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:
May. 10, 1977

Filed:

Apr. 02, 1976
Applicant:
Inventor:

Frank A Lindberg, Catonsville, MD (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
156650 ; 29589 ; 2963 / ; 156247 ; 156289 ; 156656 ; 156645 ; 156665 ; 156666 ; 427177 ; 427259 ; 427282 ; 427284 ; 427287 ;
Abstract

A method for making beam leads for use in the interconnecting of electronic evices and packages. A first metal is deposited onto a substrate which has poor adhesion with the substrate. A portion of the deposited metal is then etched away leaving on said substrate deposited metal at locations where a second metal is not to adhere to the substrate. Then depositing onto said substrate and over said first deposited metal a plurality of beam leads of a second metal. Then lifting said portions of said first metal from said substrate and then etching away said first metal to provide beam leads partially attached to said substrate.


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