Patent ID: 6716647
Filing Date: 2004-04-06
Classification: C23C,H01L,Y10S

Abstract:
A method for creating at least two devices on a semiconductor wafer, each of the devices having a plurality of device characteristics, the method comprising the steps of:depositing a semiconductor film to a first thickness at a first location on a semiconductor wafer; depositing the semiconductor film to a second thickness at a second location on the semiconductor wafer, wherein the semiconductor film at the first location will become part of a first device, wherein the semiconductor film at the second location will become part of a second device, and wherein the first and second thicknesses are different and are expected to create differences in at least one of the plurality of device characteristics between the first and second devices; performing a plurality of semiconductor processing steps on the semiconductor film to create the first and second devices; measuring one of the plurality of device characteristics of the first device; measuring the one device characteristic of the second device; and comparing the one measured device characteristic of the first and second devices to determine an optimum thickness of the semiconductor film.