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:
Dec. 20, 1977
Filed:
Feb. 08, 1977
Applicant:
Inventors:
Cheng-Teh Wu, Hinsdale, IL (US);
Charles M Falco, Woodridge, IL (US);
Robert T Kampwirth, Darien, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ; G01R / ;
U.S. Cl.
CPC ...
2041 / ; 29599 ; 324248 ;
Abstract
An improved superconducting quantum interference device is made by sputtering a thin film of an alloy of three parts niobium to one part tin in a pattern comprising a closed loop with a narrow region, depositing a thin film of a radiation shield such as copper over the niobium-tin, scribing a narrow line in the copper over the narrow region, exposing the structure at the scribed line to radiation and removing the deposited copper.