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:
Dec. 05, 2000

Filed:

Apr. 13, 1998
Applicant:
Inventors:

Robert Alan Hamm, Staten Island, NY (US);

Rose Fasano Kopf, Green Brook, NJ (US);

Robert William Ryan, Piscataway, NJ (US);

Assignee:

Lucent Technologies Inc., Murray Hill, NJ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438706 ; 438708 ; 438717 ; 438723 ; 438725 ;
Abstract

The specification describes a trilevel resist technique for defining metallization patterns by lift-off. The trilevel resist comprises two standard photoresist levels separated by a thin silicon oxide layer with approximate composition SiO.sub.2.


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