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:
Nov. 23, 2004
Filed:
Dec. 26, 2001
Applicant:
Inventors:
Hiroki Takeuchi, Komaki, JP;
Toshifumi Kojima, Komaki, JP;
Kazushige Ohbayashi, Nagoya, JP;
Hisahito Kashima, Nagoya, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/00 ;
U.S. Cl.
CPC ...
H05K 1/00 ;
Abstract
In an embedding resin for embedding electronic parts, after a substrate in which a copper layer is formed on a cured product of the embedding resin is subjected to a pressure cooker test, the copper layer has a peeling strength of at least 588 N/m (0.6 kg/cm), wherein the conditions of the pressure cooker test are 121° C., 100% by mass humidity, 2.1 atm and 168 hours, and the measurement method of the peeling strength is according to JIS C 5012, and the width of the copper layer is 10 mm.