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:
Aug. 18, 2009
Filed:
Jul. 03, 2008
Chia-yu Chen, Kaohsiung, TW;
Ta-lin Pong, Kaohsiung, TW;
En-shou Chang, Budai Township, Chiayi County, TW;
I-chi Cheng, Kaohsiung, TW;
Chen-ping Su, Kaohsiung, TW;
Chia-Yu Chen, Kaohsiung, TW;
Ta-Lin Pong, Kaohsiung, TW;
En-Shou Chang, Budai Township, Chiayi County, TW;
I-Chi Cheng, Kaohsiung, TW;
Chen-Ping Su, Kaohsiung, TW;
Orient Semiconductor Electronics, Ltd., Kaohsiung, TW;
Abstract
A lead frame structure comprises a side rail, a first paddle, a second paddle, a plurality of leads, and an downset anchor bar. The first paddle is connected to the side rail via at least one first tie bar, and the second paddle is connected to the side rail via at least one-second tie bar. The first paddle and the second paddle separated from each other are used to define an area to support a chip. These leads set on the side rail expends toward to the chip supporting area. One end of the downset anchor bar is connected to the side rail, and the other end of the downset anchor bar has a protrusion portion which is between the first paddle and the second paddle and is downset from the side rail.