题目内容

For a MOS, a frequency with a value on the order of 1MHz is a low frequency.

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The C-V curve of a MOS capacitor with a p-type substrate at high frequency will ______when there is the fixed positive oxide charge.

A. Shift to the positive gate voltage direction
B. Shift to the negative gate voltage direction
C. Smear out
D. remain the same

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For a MOS at high frequency, the inversion layer charge will not respond to a differential change in capacitor voltage.

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The depletion-type MOSFET devices are ___________

A. The creation of the inversion layer charge
B. The creation of the accumulation layer charge
C. A channel already exists at threshold gate voltage
D. A channel already exists at zero gate voltage

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Two basic frequency limitation factors in MOSFET are ________

A. Surface states
B. Fixed charge in oxide layers
Channel transit time
D. Gate or capacitance charging time

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