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.:

US 7640656 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 05, 2010

Filed:

Aug. 16, 2007
Applicant:

Jau-shyong Chen, Chang Hua, TW;

Inventor:

Jau-Shyong Chen, Chang Hua, TW;

Assignee:

SDI Corporation, Chang Hua, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05K 3/10 (2006.01); H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for manufacturing a pre-molding leadframe strip with compact components is disclosed. The method forms a leadframe strip with an array of component regions, each component region including two metal parts for using as a chip-attached portion, a wire-bonded portion and two external electrical connection conductors. Next, the leadframe strip is plated with a metal layer having high conductivity and die bonding adhesion. Finally, a pre-molded structure on each of the component regions is formed to surround all the other portions of the leadframe strip with an exception of only the two external electrical connection conductors through a multiplicity of pre-molding processes, each pre-molding process molding the leadframe strip at an interval of one or more than one component regions.


Find Patent Forward Citations

Chen, Jau-Shyong. (2010). Method for manufacturing a pre-molding leadframe strip with compact components (U.S. Patent No. 7640656). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7640656

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

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