This is the standard VLSI design flow that every semiconductor company follows. The complete ASIC design flow is explained by considering each and every stage. Specification Let us assume we all are IC design engineers, So you are getting the specification from the customer say to design a full adder. For example, the customer says to design a Full adder with 2GHz or 5GHz frequency. So the specification is the first stage in any ASIC design. The specification may be the power or chip area or the chip speed. Microarchitecture design There will be a top-level design engineer in any company that decides the microarchitecture for the specification is whatever given by the customer. He will design the sample architecture which contains for example for a