Here's another source that disagrees (BTL = Bell Telephone Laboratories): "In spite of its secondary role as a semiconductor supplier, the course of semiconduc

Here's another source that disagrees (BTL = Bell Telephone Laboratories): "In spite of its secondary role as a semiconductor supplier, the course of semiconductor research was shaped by the scientific and engineering achievements at BTL during the 1950s. While most of the semiconductor industry concentrated on manufacturing germanium transistors and diodes during this decade, BTL spent most of its research dollars on silicon devices... Of the ten major events instrumental in the demise of germanium as the preeminent starting material, seven originated at BTL while the other three were derived from BTL research activities. "[0] [0]: https://ethw.org/w/images/3/3a/Seidenberg%2C_1997.pdf https://ethw.org/w/images/3/3a/Seidenberg%2C_1997.pdf