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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 12368054 B1

PDFFull Text
Date of Patent:
Jul. 22, 2025

Filed:

Jan. 09, 2020

Lead frame rolling

Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Amirul Afiq Bin Hud, Melaka, MY;

Sueann Wei Fen Lim, Melaka, MY;

Adi Irwan Bin Herman, Selangor, MY;

Assignee:

TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);

Attorneys:

Yudong Kim

Frank D. Cimino

Primary Examiner:

David Chen

Int. Cl.
CPC ...
H01L 21/48 (2006.01); H01L 21/56 (2006.01); H01L 23/31 (2006.01); H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
H01L 21/4842 (2013.01); H01L 21/56 (2013.01); H01L 23/3107 (2013.01); H01L 23/49503 (2013.01); H01L 23/49548 (2013.01);
Abstract

A method includes rolling a roller with a protrusion across a lead frame to create an indent in a feature of the lead frame, attaching a die to a die attach pad of the lead frame, coupling the die with a lead, and enclosing portions of the die, the die attach pad, and portions of the lead frame feature with a molding compound. A system includes a roller with a cylindrical body and a protrusion, a chuck to engage a lead frame, and a controller to roll the roller across the lead frame to create an indent in a feature of the lead frame. An integrated circuit includes a package structure enclosing a first portion of a lead and a first portion of a die attach pad, and a rolled indent in the first portion of the lead or the die attach pad.

Find Patent Forward Citations

Bin Hud, Amirul. (2025). Lead frame rolling (U.S. Patent No. 12368054). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12368054

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

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