Processing liquid coating apparatus and a processing liquid coating method

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United States of America Patent

APP PUB NO 20070122559A1
SERIAL NO

10573915

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a processing liquid coating apparatus and a processing liquid coating method suitable for use in a lithography process for forming fine circuit patterns on a surface of a substrate such as a semiconductor wafer. The processing liquid coating apparatus according to the present invention includes a substrate holder (1) for holing and rotating a substrate (W), and a processing liquid supply unit (2) disposed apart from the substrate (w) held by the substrate holder (1). The processing liquid supply unit (2) has a plurality of supply ports (5, 6) for supplying a processing liquid to a plurality of portions including a central portion (C) of a surface of the substrate (W). A resist liquid or a developer is used as the processing liquid.

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Patent Owner(s)

Patent OwnerAddress
EBARA CORPORATION11-1 HANEDA ASAHI-CHO OTA-KU TOKYO 1448510

International Classification(s)

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  • 2004 Application Filing Year
  • G21H Class
  • 7 Applications Filed
  • 4 Patents Issued To-Date
  • 57.15 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200420052006200720082009201020112012201320142015201620170255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirose, Masayoshi Tokyo, JP 35 721
Shirakashi, Mitsuhiko Toyko, JP 37 615

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  • 3 Citation Count
  • G21H Class
  • 0 % this patent is cited more than
  • 18 Age
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