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:
Sep. 11, 2007
Filed:
Nov. 04, 2004
Applicants:
Sung-kwan Paek, Changwon-si, KR;
Se-chuel Park, Changwon-si, KR;
Sang-hun Lee, Changwon-si, KR;
Inventors:
Assignee:
Samsung Techwin Co., Ltd., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); B32B 15/01 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lead frame having a structure that can discharge hydrogen adsorbed during deposition and can reduce a galvanic potential difference between plating layers and a method of manufacturing the same are provided. The method includes forming a Ni plating layer formed of Ni or a Ni alloy on a base metal layer formed of a metal, forming a Pd plating layer formed of Pd or an Pd alloy on the Ni plating layer, heat-treating the Ni plating layer and the Pd plating layer, and forming a protective plating layer on the heat-treated Pd plating layer.