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:
Nov. 16, 2004

Filed:

Dec. 20, 2002
Applicant:
Inventors:

Atila Mertol, Cupertino, CA (US);

Senol Pekin, San Jose, CA (US);

Assignee:

LSI Logic Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/348 ; H01L 2/352 ; H01L 2/940 ; H01L 2/144 ;
U.S. Cl.
CPC ...
H01L 2/348 ; H01L 2/352 ; H01L 2/940 ; H01L 2/144 ;
Abstract

A multi-level redistribution layer trace reduces current crowding in solder bumps of an integrated circuit package. A multi-level redistribution layer trace for an integrated circuit die includes a redistribution layer trace formed on the integrated circuit die in each of a plurality of electrically conductive layers and an I/O pad formed at a termination of the redistribution layer trace so that the I/O pad extends through each of the plurality of electrically conductive layers to form an electrical junction between the termination of the redistribution layer trace and the I/O pad in each of the plurality of electrically conductive layers. The redistribution layer trace may also be slotted to divide current flow horizontally at the electrical junction between the termination of the redistribution layer trace and the I/O pad in each of the plurality of electrically conductive layers.


Find Patent Forward Citations

Loading…