation to Acquire Zarlink Semiconductor Inc.|url=https://finance.yahoo.com/news/Microsemi-Corporation-Acquire-iw-1108397680.html|access-date=29 March 2016|publisher=Yahoo! Finance|date=2011-09-22}}
• January 2012: timing, synchronization, and synthesis business of Maxim Integrated Products{{cite news|title=Microsemi buys Maxim's telecom timing IC biz|url=http://www.eetimes.com/document.asp?doc_id=1260998|access-date=29 March 2016|publisher=EETimes|date=2012-01-19}}
• October 2013: Symmetricom, Inc.{{cite news|title=Microsemi Successfully Completes Acquisition of Symmetricom|url=http://www.design-reuse.com/news/33398/microsemi-symmetricom-acquisition.html|access-date=29 March 2016|publisher=Design & Reuse|date=2013-11-26}}
• July 2014: Mingoa{{cite news|last1=Scouras|first1=Ismini|title=Microsemi Bolsters FPGA Stance With Mingoa Acquisition|url=http://www.eetimes.com/document.asp?doc_id=1323256|access-date=29 March 2016|publisher=EETimes|date=2014-07-28}}
• September 2014: Centellax{{cite news|title=Microsemi to Acquire Centellax|url=http://investor.microsemi.com/2014-09-10-Microsemi-To-Acquire-Centellax|access-date=29 March 2016|publisher=Microsemi|date=2014-09-10}}
• March 2015: Vitesse Semiconductor Corp.{{cite news|last1=Dealbook|title=Microsemi to Acquire VItesse Semiconductor for $389 Million|url=https://www.nytimes.com/2015/03/19/business/dealbook/microsemi-to-acquire-vitesse-semiconductor-for-389-million.html?_r=0|access-date=29 March 2016|work=New York Times|date=2015-03-18}}
• November 2015: PMC-Sierra for $2.5 Billion [http://www.everythingrf.com/News/details/2030-pmc-sierra-finally-acquired-by-microsemi-for-2-5-billion]. Divested the Broadband Wireless Division to Maxlinear in April 2016.
• June 2017: Phonon{{cite web|title=Acquisitions|url=https://www.mwrf.com/technologies/components/semiconductors/article/21848450/microsemi-buys-surface-acoustic-wave-filter-manufacturer|publisher=Microwaves&RF|access-date=28 April 2025}}
• November 2017: Vectron{{cite web|title=Acquisitions|url=https://www.microsemi.com/company/acquisitions|publisher=Microsemi Corporation|access-date=15 March 2018}}

