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. 28, 2018
Filed:
Apr. 13, 2017
Dexerials Corporation, Tokyo, JP;
Hironobu Moriyama, Tochigi, JP;
DEXERIALS CORPORATION, Tokyo, JP;
Abstract
An underfill material enabling voidless packaging and excellent solder bonding properties, and a method for manufacturing a semiconductor device using the same are provided. An underfill material is used which contains an epoxy resin and a curing agent, and a time for a reaction rate to reach 20% at 240° C. calculated by Ozawa method using a differential scanning calorimeter is 2.0 sec or less and a time for the reaction rate to reach 60% is 3.0 sec or more. This enables voidless packaging and excellent solder connection properties.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile