Drying method of polyimide paste and manufacturing method of solar cell having high photoelectric conversion efficiency

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United States of America Patent

PATENT NO 11742439
APP PUB NO 20200303570A1
SERIAL NO

16759467

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Abstract

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A drying method of a polyimide paste which can maintain a printing shape while maintaining productivity includes an organic solvent and a polyimide resin dissolved in the organic solvent, and which becomes cured polyimide by being cured as a result of being dried and heated, the drying method including a step of applying the polyimide paste to a surface of a base material, a step of applying a solvent including a polar material to a surface of the base material at least at a portion where the polyimide paste is applied, and a step of, after applying the solvent including the polar material, drying the polyimide paste and the solvent including the polar material.

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Patent Owner(s)

  • SHIN-ETSU CHEMICAL CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashigami, Hiroshi Annaka, JP 47 46
Ohtsuka, Hiroyuki Karuizawa-machi, JP 59 995
Watabe, Takenori Annaka, JP 73 332

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