Problem #2) Consider a CMOS inverter fabricated in a 0.25-umprocess for which Cox 6 fF/um2, /unCox=1

Problem #2) Consider a CMOS inverter fabricated in a 0.25-umprocess for which Cox 6 fF/um2, /unCox=110 uA/V2, upCox 30 HA/ V2, Vtn=-Vtp 0.5 V, and VD 2.5 V. The WIL ratio of QN is (0.5 um/0.25 um), and that for QP is (1.25 um/0.25 um). The gate-source and gate-drain overlap capacitances are specified to be 0.3fF/um of gate width. Further, the effective (large-signal) values of drain-body capacitances are Cdbn= 1 fF and Cdbp= 1 f F. The wiring capacitance Cw 0.3 f F Find tPHL, tPLH, and tp when the inverter is driving an identical inverter

 

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