Title:
Fe-Ni ALLOY FOR SHADOW MASK AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2001/023631
Kind Code:
A1
Abstract:
A Fe-Ni alloy for a shadow mask which comprises, in wt %, 30 to 50 % of Ni and 0.5 % or less of Mn, the balance of the alloy being Fe and inevitable impurities, and contains, in a cross section perpendicular to the direction of rolling of an alloy thin plate immediately before etching, segregation regions (bands) having a difference in Ni concentration of 0.7 % or more in an amount of 1.0 piece or less per 100 mm in the direction of the width of the plate. The Fe-Ni alloy can be used, in a shadow mask having a fine pitch, for suppressing the occurrence of striped irregularities at a hole for passing an electron beam
Inventors:
YUKI NORIO (JP)
MIZUGUCHI TOMOJI (JP)
ITO AKIHIRO (JP)
YAMADA HITOHISA (JP)
UEDA SOU (JP)
KISHIMOTO TAKAHIRO (JP)
MIZUGUCHI TOMOJI (JP)
ITO AKIHIRO (JP)
YAMADA HITOHISA (JP)
UEDA SOU (JP)
KISHIMOTO TAKAHIRO (JP)
Application Number:
PCT/JP2000/004546
Publication Date:
April 05, 2001
Filing Date:
July 07, 2000
Export Citation:
Assignee:
NIPPON MINING CO (JP)
JAPAN STEEL WORKS LTD (JP)
YUKI NORIO (JP)
MIZUGUCHI TOMOJI (JP)
ITO AKIHIRO (JP)
YAMADA HITOHISA (JP)
UEDA SOU (JP)
KISHIMOTO TAKAHIRO (JP)
JAPAN STEEL WORKS LTD (JP)
YUKI NORIO (JP)
MIZUGUCHI TOMOJI (JP)
ITO AKIHIRO (JP)
YAMADA HITOHISA (JP)
UEDA SOU (JP)
KISHIMOTO TAKAHIRO (JP)
International Classes:
C22C30/00; C22C38/00; C22C38/04; C22C38/08; H01J9/14; H01J29/07; (IPC1-7): C22C38/00; H01J9/14; H01J29/07
Foreign References:
| JPS61113746A | 1986-05-31 | |||
| JPH108213A | 1998-01-13 | |||
| JPH1180839A | 1999-03-26 | |||
| JP2000080447A | 2000-03-21 |
Attorney, Agent or Firm:
Suenari, Mikio (Kyobashi 2-chome Chuo-ku, Tokyo, JP)
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