Assertion: point contact diode | /r/HasProperty | soldered to a metal base
Facets:
value: by radio-frequency heating
type: CAUSE
Source sentences:
text: It consists of an N-type germanium or silicon wafer about 12.5 mm square by 0.5 mm thick, one face of which is soldered to a metal base by radio-frequency heating and the other face has a phosphor bronze or tung­sten spring pressed against it.