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.:
Date of Patent:
Jun. 09, 1998
Filed:
Dec. 29, 1992
Applicant:
Inventors:
Hideki Sawada, Kyoto, JP;
Hiromi Ogata, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; H01L / ;
U.S. Cl.
CPC ...
428209 ; 428210 ; 428457 ; 428458 ; 438462 ; 438926 ;
Abstract
A narrow dummy pattern made of aluminum is formed between an identification area of a semiconductor chip and a dicing line to prevent film peeling in a dicing operation from reaching the identification area.