Alloy-junction transistor
(重定向自Micro alloy transistor)
The germanium alloy-junction transistor, or alloy transistor, was an early type of bipolar junction transistor, developed at General Electric and RCA in 1951 as an improvement over the earlier grown-junction transistor.
The usual construction of an alloy-junction transistor is a germanium crystal forming the base, with emitter and collector alloy beads fused on opposite sides. There were several types of improved alloy-junction transistors developed over the years that they were manufactured.