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Multilevel metallization process using polishing 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01L-021/02
출원번호 US-0290652 (1994-08-15)
발명자 / 주소
  • Krishnan Ajay (11411 Research Blvd. #1123 Austin TX 78759) Kumar Nalin (12116 Scribe Dr. Austin TX 78727)
인용정보 피인용 횟수 : 76  인용 특허 : 0

초록

A maskless process for forming a protected metal feature in a planar insulating layer of a substrate is disclosed. A first barrier material is disposed in a recess in an insulating layer, a conductive metal is disposed on the first barrier material such that the entire metal feature is positioned wi

대표청구항

A method of forming a protected metal feature in a substrate, comprising the steps of: providing a substrate having an insulating layer with a top surface and a recess in and extending below the top surface; depositing a first barrier material in the recess; masklessly depositing a metal feature on

이 특허를 인용한 특허 (76)

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  71. Sinha,Nishant; Chopra,Dinesh, Slurry for use in polishing semiconductor device conductive structures that include copper and tungsten and polishing methods.
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