Assertion: germanium | /r/ObjectUse | used in transistor
Facets:
value: from were invented in 1947
type: TEMPORAL
value: mainly
type: DEGREE
Source sentences:
text: Germanium is an important semiconductor material used in transistors and various other electronic devices.
text: Germanium is an important semiconductor, mainly used in transistors and integrated circuits.
text: Yes, germanium was the only material used in transistors from when they were invented in 1947 until 1954 when the first successful silicon transistor was made.
text: Germanium is a semi-conductor that is used in transistors and integrated circuits and is comparative to other nanoparticles currently being used in electronic applications.