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. 10, 1998

Filed:

Sep. 05, 1996
Applicant:
Inventors:

Bettina A Dinkel, Wappinger Falls, NY (US);

Pei-Ing Lee, Lagrangeville, NY (US);

Ernest N Levine, Poughkeepsie, NY (US);

Assignees:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257620 ; 257508 ; 438462 ;
Abstract

An energy relieving, redundant crack stop and the method of producing the same is disclosed. The redundant pattern allows the crack propagating energy that is not absorbed by the first ring of metallization to be absorbed by a second area of metallization and also provides a greater surface area over which the crack producing energy may be spread. The redundant crack stop is produced during the metallization process along with the rest of the wiring of the chip surface and, therefore, no additional production steps are necessary to form the structure.


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