A silicon semiconductor material at T = 300 K is doped with arsenic atoms to a concentration of 2*10 ^15 cm -3 and with boron atoms to a concentration of 1.2*10 ^15 cm -3 . (a) Is the material n type or p type? (b) Determine n0 and p0 . (c) Additional boron atoms are to be added such that the hole concentration is 4*10 15 cm -3 . What concentration of boron atoms must be added and what is the new value of n0?
A silicon semiconductor material at T = 300 K is doped with arsenic atoms to a concentration of 2*10 ^15 cm -3 and with boron atoms to a concentration of 1.2*10 ^15 cm -3 . (a) Is the material n type or p type? (b) Determine n0 and p0 . (c) Additional boron atoms are to be added such that the hole concentration is 4*10 15 cm -3 . What concentration of boron atoms must be added and what is the new value of n0?
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter1: Atomic Structure
Section: Chapter Questions
Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?
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A silicon semiconductor material at T = 300 K is doped with arsenic atoms to a concentration of 2*10 ^15 cm -3 and with boron atoms to a concentration of 1.2*10 ^15 cm -3 . (a) Is the material n type or p type? (b) Determine n0 and p0 . (c) Additional boron atoms are to be added such that the hole concentration is 4*10 15 cm -3 . What concentration of boron atoms must be added and what is the new value of n0?
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