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• Internet Telephony Product of the Year Awards 2008 by TMCnet.com for PD-7000G Series of PoE Midspans{{cite web|title=2008 Internet Telephony Product of the Year Awards|url=http://www.tmcnet.com/voip/0209/2008-internet-telephony-product-of-the-year-awards.htm|website=TMCnet.com|publisher=Technology Marketing Corporation|access-date=29 March 2016}}
• TMC Labs Innovation Award 2009 for PD-9000G family of PoE Midspans{{cite news|title=Microsemi's PowerDsine PD9000G Midspan Family Wins TMC Labs 2009 Innovation Award|url=http://globenewswire.com/news-release/2009/10/13/406448/175337/en/Microsemi-s-PowerDsine-PD9000G-Midspan-Family-Wins-TMC-Labs-2009-Innovation-Award.html|access-date=29 March 2016|publisher=GlobeNewswire|date=2009-10-13}}
• SOLAR Industry Award 2010, for LX2400 IDEALSolar (Solar Bypass IC)[https://globenewswire.com/news-release/2010/09/08/428917/200766/en/Microsemi-Solar-Bypass-IC-Receives-SOLAR-Industry-Award.html SOLAR Industry Award, for LX2400 IDEALSolar]
• Best Delivery Support Award 2011, ZTE Corporation[http://www.prnewswire.com/news-releases/microsemi-earns-ztes-2011-best-delivery-support-award-137407333.html 2011 Best Delivery Support Award], ZTE, PRNewsWire
• Product of the Year Award 2011, Electronic Products, for SmartFusion (Mixed Signal FPGAs)[http://www.globenewswire.com/news-release/2011/01/21/438245/211595/en/Photo-Release-Electronic-Products-Presents-Product-of-the-Year-Award-to-Microsemi-for-SmartFusion-Intelligent-Mixed-Signal-FPGAs.html Electronic Products 2011 Product of the Year Award]
• Editor's Choice 2012, Military Embedded Systems Magazine{{cite news|title=Microsemi's TRRUST-Stor™ Solid State Drive Earns Editor's Choice Award from Military Embedded Systems Magazine|url=http://www.prnewswire.com/news-releases/microsemis-trrust-stor-solid-state-drive-earns-editors-choice-award-from-military-embedded-systems-magazine-173671901.html|access-date=29 March 2016|publisher=Microsemi|date=2012-10-11}}
• Corporate Social Responsibility Award 2013, ITsAP Award{{cite news|title=Microsemi Wins ITsAP's Corporate Social Responsibility Award in the Creation of Educational Infrastructure Category|url=http://investor.microsemi.com/2013-12-17-Microsemi-Wins-ITsAPs-Corporate-Social-Responsibility-Award-in-the-Creation-of-Educational-Infrastructure-Category|access-date=29 March 2016|publisher=Microsemi|date=2013-12-18}}
• Innovation Award 2013, EDN China for SmartFusion2{{cite news|title=Microsemi Wins EDN China's Innovation Award for its SmartFusion2 SoC FPGA|url=http://www.prnewswire.com/news-releases/microsemi-wins-edn-chinas-innovation-award-for-its-smartfusion2-soc-fpga-231718881.html|access-date=29 March 2016|publisher=Microsemi|date=2013-11-13}}
• Innovative Product/Technology 2013, OC Tech Alliance, for SmartFusion2 (SoC FPGA)[https://www.youtube.com/watch?v=b73dbv85a3A Innovative Product/Technology, OC Tech Alliance, 2013]
• CFO of the Year 2013, Business Journal and CalCPA[http://www.ocbj.com/news/2013/feb/09/taking-more-microsemi/ CFO of the Year Awards], the Business Journal and the California Society of Certified Public Accountants
• Renewable Energy Design Award 2014, Elektra Awards, Electronics Weekly, for DC-powered PoE Midspan Injector (solar powered)[http://www.elektraawards.co.uk/elektraawards2016/2014-winners Renewable Energy Design Award], Elektra Awards
• Outstanding CEO in Technology 2014, OC Tech Alliance{{cite news|title=Microsemi's James J. Peterson Wins "Outstanding CEO in Technology" Award from OC Tech Alliance|url=http://www.prnewswire.com/news-releases/microsemis-james-j-peterson-wins-outstanding-ceo-in-technology-award-from-oc-tech-alliance-278986511.html|access-date=29 March 2016|publisher=Microsemi|date=2014-10-13}}
• DesignVision Award 2014, DesignCon{{cite news|title=Microsemi's Highly Integrated IGLOO2 FPGAs Recognized with DesignVision Award at 2014 DesignCon Conference|url=http://investor.microsemi.com/2014-03-13-Microsemis-Highly-Integrated-IGLOO2-FPGAs-Recognized-with-DesignVision-Award-at-2014-DesignCon-Conference|access-date=29 March 2016|publisher=Microsemi|date=2014-03-13}}
• European Commission Innovation Award 2014, European Commission, for SOI-HITS Research Project (Smart Silicon-on-Insulator Sensing Systems Operating at High Temperature)[http://investor.microsemi.com/2015-12-17-Team-Led-by-Microsemi-Wins-European-Commissions-Innovation-Award-Competition-for-FP7-Projects European Commission Innovation Award]
• Cryptography Research DPA Logo Certification, for FPGA/Rambus[http://www.rambusblog.com/2015/08/31/security-microsemi-fpgas-awarded-rambus-cryptography-research-dpa-logo-certification/ Cryptography Research DPA Logo Certification], RamBusBlog
• Public Outstanding Technology Company 2015, OC Tech AlliancePublic Outstanding Technology Company, OC Tech Alliance
• Innovation Award for Best Telecom & Networking Product 2015, EDN China, for SimplyPHY VSC8502 (IC)[http://www.prnewswire.com/news-releases/microsemi-wins-edn-chinas-innovation-award-for-best-telecom--networking-product-300104284.html Innovation Award for Best Telecom & Networking Product], EDN China, PRNewsWire
• Innovative Product/Software Application Award 2016, ESTnet, for MiniSIM[http://www.prnewswire.com/news-releases/microsemi-wins-2016-estnet-innovative-productsoftware-application-award-300230947.html Innovative Product/Software Application Award], ESTnet, PRNewsWire
• Network Support Solutions ISCWest 2016 Award, Security Industry Association, for PDS-104GO 4-port Outdoor PoE Switch{{cite web|title=2016 Award Winners|url=http://www.iscwest.com/SIANPS/2016-Award-Winners/|website=www.iscwest.com|date=7 April 2016 |publisher=ISC|access-date=7 April 2016}}
• Favorite Analyst Semiconductor Company Award, 2016 Global Semiconductor Alliance Awards{{cite web|title=Global Semiconductor Alliance Announces 2016 Award Recipients|url=http://www.businesswire.com/news/home/20161209005002/en/Global-Semiconductor-Alliance-Announces-2016-Award-Recipients|website=Business Wire|date=9 December 2016|publisher=)--The Global Semiconductor Alliance (GSA)|access-date=9 December 2016}}
• M2M Network Equipment Technology Company of the Year 2016 by IoT Breakthrough Awards{{cite news|title=Microsemi Honored as M2M Network Equipment Technology Company of the Year by IoT Breakthrough Awards|url=http://www.prnewswire.com/news-releases/microsemi-honored-as-m2m-network-equipment-technology-company-of-the-year-by-iot-breakthrough-awards-300385809.html|access-date=5 January 2017|publisher=PRNewswire|date=5 January 2017}}
• China Electronic Market (CEM) magazine's 2016 Editor's Choice Award for the Adaptec® Series 8E RAID adapter{{cite news|title=Microsemi Wins China Electronic Market Magazine's Editor's Choice Award for its Adaptec Series 8E Adapter Solutions|url=https://investor.microsemi.com/2017-05-03-Microsemi-Wins-China-Electronic-Market-Magazines-Editors-Choice-Award-for-its-Adaptec-Series-8E-Adapter-Solutions#Closed|access-date=3 May 2017|publisher=PRNewswire|date=3 May 2017}}
• Microsemi's PolarFire FPGA named "Product of the Year" by Electronic Product Magazine for its lowest power, cost-optimized mid-range PolarFire® field programmable gate array.{{cite news|title=Microsemi's PolarFire FPGA Named "Product of the Year" by Electronic Products Magazine|url=https://investor.microsemi.com/2018-01-04-Microsemis-PolarFire-FPGA-Named-Product-of-the-Year-by-Electronic-Products-Magazine#Closed|access-date=4 January 2018|publisher=PRNewswire|date=4 January 2018}}
• Leading Lights 2018 Outstanding Components Vendor by Light Reading{{cite news|title=Leading Lights 2018: The Winners|url=http://www.lightreading.com/automation/leading-lights-2018-the-winners/d/d-id/743054?page_number=2|access-date=15 May 2018|publisher=Light Reading|date=15 May 2018}}

