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:
Oct. 15, 2013
Filed:
Mar. 10, 2011
Takehito Tsukamoto, Tokorozawa, JP;
Susumu Maniwa, Kasukabe, JP;
Junko Toda, Kasukabe, JP;
Yasuhiro Sakai, Tamana, JP;
Takehito Tsukamoto, Tokorozawa, JP;
Susumu Maniwa, Kasukabe, JP;
Junko Toda, Kasukabe, JP;
Yasuhiro Sakai, Tamana, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A lead frame substrate, includes: a metal plate having first and second surfaces; a semiconductor element mounting section, semiconductor element electrode connection terminals, and a first outer frame section formed on the first surface; external connection terminals formed on the second surface and electrically connected with the semiconductor element electrode connection terminals; a second outer frame section formed on the second surface; and a resin layer formed on a gap between the first outer frame and the second outer frame. Each external connection terminal buried in the resin layer has at least one projection formed on a side surface thereof throughout a side lower portion of the first surface.