Patent ID: 6541399
Filing Date: 2003-04-01
Classification: C23C,H01L

Abstract:
A method for monitoring wafer surface temperature during the deposition of a layer of sub-atmospheric tetra-ethyl-ortho-silicate-ozone BPSG (SABPSG), comprising the steps of:providing a substrate; providing a substrate processing tool for deposition of a layer of SABPSG, said substrate processing having been provided with a substrate heater and a-substrate cover plate, said substrate heater having a first spacing to said substrate, said substrate cover plate having a second spacing the said substrate; positioning said substrate inside said substrate processing; providing a temperature and first processing conditions to said substrate processing for deposition of a layer of SABPSG; depositing a layer of SABPSG; monitoring deposition rate of the deposited layer of SABPSG across the surface of said substrate, said deposition rate having a target deposition rate; and adjusting said deposition rate of the deposited layer of SABPSG.