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. 20, 2018
Filed:
Jul. 08, 2016
Lawrence Livermore National Security, Llc, Livermore, CA (US);
Lars Voss, Livermore, CA (US);
Mihail Bora, Livermore, CA (US);
George Caporaso, Livermore, CA (US);
Adam Conway, Livermore, CA (US);
Hoang T. Nguyen, Livermore, CA (US);
Rebecca J. Nikolic, Oakland, CA (US);
Stephen E. Sampayan, Manteca, CA (US);
Sangtae Park, San Ramon, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
A photoconductive switch consisting of an optically actuated photoconductive material, e.g. a wide bandgap semiconductor such as SiC, situated between opposing electrodes. The electrodes are created using various methods in order to maximize reliability by reducing resistive heating, current concentrations and filamentation, and heating and ablation due to the light source. This is primarily accomplished by the configuration of the electrical contact geometry, choice of contacts metals, annealing, ion implantation, creation of recesses within the SiC, and the use of coatings to act as encapsulants and anti-reflective layers.