METAL PLATE, DEPOSITION MASK, AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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Issued Date -
Nov 30, 2023
app pub date -
Aug 15, 2023
filing date -
Mar 14, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
Discussed is a deposition mask including a metal plate. The metal plate includes an alloy of nickel (Ni) and iron (Fe) having a plurality of through-holes. Each of the through-holes includes a first surface hole, a second surface hole opposite to the first surface hole, and a connecting part through which the first surface hole and the second surface hole communicate with each other. The metal plate includes a first outer portion, a second outer portion opposite to the first outer portion and a central portion between the first outer portion and the second outer portion. Nickel contents of the first outer portion and the second outer portion are greater than that of the central portion.
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