JOINED BODY PRODUCTION METHOD, JOINED BODY, LAMINATE PRODUCTION METHOD, LAMINATE, DEVICE PRODUCTION METHOD, DEVICE, AND COMPOSITION FOR FORMING POLYIMIDE-CONTAINING PRECURSOR PART

WIPO Patent Application WO/2023/120037

A1

The present invention provides: a joined body production method that makes it possible to obtain a joined body having a high maximum separation resisting force between two substrates when the two substrates are joined; a joined body obtained thereby; a laminate production method; a laminate obtained thereby; a device production method; a device obtained thereby; and a composition for forming a polyimide-containing precursor part.　The joined body production method comprises: a step for preparing a substrate A; a polyimide-containing precursor part formation step for forming a polyimide-containing precursor part on a surface of the substrate A that is provided with a wiring terminal; a step for preparing a substrate B; and a joining step for joining the surface of the substrate A which has the polyimide-containing precursor part and a surface of the substrate B which has a wiring terminal, wherein the difference between the percentage of cyclization of polyimide in the polyimide-containing precursor part prior to the joining step and the percentage of cyclization of polyimide in a polyimide-containing part is not less than 5%.

NAKAMURA ATSUSHI (JP)
YAMASHITA KOSUKE (JP)
TOMOTA KAZUKI (JP)

PCT/JP2022/043600

June 29, 2023

November 25, 2022

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FUJIFILM CORP (JP)

H01L25/07; C08G73/10; C08L79/08; H01L25/065; H01L25/18

WO2012005079A1	2012-01-12
WO2018173764A1	2018-09-27
WO2017209176A1	2017-12-07
WO2011004706A1	2011-01-13

TAIYO, NAKAJIMA & KATO (JP)

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