alloy-junction transistor

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alloy-junction transistor

[′a‚lȯi ¦jəŋk·shən tranz′is·tər]
(electronics)
A junction transistor made by placing pellets of a p-type impurity such as indium above and below an n-type wafer of germanium, then heating until the impurity alloys with the germanium to give a pnp transistor. Also known as fused-junction transistor.
References in periodicals archive ?
The earliest practical form was the grown junction transistor in 1950, which was followed in 1952 by the alloy junction transistor, the diffused-base transistor (1955), and the epitaxial transistor (1960).