The whole process is it: I received the call from the company after I submit the resume. They schedule the on-site interview directly. They comes with different people from different group. First person ask about inverter and then NAND gate, and how to size them to make rise time and fall time equally. Then ask about the verilog question. Second person draw a pics with four different circuit about the circuit and asked when the clock comes in what the output will be. And then ask about the passgate flip-flop. The third one asked C programming and he gave me a test sheet to write up.