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.

Date of Patent:
Sep. 09, 2014

Filed:

Mar. 31, 2009
Applicants:

Tetsuya Fukushima, Fukaya, JP;

Takashi Kitazawa, Kumagaya, JP;

Inventors:

Tetsuya Fukushima, Fukaya, JP;

Takashi Kitazawa, Kumagaya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 23/52 (2006.01); H01L 29/40 (2006.01); H01L 23/00 (2006.01); H01L 23/495 (2006.01); H01L 21/56 (2006.01); H01L 23/31 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49541 (2013.01); H01L 2224/97 (2013.01); H01L 2924/01322 (2013.01); H01L 2924/01079 (2013.01); H01L 2924/30105 (2013.01); H01L 23/3107 (2013.01); H01L 2224/48247 (2013.01); H01L 24/97 (2013.01); H01L 2224/32245 (2013.01); H01L 24/48 (2013.01); H01L 2924/01046 (2013.01); H01L 2924/01033 (2013.01); H01L 2924/01013 (2013.01); H01L 21/568 (2013.01); H01L 2224/73265 (2013.01); H01L 2924/01005 (2013.01); H01L 2224/48091 (2013.01); H01L 2924/01029 (2013.01); H01L 2924/01082 (2013.01); H01L 2924/01078 (2013.01);
Abstract

Provided are: a circuit device demonstrating an improved connection reliability while being mounted; and a method for manufacturing the same. The circuit device of the present invention includes: an island; leads arranged around the island, each lead having a lower surface and a side surface exposed to the outside; and a semiconductor element mounted on the island and electrically connected to the leads through thin metal wires. Furthermore, the exposed end portion of the lead is formed to spread toward the outside. By forming the lead in this manner, the area where the lead comes into contact with a brazing filler material is increased, thus improving the connection strength therebetween.


Find Patent Forward Citations

Loading…