Patent ID: 7241408
Filing Date: 2007-07-10
Classification: B24B,B29C,B32B,Y10T

Abstract:
1. A method of fabricating a polishing pad having a detection window thereon, comprising: providing a transparent thermosetting plastic part and a mold with a cavity, wherein the transparent thermosetting plastic part is not completely hardened and the profile of a side surface of the transparent thermosetting plastic part is an uneven surface selected from a group consisting of a serrated shape, a wavy shape and a toothed shape; placing the transparent thermosetting plastic part into the cavity of the mold; injecting a high molecular weight foam into the cavity of the mold, wherein the high molecular weight foam and the transparent thermosetting plastic part become completely hardened at the same time; and performing demolding to remove the mold, so as to obtain the polishing pad with the detection window.