Production method for deposition mask and deposition mask
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United States of America Patent
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Dec 19, 2017
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app pub date -
May 15, 2015
filing date -
Nov 15, 2012
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Abstract
To provide a production method including: a first step of forming a mask member in which a resin film and a magnetic metal member, which has first through-holes and second through-holes, are brought into close contact; a second step in which a peripheral edge of the magnetic metal member is bonded to one end face of a frame; and a third step in which a portion of the film in each first through-hole is irradiated with laser light to form an opening pattern, and a portion of the film in each second through-hole is irradiated with laser light to form a mask-side alignment mark.
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