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:
Nov. 15, 1977
Filed:
Sep. 09, 1975
Applicant:
Inventors:
Christer Martinus Svensson, Goteborg, SW;
Leif Sigurd Lundkvist, Angered, SW;
Kurt Ingemar Lundstrom, Goteborg, SW;
Madurai Somanathan Shivaraman, Goteborg, SW;
Assignee:
Semiconductor Sensors, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2325 / ; 73 23 ; 324 / ; 357 23 ; 357 25 ;
Abstract
A device for the detection of hydrogen comprising a semiconductor, a metal electrode and an insulator situated between the semiconductor and the electrode. The metal electrode is made of palladium, nickel, platinum or an alloy containing at least 20% palladium by atomic weight. In one embodiment, the device is a field-effect transistor. Means are also provided for heating the device for improving its response time.