Patent ID: 6752708
Filing Date: 2004-06-22
Classification: B24B,B24D

Abstract:
A pad conditioner for a polishing pad for semiconductor substrates which comprises: a support member having a surface opposed to said polishing pad; a joining alloy layer covering the surface of said support member opposed to said polishing pad; and a group of hard abrasive grains which are embedded and supported in said joining alloy layer in a dispersed state, a part of each of said hard abrasive grains being exposed to an outside of said joining alloy layer, a layer selected from the group consisting of at least one of a metal carbide chemical reaction product and a metal nitride chemical reaction product covering surfaces of the hard abrasive grains at contact interfaces between said joining alloy and the hard abrasive grains providing a chemical reaction bond between the hard abrasive grains and the joining alloy.