Patent ID: 6849542
Filing Date: 2005-02-01
Classification: B24B,B24D,H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising: a step for forming a first conductive film on an aperture of an insulation film provided on a substrate and on the insulation film surface; a step for forming a second conductive film on the first conductive film; and a step for grinding the portion of the second conductive film and the first conductive film by use of a grindstone with reserving the first conductive film and the second conductive film in the aperture residually, wherein the grindstone comprises abrasive that is bonded together with resin and contains pores, and wherein the grindstone is provided with a plurality of coaxially arranged polygonal segments that are smaller than the substrate, and the segments are arranged so that an inner-side segment is smaller than an outer-side segment.