发明名称 |
Apparatus, backing plate, backing film and method for chemical mechanical polishing |
摘要 |
A polishing apparatus has a guide (5) to be pressed against a polishing cloth (7) when polishing an object (1). Within the guide, a ring (3) is arranged between a backing plate (4) and a backing film (2). When the guide and polishing cloth are rotated to rub with each other, force of the periphery of the object of pressing the polishing cloth drops. The ring prevents such a force drop, thereby equalizing polishing rates over a surface of the object. Also provided is a polishing method applied to the polishing apparatus. |
申请公布号 |
US6419558(B2) |
申请公布日期 |
2002.07.16 |
申请号 |
US20010886157 |
申请日期 |
2001.06.22 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
WATANABE TOMOHARU;KATO NOBUHIRO |
分类号 |
B24B37/00;B24B37/005;B24B37/04;B24B37/30;B24B41/06;H01L21/304;(IPC1-7):B24B1/00 |
主分类号 |
B24B37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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