Question

What is body effect? Consider the following n-channel MOSFET process: Substrate

doping NA = 1016 cm-3

, gate oxide thickness tox = 500 Å, and intrinsic carrier

concentration ni= 1.45×1010 cm-3

. Use εsi = 11.7εo and εox = 3.97εo for the dielectric

coefficients of silicon and silicon-dioxide, respectively. Find the threshold voltage

VTH0.
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Answer 1

Answer:

Body effect refers to the change in the transistor threshold voltage (VT) resulting from a voltage difference between the transistor source and body.Because the voltage difference between the source and body affects the VT, the body can be thought of as a second gate that helps determine how the transistor turns on.