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Method and apparatus for spatially uniform electropolishing and electrolytic etching 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C25F-003/02
  • C25F-003/16
  • C25F-007/00
출원번호 US-0597225 (1990-10-15)
발명자 / 주소
  • Mayer Steven T. (Piedmont CA) Contolini Robert J. (Pleasanton CA) Bernhardt Anthony F. (Berkeley CA)
출원인 / 주소
  • The United States of America as represented by the United States Department of Energy (Washington DC 06)
인용정보 피인용 횟수 : 196  인용 특허 : 0

초록

In an electropolishing or electrolytic etching apparatus the anode is separated from the cathode to prevent bubble transport to the anode and to produce a uniform current distribution at the anode by means of a solid nonconducting anode-cathode barrier. The anode extends into the top of the barrier

대표청구항

A method for electropolishing and electrolytically etching a workpiece, comprising: electrically connecting the workpiece to a substantially flat anode of a voltage source; placing the anode and a cathode in an electrolytic solution; rotating the anode; flowing a current of sufficient density throug

이 특허를 인용한 특허 (196)

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