The first transistor was made using germanium rather than silicon.
Sources
- Silicon is still King and it is proving difficult to topple it - IEEE Future Directions (cmte.ieee.org)
- https://www.nobelprize.org/prizes/physics/1956/summary/ (nobelprize.org)
- https://www.computerhistory.org/revolution/digital-logic/12/273 (computerhistory.org)
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