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:
Mar. 02, 1999

Filed:

Dec. 20, 1996
Applicant:
Inventors:

Larry C Leighton, Santa Cruz, CA (US);

Thomas W Moller, Gilroy, CA (US);

Assignee:

Ericsson, Inc., Morgan Hill, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257732 ; 257664 ; 257727 ; 257728 ; 257785 ; 257676 ;
Abstract

A semiconductor die is attached to a transistor package by a plurality of resilient clamping members, which are bonded at one end to a top surface of the semiconductor die and at another end to a stable surface, such as an emitter, collector, or base lead frame, of the transistor package. The shape and composition of the clamping members provides a resilient force that causes a bottom surface of the die to make and maintain substantially uniform and constant contact with the die attach area of the transistor package, e.g., a mounting flange or non-conductive substrate. The clamping members are preferably conductive and can conduct current from respective transistor cell locations on the die to the respective lead frames to which the clamping members are bonded.


Find Patent Forward Citations

Leighton, Larry. (1999). Direct contact die attach (U.S. Patent No. 5877555). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5877555

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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