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1 vote

Electron holes and negatively charged particles

Yes. Holes behave like positively charged particles.
John Doty's user avatar
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1 vote

Orientaion Flat on Semiconductor Wafer

Orientation Flat is usually formed by grinding one side at the boule level. XRD measurments are used to check crystal orientation. Certain semiconductor devices (edge emitting lasers in particular, ...
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1 vote

How does one manufacture a P-N junction?

Modern devices rely on epitaxy, both in Silicon and in III-V materials (GaAs, InP, InAs, GaSb, including GaN, SiC). As you listed, ingots are cut into substrates with certain doping type. Then, to ...
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1 vote
Accepted

Bipolar Junction Transistor operating modes

1.) Definition of saturation: The voltage drop across the collector resistor (caused by the collector current Ic) must be large enough to make Vb>Vc. That means: The base-collector-junction now is ...
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2 votes

Why are microprocessors made using silicon and not germanium?

None of these answers are correct: A native oxide is not necessary, since 28nm, HKMG transistors have used HfO as the main dielectric. GAA-FET’s use epitaxial growth, so the wafer material itself ...
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0 votes

Why are microprocessors made using silicon and not germanium?

Silicon vs germanium in IGBT's. Follow the money: Which has a lower cost of goods sold - silicon. Silicon wins. Mechanically: Which has a greater Strong's modulus of plasticity - silicon. Mechanically:...
Line Item's user avatar
25 votes

Why are microprocessors made using silicon and not germanium?

If a material is well conductive, that makes it a terrible choice for logic. Otherwise we'd see logic made of Copper. What you actually need is material that can be switched very well between ...
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11 votes

Why are microprocessors made using silicon and not germanium?

The Germanium vs. Silicon Wafers – Why Silicon Is Preferred page from Wafer World Inc contains the following three advantaged for Silicon: More Abundant Supply: Because of its abundant supply, ...
Chester Gillon's user avatar
28 votes

Why are microprocessors made using silicon and not germanium?

The most important special property of Si is that its oxide is an unusually useful material. Mechanically robust, chemically inert, electrically insulating, easily deposited, etchable, ...
John Doty's user avatar
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17 votes

Why are microprocessors made using silicon and not germanium?

Modern microprocessors produce a lot of heat. The maximum temperature a germanium semiconductor will work at is 70 degrees C. Can you imagine the cooling problem for a modern computer if you had to ...
RoyC's user avatar
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