[Solved] The number of semiconductor layers in IMPATT diode is:

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Q.	The number of semiconductor layers in IMPATT diode is:
A.	two
B.	three
C.	four
D.	none of the mentioned
Answer» C. four
Explanation: impatt diode consists of 4 layers according to the construction. it consists of a p+ region and n+ layers at the two ends. in between these layers, a p type layer and an intrinsic region is sandwiched.

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