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Title:
ELECTROSTATIC CLAMPLESS HOLDER MODULE AND COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2003/049180
Kind Code:
A1
Abstract:
An electrostatic clampless holder module having an alumina electrostatic holding plate and a cooling late connected with each other, wherein the cooling plate is made of a Cu based composite material which contains Cu and Ni both having a great thermal expansion coefficient and W and Mo both having a small thermal expansion coefficient in a composition ratio suitable for providing a high thermally conductive material having almost the same thermal expansion coefficient as that of an alumina material for the electrostatic holding plate, and has been subjected to forging to an extent sufficient to prevent the penetration leak of air or the like, and is coated with a Ni, Cr or Cu thin film having corrosion resistance in water by means of metal plating, sputtering, or the like.

Inventors:
TATENO NORIAKI (JP)
MIYAJI JUN (JP)
SAGO YASUMI (JP)
IKEDA MASAYOSHI (JP)
KANEKO KAZUAKI (JP)
TAKAMURA TOMIO (JP)
HIRAYAMA TADASHI (JP)
IKEMURA YOSHIYUKI (JP)
TAMARU MASAHIKO (JP)
Application Number:
PCT/JP2002/012658
Publication Date:
June 12, 2003
Filing Date:
December 03, 2002
Export Citation:
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Assignee:
TOTO LTD (JP)
ANELVA CORP (JP)
CHOSHU INDUSTRY CO LTD (JP)
TATENO NORIAKI (JP)
MIYAJI JUN (JP)
SAGO YASUMI (JP)
IKEDA MASAYOSHI (JP)
KANEKO KAZUAKI (JP)
TAKAMURA TOMIO (JP)
HIRAYAMA TADASHI (JP)
IKEMURA YOSHIYUKI (JP)
TAMARU MASAHIKO (JP)
International Classes:
F25D1/02; F25D9/00; H01L21/00; H01L21/683; H02N13/00; (IPC1-7): H01L21/68; B21J5/00; B22F3/17; B22F3/24
Foreign References:
JP2001223261A2001-08-17
JP2000313905A2000-11-14
JPH04333265A1992-11-20
JPH08125002A1996-05-17
EP0713250A21996-05-22
JP2001164304A2001-06-19
Attorney, Agent or Firm:
Koyama, Yuu (5-7 Kojimach, Chiyoda-ku Tokyo, JP)
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