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.

Date of Patent:
Jun. 19, 2001

Filed:

Jun. 02, 1998
Applicant:
Inventors:

Y. Mohammed Kasem, Santa Clara, CA (US);

Anthony C. Tsui, Saratoga, CA (US);

Lixiong Luo, San Jose, CA (US);

Yueh-Se Ho, Sunnyvale, CA (US);

Assignee:

Siliconix Incorporated, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/3495 ;
U.S. Cl.
CPC ...
H01L 2/3495 ;
Abstract

An improved semiconductor device is disclosed. In one embodiment, the semiconductor device includes a semiconductor chip with contact areas on the top or bottom surface. A first lead assembly, formed from a semi-rigid sheet of conductive material, has a lead assembly contact attached to one of the contact areas of the semiconductor chip. The first lead assembly also has at least one lead connected to and extending from the lead assembly contact. A second lead assembly, also formed from a semi-rigid sheet of conductive material, has a lead assembly contact attached to another one of the contact areas of the semiconductor chip. The second lead assembly also has at least one lead connected to and extending from the lead assembly contact. An encapsulant encloses the semiconductor chip, the lead assembly contact of the first lead assembly and the lead assembly contact of the second lead assembly. The semiconductor device has low electrical and thermal resistance contributions from the package due to the direct connection of the lead assemblies to the chip. The semiconductor device may be formed as either a leaded package or a leadless chip carrier package.


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