Patent ID: 6992009
Filing Date: 2006-01-31
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: preparing a base comprising a semiconductor substrate having a device surface side, a p-type semiconductor layer formed on the device surface side of the semiconductor substrate, a n-type semiconductor layer which is formed on the device surface side of the semiconductor substrate and forms a p-n junction together with the p-type semiconductor layer, an insulating film which is formed above the semiconductor substrate, p-type semiconductor layer, and n-type semiconductor layer and has a plurality of openings, and a conductor formed in the openings and on the insulating film and electrically connected to the p-type semiconductor layer and n-type semiconductor layer; removing the conductor on the insulating film by performing chemical mechanical polishing by relatively moving the base and a polishing pad while supplying a slurry between the polishing pad and the base, in a state in which a surface of the polishing pad is contacted with the conductor which is placed face down, to form wirings in each of the plurality of openings; applying, to suppress light corrosion, a liquid between the polishing pad and the base, without releasing the base from the polishing pad after forming the wirings, the liquid is at least one selected from the group consisting of a first solution prepared by dissolving oxidizing gas in pure water or ultra pure water, a second solution prepared by introducing radical atoms and/or molecules into pure water or ultra pure water, and a third solution prepared by dissolving reducing gas in pure water or ultra pure water; and releasing the base from the polishing pad.