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.:

US 9171988 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 27, 2015

Filed:

Oct. 07, 2013
Applicant:

Lawrence Livermore National Security, Llc, Livermore, CA (US);

Inventor:

George J Caporaso, Livermore, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/78 (2006.01); H01L 31/16 (2006.01); H01L 31/09 (2006.01);
U.S. Cl.
CPC ...
H01L 31/16 (2013.01); H01L 31/09 (2013.01); Y10T 29/49105 (2015.01);
Abstract

A photoconductive switch is formed of a substrate that has a central portion of SiC or other photoconductive material and an outer portion of cvd-diamond or other suitable material surrounding the central portion. Conducting electrodes are formed on opposed sides of the substrate, with the electrodes extending beyond the central portion and the edges of the electrodes lying over the outer portion. Thus any high electric fields produced at the edges of the electrodes lie outside of and do not affect the central portion, which is the active switching element. Light is transmitted through the outer portion to the central portion to actuate the switch.


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