What is the threshold voltage in millivolts for an NMOS FET with a sou

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What is the threshold voltage in millivolts for an NMOS FET with a source-to-body voltage, Vsb, of 612 mV ? Assume that this MOSFET has a steep retrograde body doping profile, with a maximum depletion region thickness of Wdmax = 39 nm. Also assume that this FET has an effective oxide thickness, Toxe, of 41 angstroms, and that it's threshold voltage with Vsb = 0 V is Vt0 = 476 mV. Use: kT/q = 26 mV and ni = 1.5×10^10 /cm^3 at 300∘K, εs = 11.7, ε0X = 3.9, ε0 = 8.854×10^−14 F/cm, and q = 1.6×10^−19 C. Answer: The correct answer is: 669

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What is the threshold voltage in millivolts for an NMOS FET with a source-to-body voltage, Vsb, of

612 m V

? Assume that this MOSFET has a steep retrograde body doping profile, with a maximum depletion region thickness of Wdmax

= 39 n m

. Also assume that this FET has an effective oxide thickness, Toxe, of 41 angstroms, and that it's threshold voltage with Vsb

= 0 V

is

V t 0 = 476 m V

. Use:

k T / q = 26 m V

and

n i = 1.5 \times 10^{\land} 10 / {c m}^{\land} 3 a t 300^{\circ} K

,

ε s = 11.7, ε 0 X = 3.9, ε 0 = 8.854 \times 10^{\land} - 14 F / c m

, and

q = 1.6 \times 10^{\land} - 19 C

.

Answer:

◻

The correct answer is: 669

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