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. 12, 2002
Filed:
Jan. 02, 2002
Applicant:
Inventors:
Youichi Kawata, Higashiyamato, JP;
Kouji Koizumi, Hinode-machi, JP;
Michiaki Sugiyama, Tokyo, JP;
Atsushi Fujishima, Kodaira, JP;
Yasuyuki Nakajima, Akishima, JP;
Takatoshi Hagiwara, Iruma, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/160 ;
U.S. Cl.
CPC ...
H01L 2/160 ;
Abstract
A semiconductor device according to this invention, wherein two semiconductor chips are sealed by one resin body using two lead frames, includes a wide part extending in the width direction of dam bars, the width of one dam bar being narrower than the width of another dam bar, and the two lead frames are joined by welding outside the resin body after sealing them with resin.