What does TTV mean in silicon wafer production?
TTV, of course, the smaller the better. TTV is a measure of the quality of the silicon wafer is a very important indicator of process control, steel wire inspection, roundness is exceeded, the life of the guide wheel is up, the fixture is a problem, etc..
Thickness variation of TTV: wafer. Generally speaking, the thickness of silicon wafer has no effect on the quality of silicon wafer. The only thing that really works in a silicon chip is a thin layer of silicon, and the rest is supported
TTV is "total thickness variation" acronym or abbreviation, meaning total thickness variation, total thickness deviation.There is a method to measure the consistency of the thickness of silicon wafer, which is called the total thickness deviation (TTV)
