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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.:

US 6680435 B1

PDFFull Text
Date of Patent:
Jan. 20, 2004

Filed:

Jul. 31, 2000

Electronic device and method of fabricating the same

Applicant:
Inventors:

Toshio Ogawa, Hitachinaka, JP;

Masaaki Takahashi, Hitachi, JP;

Noritaka Kamimura, Hitachinaka, JP;

Kazuji Yamada, Hitachi, JP;

Toshiaki Kaminaga, Naka-machi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Hogan & Hartson, LLP

Primary Examiner:

Dean A Reichard

Assistant Examiner:

Carmelo Oliva

Int. Cl.
CPC ...
H01L 2/328 ;
U.S. Cl.
CPC ...
H01L 2/328 ;
Abstract

An electronic device has a wiring board mounted with an electronic circuit chip. A recess or through-hole is formed in a major surface of the wiring board on which the electronic circuit chip is mounted at a position corresponding to a central portion of the electronic circuit chip. Air trapped in a space between the electronic circuit chip and the wiring board is collected in the recess or through-hole to form a void separated from the electronic circuit chip.

Find Patent Forward Citations

Ogawa, Toshio. (2004). Electronic device and method of fabricating the same (U.S. Patent No. 6680435). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6680435

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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