Phosphosilicate glass

{{Short description|Type of glass commonly used in semiconductor device fabrication}}

{{refimprove |date= September 2015}}

Phosphosilicate glass, commonly referred to by the acronym PSG, is a silicate glass commonly used in semiconductor device fabrication for intermetal layers, i.e., insulating layers deposited between succeedingly higher metal or conducting layers, due to its effect in gettering alkali ions. Another common type of phosphosilicate glass is borophosphosilicate glass (BPSG).

Soda-lime phosphosilicate glasses also form the basis for bioactive glasses (e.g. Bioglass), a family of materials which chemically convert to mineralised bone (hydroxy-carbonate-apatite) in physiological fluid.

Bismuth doped phosphosilicate glasses are being explored for use as the active gain medium in fiber lasers for fiber-optic communication.{{cite web|author=Evgeny Dianov|date=16 September 2015|title=Fiber for Fiber Lasers: Bismuth-doped optical fibers: Advances in an active laser media|url=http://www.laserfocusworld.com/articles/print/volume-51/issue-09/features/fiber-for-fiber-lasers-bismuth-doped-optical-fibers-advances-in-an-active-laser-media.html|access-date=24 September 2015|website=Laser Focus World}}