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In 2009 Barry Minkow, co-founder of the Fraud Discovery Institute, published a report claiming that James Peterson, Microsemi's president and CEO, had not obtained a bachelor's degree or Master of Business Administration as he had listed on his biography on STEC Inc.’s regulatory filings (as part of his board position with that company) and on a US government security clearance application. Peterson responded with a public statement saying he "categorically" denied the reports. The next day, the registrar of Brigham Young University advised that they had double-checked and had no records of Peterson ever having obtained any degrees. An independent inquiry was made on behalf of the board by the law firm Munger, Tolles & Olson, which confirmed that in fact Peterson had not earned either degree. As a penalty for misrepresenting his academic credentials, Peterson paid Microsemi a fine and forwent his 2008 bonus.{{cite news| url=https://www.bloomberg.com/apps/news?pid=newsarchive&sid=ayL4xhesbXEQ&refer=home | work=Bloomberg | title=Microsemi CEO Didn't Get Degrees, School Confirms (Update2) | date=December 4, 2008}}

In 2012, a backdoor was found in Microsemi's ProASIC3.{{cite conference |url=https://www.cl.cam.ac.uk/~sps32/ches2012-backdoor.pdf |title=Breakthrough silicon scanning discovers backdoor in military chip |date=9–12 September 2012 |location=Leuven, Belgium |first1=Sergei |last1=Skorobogatov |first2=Christopher |last2=Woods |conference=Cryptographic Hardware and Embedded Systems Workshop (CHES 2012) |doi=10.1007/978-3-642-33027-8_2 |quote=...we were able to extract the secret key to activate the backdoor. This way an attacker can disable all the security on the chip, reprogram crypto and access keys, modify low-level silicon features, access unencrypted configuration bitstream or permanently damage the device.}}

File:Microsemi Microchip Building Garden Grove California 2021.JPG) office in Garden Grove, California]]

Microsemi was headquartered in Aliso Viejo, California and had offices in California (Camarillo, Cupertino, Garden Grove, San Diego, San Jose, Santa Clara, Santa Rosa); Boulder, Colorado; Atlanta, Georgia; Beverly, Lawrence, and Lowell, Massachusetts; Allentown and Reading, Pennsylvania; Austin and Dallas, Texas; Ottawa, Canada; Macau, Shanghai and Shenzhen, China; Herlev, Denmark; Bruges, Belgium; Ennis, Ireland; Hod HaSharon, Israel; Manila and Cabuyao, Philippines; Caldicot, United Kingdom; and Hyderabad, India.{{cite web|title=Microsemi Annual Report 2015|url=http://investor.microsemi.com/download/Microsemi+Annual+Report+2015+FINAL.pdf}} This list does not include properties acquired together with PMC-Sierra.

{{Reflist|30em}}

• {{Official website|http://www.microsemi.com/}}
• {{LinkedIn page|company/microsemi}}
• [https://www.glassdoor.com/Overview/Working-at-Microsemi-EI_IE1650.11,20.htm Glassdoor page]
• {{Facebook|Microsemi}}

{{Programmable Logic}}

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