Patent ID: 7306508
Filing Date: 2007-12-11
Classification: B24B,B28D,H01L,Y02P

Abstract:
1. A multi-wire saw for cutting a silicon ingot while supplying a slurry containing abrasive grains and an alkali or a mixed acid to a wire traveling between a plurality of rollers, comprising: a slurry supply mechanism having an holding portion for holding the slurry and a temperature control mechanism for keeping the temperature of the slurry constant and adapted to supply the slurry to the wire as the wire passes through the holding portion which is provided on an upstream side of a site where the silicon ingot is cut; and a surface constituting the holding portion is provided with a passage hole allowing the wire to pass therethrough, wherein a surface constituting the holding portion has an openable member provided with a cutout portion, and when the member is closed, the cutout portion forms the passage hole.