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. 12, 2010
Filed:
Mar. 04, 2008
Applicants:
Chin-fa Wang, Hsinchu, TW;
Wan-jung Hsieh, Hsinchu, TW;
Yu-mei Hsu, Hsinchu, TW;
Inventors:
Assignee:
Powertech Technology Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lead frame with downset baffle paddles and a semiconductor package utilizing the same are revealed. The lead frame primarily comprises a plurality of leads formed on a first plane, a baffle paddle formed on a second plane in parallel, and an internal tie bar formed between the first plane and the second plane. The internal tie bar has at least two or more windings such as 'S' shaped to flexibly connect the baffle paddle to an adjacent one of the leads. Therefore, the internal tie bar can reduce the shifting and twisting of the connected lead during the formation of the downset of the baffle paddle.