Consider a CMOS inverter followed by a wire of length L. Assume that in the reference design, inverter and wire contribute equally to the total propagation delay tpref. You may assume that the transistors are velocity-saturated. The wire is scaled in line with the ideal
wire scaling model. Assume initially that the wire is a local wire.a. Determine the new (total) propagation delay as a a function of tpref, assuming that technology and supply voltage scale with a factor 2. Consider only first-order effects. b. Perform the same analysis, assuming now that the wire scales a global wire, and the wire length scales inversely proportional to the technology.