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Never.
All the germanium on earth was produced in supernova explosions more than 6 billion years ago.
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∙ 9y ago
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Is germanium ductile?
No, germanium is very brittle.
Was Germanium used in transistors?
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. However the use of germanium still dominated transistors until the silicon mesa transistor was made commercially available by Fairchild Semiconductor in 1958. Development of the silicon planar transistor by Fairchild Semiconductor the next year ultimately made the integrated circuit possible. While almost all transistors today are silicon, there are still uses for germanium transistors so a few types are still made.
What is a substitute for a germanium diode?
There is no exact substitute for a germanium diode, except another germanium diode. However if the only concern is to get a lower forward voltage drop than that of a silicon diode (0.7V), then a schottky barrier diode may be a suitable replacement as its forward voltage drop (<0.1V) is even lower than that of a germanium diode (0.2V).
Who developed the first transistor?
The first computer (a mechanical analog computer) is believed to have been invented circa 100BC by Archimedes.The first digital computer (a mechanical computer) was invented about 1837 by Charles Babbage.The first electronic digital computer was invented in 1937 by John Vincent Atanasoff.The first integrated circuit (a hybrid device) was invented between 1949 and 1951 independently by Werner Jacobi, Geoffrey W. A. Dummer, and several others; however the first working units had to be built with sockets for special miniaturized vacuum tubes, it was only late in the 1950s that transistors replaced the tubes in these devices.The first monolithic integrated circuit was invented in 1958 by Jack Kilby, this germanium device was not very practical to manufacture and never went beyond prototype development.The first practical monolithic integrated circuit was invented independently in 1959 by Robert Noyce, this silicon device was rapidly improved on.The first transistor (a germanium point contact transistor) was invented in 1947 by John Bardeen and Walter Brattain.The first junction transistor (a germanium grown junction transistor) was invented in 1948 by William Shockley.
Is 1N4007 OA79 silicon or germanium diode?
The entire 1N40xx series of power diodes are all silicon. The OA79 small signal diode is germanium.
Is germanium toxic?
Germanium compounds are toxic.
What does germanium do?
Germanium does no "do" anything.
Who is Germanium manufactured?
Germanium is not manufactured; its ore is mined then refined into germanium.
When was microchips invented?
The microchip was invented by Robert Noyce and Jack Kilby. A microchip is built by layers of a semiconductor material of silicon or germanium
Is germanium A Noble Gas?
Germanium is a metalloid.
Is germanium reactive?
germanium reacts naturally
What is the atomic symbol of germanium?
Germanium is Ge.
Is germanium ductile?
No, germanium is very brittle.
Is germanium a insulator of electricity?
Germanium is a semiconductor
Is germanium a conductor of electricity?
Germanium is a semiconductor.
Is germanium a element?
Yes, germanium is an element.
How many radioactive isotopes are there in germanium?
Natural germanium has only one radioactive isotope - germanium 76. 27 artificial radioisotopes of germanium are known.
