Login| Sign Up| Help| Contact|

Patent Searching and Data


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:
Click for automatic bibliography generation   Help
Assignee:
BEAC CO LTD (JP)
KATO KAZUHIKO (JP)
International Classes:
B21D28/04; B21D28/24; B21D28/34
Foreign References:
JP2001341097A2001-12-11
JP2005152901A2005-06-16
JPH0739959A1995-02-10
JP2002273531A2002-09-25
JPH09141599A1997-06-03
JP2005046860A2005-02-24
JPH05169152A1993-07-09
Attorney, Agent or Firm:
MATSUO, Nobutaka (9862-60 Ochiai, Fujimi-mach, Suwa-gun Nagano 14, JP)
Download PDF: