A MOSFET has a threshold voltage of 1 V and oxide thickness of 500 x 1 – McqOptions

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1.	A MOSFET has a threshold voltage of 1 V and oxide thickness of 500 x 10-8 [Œµr = 3.9; Œµ0 = 8.85 x 10-14 F/cm, q = 1.6 x 10-19 c]. The region under the gate is ion implanted for threshold voltage tailoring. The base and type of impant required to shift threshold voltage to - 1 V are __________ .
A.	8.6 x 1011/cm2, p-type
B.	8.6 x 1011/cm2, n-type
C.	0.86 x 109/cm2, p-type
D.	1.02 x 1012/cm2, n-type
Answer» B. 8.6 x 1011/cm2, n-type

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