A CMOS inverter with Vpp=5V is designed such that (W/L)n=10 and (W/L)p=20. Assume that Vtn=0.7, Vtp=-0.6, Kn'=100 uA/V^2, Kp'=-60 uA/V^2, and the load capacitance is 100 fF.
1) Use the Iav model to find tpHL, tpLH, tr(10%-90%), and t(90%-10%).
2) Use the constant current source model to find tpHL, tpLH, tr(10%-90%), tf(90%-10%), tr, and tf.