Title:
PROCESS FOR PRODUCING METAL PLATE FOR METAL MASK, AND METAL MASK
Document Type and Number:
WIPO Patent Application WO/2007/043166
Kind Code:
A1
Abstract:
This invention provides a process for producing a metal plate for a metal mask,
comprising a first step of providing a metal plate, a second step of forming a plurality
of holes in the metal plate by drilling holes one by one in the metal plate while
varying the relative position between a drilling mechanism and the metal plate
in such a state that, in a drilling apparatus provided with a drilling mechanism
comprising a ding mold and a punching mold, the metal plate is disposed between
the ding mold and the punching mold, and a third step of polishing for deburring
on the ding mold-side face in the metal plate. According to the above constitution,
holes having a straight wall face can be formed even in relatively thick metal
plates for use in metal plates for metal masks. Further, the need to prepare a photomask
can be eliminated in the production of a new metal plate for a metal mask by providing
a ding mold and a punching mold corresponding to a predetermined hole diameter,
and, thus, the throughput time of the metal plate for a metal mask can be reduced.
Inventors:
KATO KAZUHIKO (JP)
Application Number:
PCT/JP2005/018686
Publication Date:
April 19, 2007
Filing Date:
October 11, 2005
Export Citation:
Assignee:
BEAC CO LTD (JP)
KATO KAZUHIKO (JP)
KATO KAZUHIKO (JP)
International Classes:
B21D28/04; B21D28/24; B21D28/34
Foreign References:
JP2001341097A | 2001-12-11 | |||
JP2005152901A | 2005-06-16 | |||
JPH0739959A | 1995-02-10 | |||
JP2002273531A | 2002-09-25 | |||
JPH09141599A | 1997-06-03 | |||
JP2005046860A | 2005-02-24 | |||
JPH05169152A | 1993-07-09 |
Attorney, Agent or Firm:
MATSUO, Nobutaka (9862-60 Ochiai, Fujimi-mach, Suwa-gun Nagano 14, JP)
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