发明名称 研磨パッド
摘要 The purpose of the present invention is to provide a laminated polishing pad that can be flatly bonded to a polishing platen even if it is large in size. This laminated polishing pad, comprising a polishing layer and a support layer with an adhesive member interposed therebetween, wherein the polishing layer contains 0.5 to 5% by weight of a hydrophilic substance; the support layer is a layer obtained by integrally molding a cushion layer and a resin film having a thermal dimensional change rate of 1.3 to 12.6%; the laminated polishing pad has a concavely warped form in the polishing layer side; and the laminated polishing pad has an average warp amount of 3 to 50 mm at the peripheral edge of the pad.
申请公布号 JP5759888(B2) 申请公布日期 2015.08.05
申请号 JP20110288599 申请日期 2011.12.28
申请人 東洋ゴム工業株式会社 发明人 数野 淳
分类号 B24B37/22;H01L21/304 主分类号 B24B37/22
代理机构 代理人
主权项
地址