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:
Mar. 25, 2003
Filed:
Feb. 29, 2000
Applicant:
Inventor:
Masahiko Kushino, Yamatotakada, JP;
Assignee:
Sharp Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/3495 ;
U.S. Cl.
CPC ...
H01L 2/3495 ;
Abstract
In a semiconductor device, an island penetrating hole, which is larger than a mounted chip, is formed on an island of a lead frame, and a heatsink is mounted on the island so as to cover the island penetrating hole. The chip is disposed on a surface of the heatsink in the island penetrating hole. The ground terminal of the chip and the island are wire-bonded to each other via GND wires. This arrangement makes it possible to reduce a heat resistance in a heat-releasing path, thereby improving a heat-releasing property. Further, the GND wires are shortened and a GND inductance is reduced. Consequently, it is possible to efficiently exert capability of the chip.