The first BJTs were made from germanium (Ge). Silicon (Si) types curre... - dofaq.co
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The first BJTs were made from germanium (Ge). Silicon (Si) types curre...

wikipedia - 02 Jun 2022
The first BJTs were made from germanium (Ge). Silicon (Si) types currently predominate but certain advanced microwave and high-performance versions now employ the compound semiconductor material gallium arsenide (GaAs) and the semiconductor alloy silicon-germanium (SiGe). Single element semiconductor material (Ge and Si) is described as elemental.

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