Title:
HIGH-RATE GROOVE PATTERN
Document Type and Number:
Japanese Patent JP2010155339
Kind Code:
A
Abstract:
To provide a polishing pad for an increase in wafer yield by increasing removal rate to increase throughput.
The polishing pad includes a center, an inner region surrounding the center, and a transition region connecting grooves from the inner region to an outer region surrounding the inner region. The outer region has multiple grooves with high-rate paths. The transition region is adjacent to the outer region and within a radius from the center defined as follows, and the inner region is to be the origin of continuous grooves extended without a break to the outer region.
COPYRIGHT: (C)2010,JPO&INPIT
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Inventors:
MULDOWNEY GREGORY P
Application Number:
JP2009288690A
Publication Date:
July 15, 2010
Filing Date:
December 21, 2009
Export Citation:
Assignee:
ROHM & HAAS ELECT MAT
International Classes:
B24B37/00; H01L21/304
Domestic Patent References:
JP2008188762A | 2008-08-21 |
Attorney, Agent or Firm:
Hajime Tsukuni
Yasuo Yanagibashi
Yasuo Yanagibashi
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