Patent ID: 6451699
Filing Date: 2002-09-17
Classification: B24B,H01L

Abstract:
An apparatus for planarizing a wafer surface of a semiconductor wafer having an elevated portion extending therefrom, comprising:a fluid flow surface spaced apart from said wafer surface so that (i) a chamber is defined between said wafer surface and said fluid flow surface, and (ii) said elevated portion of said semiconductor wafer is positioned in said chamber; a flow generator for generating a flow of fluid which is advanced (i) through said chamber, and (ii) into contact with said elevated portion of said semiconductor wafer; a first side wall extending from said fluid flow surface; a second side wall extending from said fluid flow surface, wherein said first side wall is positioned adjacent to said second side wall so that (i) said fluid flow surface is interposed between said first side wall and said second side wall, and (ii) said chamber is defined by said wafer surface, said fluid flow surface, said first side wall, and said second side wall; a turntable which supports said semiconductor wafer; and a motor for rotating said turntable in relation to said fluid flow surface.