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Apparatus and method for in-situ monitoring of chemical mechanical polishing operations 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B24B-049/00
  • B24B-051/00
출원번호 US-0605769 (1996-02-22)
발명자 / 주소
  • Birang Manoocher
  • Pyatigorsky Grigory
출원인 / 주소
  • Applied Materials, Inc.
대리인 / 주소
    Fish & Richardson
인용정보 피인용 횟수 : 254  인용 특허 : 19

초록

An in-situ method of measuring uniformity of a layer on a substrate during polishing of said layer, where the method includes the steps of directing a light beam toward the layer during polishing; monitoring an interference signal produced by the light beam reflecting off of the substrate; and compu

대표청구항

[ What is claimed is:] [1.] A substrate polishing system comprising:a platen which during processing holds a polishing pad;a polishing head which during processing holds the substrate against the polishing pad on the platen;an interferometer capable of generating a collimated light beam which during

이 특허에 인용된 특허 (19)

  1. Doan Trung T. (Boise ID) Meikle Scott (Boise ID), Chemical-mechanical polishing processes of planarizing insulating layers.
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