IP Library Granted Patent US 6,491,569
Granted Patent Utility
US 6,491,569 · Confirmation No. 1241

METHOD AND APPARATUS FOR USING OPTICAL REFLECTION DATA TO OBTAIN A CONTINUOUS PREDICTIVE SIGNAL DURING CMP

⬇ PDF
Code Description Pages PDF
2001-04-19 TRNA Transmittal of New Application 1 View
2001-04-19 SPEC Specification 18 View
2001-04-19 CLM Claims 4 View
2001-04-19 ABST Abstract 1 View
2001-04-19 DRW Drawings-only black and white line drawings 5 View
2001-04-19 OATH Oath or Declaration filed 8 View
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Quick Facts
Patent No.
US 6,491,569
App. No.
09/838,980
Filed
2001-04-19
Granted
2002-12-10
Pub. No.
US20020155788A1
Art Unit
3723
PTA
-44 days