The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Oct. 30, 2018
Nagase Chemtex Corporation, Osaka, JP;
NAGASE CHEMTEX CORPORATION, Osaka, JP;
Abstract
A manufacturing method of a mounting structure, the method including: a step of preparing a mounting member including a first circuit member and a plurality of second circuit members placed on the first circuit member via bumps, the mounting member having a space between the first circuit member and the second circuit member; a step of preparing a sheet having a space maintaining layer; a disposing step of disposing the sheet on the mounting member such that the space maintaining layer faces the second circuit members; and a sealing step of pressing the sheet against the first circuit member and heating the sheet, to seal the second circuit members so as to maintain the space, and to cure the sheet. The bumps are solder bumps. The space maintaining layer after curing has a glass transition temperature of higher than 125° C., and a coefficient of thermal expansion at 125° C. or lower of 20 ppm/K or less.