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Line 1: {{refimprove\|date=February 2011}} A '''diffusion transistor''' is a [[bipolar junction transistor]] (BJT) formed by diffusing [[dopant]]s into a [[semiconductor]] ~~[[Wafer (electronics)\|~~substrate]]. The diffusion process was developed later than the [[Alloy-junction transistor\|alloy junction]] and [[Grown-junction transistor\|grown junction]] processes for making BJTs. [[Bell Labs]] developed the first prototype diffusion transistors in 1954.<ref>[http://semiconductormuseum.com/PhotoGallery/PhotoGallery_Prototype_DiffusedBase.htm Transistor Museum, Historic Transistor Photo Gallery, '''Bell Labs Prototype Diffused Base Triode''']</ref>

Diffused junction transistor: Difference between revisions