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5 MOS Field-Effect Transistors (MOSFETs)

5 MOS Field-Effect Transistors (MOSFETs). Section : Device Structure and iD for vGS changing from V by +10 mV and Physical Operation by 10 mV. Comment. An NMOS transistor is fabricated in a m CMOS process with L = and W = m. The process technology is specified to have tox = nm, n = 400 cm2 /V s, and Vtn = V. (a) Find Cox , k n , and kn . (b) Find the overdrive voltage VOV and the mini- I. mum value of VDS required to operate the transis- tor in saturation at a current ID = 100 A. What gate-to-source voltage is required? +. (c) If vDS is very small, what values of VOV and VGS are required to operate the MOSFET as a VDS =VGS. 2-k resistance? If VGS is doubled, what rDS . results? If VGS is reduced, at what value does rDS.

5 MOS Field-Effect Transistors (MOSFETs) Section 5.1: Device Structure and Physical Operation 5.1 An NMOS transistor is fabricated in a 0.13-µm CMOS process with L = 1.5Lmin and W = 1.3 µm. The process technology is specified to have tox =2.7nm, μn =400cm2/V·s, and Vtn =0.4V. (a) Find Cox, kn,andkn. (b) Find the overdrive voltage VOV and ...

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