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:
Feb. 13, 2001
Filed:
Aug. 24, 1999
Po-Yao Lin, Taipei, TW;
Ching-Bai Hwang, HsinChu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An integrated circuit package has a printed circuit board, a die mounted on the printed circuit board, and a heat spreader attached to the printed circuit board to cover the die and contact with the backside of the die. The heat spreader is formed by a piece body and a plurality of supporting leads extended downward from the periphery of the piece body. The supporting leads of the heat spreader are attached to the printed circuit board by surface mounting technology. The piece body of the heat spreader abuts on the backside of the die so that heat from the die can be conducted both upward to the outer environment and downward to the printed circuit board through the heat spreader, thereby enhancing the heat dissipation efficiency.