Hung-Chang Lin

Lin was born in Shanghai, China.{{Cite news|last=Schudel|first=Matt|date=2009-03-29|title=Hung C. 'Jimmy' Lin; U-Md. Professor, Inventor|newspaper=The Washington Post |language=en-US|url=http://www.washingtonpost.com/wp-dyn/content/article/2009/03/28/AR2009032801762.html|access-date=2020-09-10|issn=0190-8286}} He attended Shanghai Jiaotong University, China on a tennis scholarship. Lin graduated with B.S. in electrical engineering in 1941.{{Cite web|last=|first=|date=April 22, 2011|title=Jimmy Lin Endowment for Entrepreneurship to Support Innovation|url=http://www.mtech.umd.edu/muse_includes/news/news_story.php?id=5663|archive-url=|archive-date=|access-date=|website=}} In 1948 he received the M.S. degree in electrical engineering from the University of Michigan. In 1956 he received the Doctor of Electrical Engineering from the Polytechnic Institute of Brooklyn.

After graduating from Shanghai Jiaotong University, Lin worked for the Central Radio Works and Central Broadcasting Administration as an engineer. He left China in 1947 to begin his graduate work.

After he earned his master's and doctorate degrees, Lin was worked at RCA Laboratories and was one of the first scientists to work on transistor circuit development. Lin was the first inventor to incorporate p-n-p or complementary integrated circuits. He later worked for CBS and Westinghouse Electric Corporation, researching and developing electrical engineering practices.{{Cite web|title=Collection: Jimmy H.C. Lin papers {{!}} Archival Collections|url=https://archives.lib.umd.edu/repositories/2/resources/773|access-date=2020-09-10|website=archives.lib.umd.edu}}

In 1969, Lin began teaching at the University of Maryland. He worked at the university until his retirement in 1990. While a professor, Lin supervised and mentored 26 PhD students. He also worked part-time as an adjunct and visiting professor at the University of Pittsburgh and University of California, Berkeley, respectively.

Hung C. Lin held more than 60 U.S. patents. Among his inventions is the quasi-complementary (transistor) amplifier circuit,{{patent|us|2896029|"Semiconductor Amplifier Circuits" issued 21 July 1959 to Hung Chang Lin, assignor to Radio Corporation of America (filed 3 May 1955)}} which has been used in many commercial audio amplifiers. Another of his inventions is the lateral transistor which is used in linear integrated circuits and TTL digital integrated circuits. He also invented the wireless microphone.

He has published more than 170 professional papers mostly on transistors and integrated circuits.

In 1978 he was presented with the J J Ebers Award from the IEEE. In 1990, Lin was inducted into the A. James Clark School of Engineering Innovation Hall of Fame at the University of Maryland. In 2000 he was elected to be academician of Academia Sinica.

File:Grave of Jimmy Hung-Chang Lin (1919-2009).jpg]]

Lin died in Silver Spring, Maryland of lung cancer at the age of 89. He is interred at Columbia Gardens Cemetery.{{citation needed |date=October 2021}}

In 2011, his wife Anchen Lin donated to the University of Maryland School of Engineering to fund the Jimmy Lin Endowment for Entrepreneurship.{{Cite web|title=The Jimmy H. C. Lin Fund for Entrepreneurship {{!}} Department of Electrical and Computer Engineering|url=https://ece.umd.edu/give/jimmy-h-c-lin-fund|access-date=2020-09-10|website=ece.umd.edu}} The goal of the endowment was "to provide annual awards to students, staff, and faculty who transform their ideas into innovations through invention and technology commercialization."

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Category:20th-century American inventors

Category:20th-century Chinese inventors

Category:American technology writers

Category:Chinese technology writers

Category:University of Michigan College of Engineering alumni

Category:1919 births

Category:2009 deaths

Category:Polytechnic Institute of New York University alumni

Category:Chinese emigrants to the United States

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