Metal mask base, metal mask and method for producing metal mask

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11706968
APP PUB NO 20210091312A1
SERIAL NO

17100769

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A metal mask substrate includes a metal obverse surface configured such that a resist is placed on the obverse surface. The obverse surface has a three-dimensional surface roughness Sa of less than or equal to 0.11 μm. The obverse surface also has a three-dimensional surface roughness Sz of less than or equal to 3.17 μm.

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Patent Owner(s)

  • TOPPAN PRINTING CO LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujito, Daisei Tokyo, JP 7 60
Nishi, Takehiro Tokyo, JP 10 70
Nishitsuji, Kiyoaki Tokyo, JP 15 89

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