发明名称 |
Carrier for double-side polishing apparatus, double-side polishing apparatus using the same, and double-side polishing method |
摘要 |
A carrier for a double-side polishing apparatus, including at least: a carrier base placed between upper and lower turn tables, the carrier base having a holding hole therein, the holding hole holds the wafer sandwiched between the upper and lower turn tables. A ring-shaped resin ring disposed along an inner circumference of the holding hole, the resin ring protecting a chamfered portion by making contact with the chamfered portion of the held wafer, wherein the resin ring has a concave groove on an inner circumference thereof, upper and lower tapered surfaces are formed in the concave groove. A double-side polishing apparatus using the carrier and a double-side polishing method that can reduce the generation of taper in a polished surface and improve the flatness while suppressing the generation of an outer peripheral sag of the wafer. |
申请公布号 |
US8118646(B2) |
申请公布日期 |
2012.02.21 |
申请号 |
US200913055302 |
申请日期 |
2009.07.23 |
申请人 |
SATO KAZUYA;UENO JUNICHI;KOBAYASHI SYUICHI;KUDO HIDEO;SHIN-ETSU HANDOTAI CO., LTD. |
发明人 |
SATO KAZUYA;UENO JUNICHI;KOBAYASHI SYUICHI;KUDO HIDEO |
分类号 |
B24B1/00;B24B37/08;B24B37/27;B24B37/28;H01L21/304 |
主分类号 |
B24B1/00 |
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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