All Questions
Tagged with semiconductor-process-technology semiconductors
9
questions
14
votes
6
answers
7k
views
Why are microprocessors made using silicon and not germanium? [closed]
I heard that microprocessors are usually made using silicon, yet germanium has a better conductive state.
Why isn't germanium not chosen instead, taking to account that better conductors provide ...
- 151
1
vote
2
answers
62
views
How accurate are internal terminators on chips with high speed differential inputs?
I'm aware that due to process variation, some analog parameters of semiconductor devices can vary; sometimes quite a lot. (E.g. the SST3904 transistor specifies a DC current gain somewhere between 100 ...
- 27.5k
4
votes
2
answers
840
views
Why are drain and source not actually perfectly symmetric?
In textbook treatments, one has that the source and drain of a MOSFET are completely symmetrical and therefore interchangeable -- the distinction is only made by which is at a higher voltage in the ...
- 1,161
3
votes
4
answers
235
views
How does one manufacture a P-N junction?
When I read a physics textbook about a P-N junction, it will tell me that you connect a P-doped semiconductor to an N-doped semiconductor, and you form a depletion region.
From what I know about ...
- 185
2
votes
1
answer
136
views
Ambiguity of the "intrinsic" layer in a PIN diode
I'm having trouble understanding the fundamental makeup of large PIN diodes, specifically those used in radiation detection devices. For example, high purity germanium (HPGe) detectors are often ...
- 133
2
votes
1
answer
173
views
What is the current state of the art design rule for SiC VLSI? Technological impediments to making a SiC microcontroller for a Venus lander at 460 °C?
A sub-discussion below Is there any demonstrated or even proposed technology that can sterilize a spacecraft with 100% certainty and yet leave it electronically functional? in Space Exploration SE ...
- 3,439
5
votes
1
answer
620
views
Is there any specific application for an indirect band gap semiconductor?
I know that direct band gap semiconductors are very attractive for optical emission, and even though indirect band gap are used as well, I keep wondering: is there any technology that specifically ...
- 289
8
votes
1
answer
420
views
How is the asymmetry of a Schottky diode obtained?
A Schottky diode is constructed with two metal conductors bonded to a doped semiconductor. One of the metal-semiconductor junctions is a Schottky contact, and the other metal-semiconductor junction is ...
- 25.3k
2
votes
1
answer
2k
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Difference between Logic Chip and Memory Chip front-end manufacturing process?
I understand that memory chips like DRAM Chips require a little different set of Front-end setup than logics chips. However, I am not finding anywhere how the actual manufacturing steps differ, ...
