Why do we need to polish the wafer so smoothly?The final fate of the wafer is to be cut into chips (die), packaged in a dark box, with only a few pins exposed. The chip will look at the threshold, resistance, current value, and voltage value, but no one cares about its appearance. In the process, we Read More

1. Definition and function of Dummy WaferDummy Wafer is a wafer specially used to fill machine equipment during wafer manufacturing. It is usually not used in actual production and will not be sold directly as a finished product. Its main function is to meet the specific requirements or constraints Read More