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Questions tagged [semiconductors]

Most generally a class of materials that are neither insulators or conductors in their natural state, but which can be manipulated via doping or electric fields to change their conduction state. Silicon, Germanium, and GaAs are some usual materials. The term is also used to speak about devices that are made from such materials, for example, a processor from Intel can be called a semiconductor.

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1 answer
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Wrist-based Pulse Oximeter

I'm quite new to EE. I'm trying to design a wrist-based Pulse Oximeter. I have looked through a lot of literature and short listed these: PhD thesis using 6 LEDs A Single-Chip Pulsoximeter Design ...
7 votes
1 answer
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Mosfet Depletion Region?

I'm reading about Semiconductor Physics (Semiconductor - Physics and Technology), and I'm confused on one part of MOSFETs. I understand the PN junction (FINALLY!) and all the basic level stuff. But I'...
1 vote
1 answer
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Why is the width of gate the length of barrier?

In MOS capacitor, it is often said that width of gate is the length of barrier that blocks the flow from source to drain. Why is it called like that? I am getting mixed up in diagrams, and can someone ...
2 votes
1 answer
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Physics/chemistry understanding of PMOS and NMOS to form CMOS

Can anyone provide me explanations or links that provide a clear explanation of what atoms/molecules are in p-type and n-type (PMOS/NMOS) and how they interact to create actions?
1 vote
1 answer
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Any resources to understand Clamper circuit?

Can anyone please provide some resources for understanding of Clamper Circuit, i'm having a hard time in understanding it when it comes to biased circuit.
2 votes
1 answer
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What does this component do?

I'm not good at electronics, so can someone tell me what this component does?
14 votes
1 answer
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Where are the depletion PMOS transistors?

In school, I was taught about PMOS and NMOS transistors, and about enhancement- and depletion-mode transistors. Here's the short version of what I understand: Enhancement means that the channel is ...
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2 answers
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End of Life Component Source needed [closed]

Where is the best source on the web to find authorized excess and end-of-life components?

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