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Patent Searching and Data


Title:
PROCESS FOR PRODUCING METAL PLATE FOR METAL MASK, AND METAL MASK
Document Type and Number:
WIPO Patent Application WO2007043166
Kind Code:
A9
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:
May 31, 2007
Filing Date:
October 11, 2005
Export Citation:
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Assignee:
BEAC CO LTD (JP)
KATO KAZUHIKO (JP)
International Classes:
B21D28/04; B21D28/24; B21D28/34
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