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. 19, 2002
Filed:
Aug. 11, 2000
Shin-Hua Chao, Kaohsiung, TW;
Kuan-Neng Liao, Kaohsiung, TW;
Yao-Hsin Feng, Hualien, TW;
Hou-Chang Kuo, Kaohsiung, TW;
Advanced Semiconductor Engineering, Inc., Kaohsiung, TW;
Abstract
A heat-spread substrate consisting of a metal heat spreader and a substrate is disclosed. The metal heat spreader has a surface with a cavity, which is adapted for supporting a die. Such surface further includes a ground ring arranged at the periphery of the cavity; a substrate-supporting surface surrounding the periphery of the ground ring; a plurality of first ground pads arranged at the periphery of the substrate-supporting surface; and a plurality of second ground pads arranged on the substrate-supporting surface and protruding it. The substrate is provided on the substrate-supporting surface having a plurality of through holes. The through holes corresponds to the first ground pad so as to make it be located therein, respectively. The substrate further includes a plurality of mounting pads and a plurality of ball pads, in which the mounting pads are close to the cavity, and the first ground pad, the second ground pads and the ball pads are formed in the form of ball grid array and are coplanar roughly.