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. 09, 2010
Filed:
Dec. 04, 2008
Hyo Soo Lee, Daejeon, KR;
Sung Eun Park, Daejeon, KR;
Hyo Soo Lee, Daejeon, KR;
Sung Eun Park, Daejeon, KR;
Samsung Electro-Mechanics Co., Ltd., Kyunggi-Do, KR;
Abstract
A ball grid array (BGA) package having a half-etched bonding pad and a cut plating line and a method of fabricating the same. In the BGA package, the plating line is cut to form a predetermined uneven bonding pad using half-etching, thereby increasing the contact area between the bonding pad and a solder ball. The BGA package includes a first external layer having a first circuit pattern and a wire bonding pad pattern wherein a chip is connected to a wire bonding pad using wire bonding. A second external layer includes a second circuit pattern, a cut plating line pattern, and a half-etched uneven solder ball pad pattern. In the second external layer, another chip is mounted on a solder ball pad. An insulating layer having a through hole interposed between the first and second external layers and electrically connects the first and second external layers therethrough.