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Title: Sol-gel process for the manufacture of high power switches

Patent ·
OSTI ID:1326800
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According to one embodiment, a photoconductive semiconductor switch includes a structure of nanopowder of a high band gap material, where the nanopowder is optically transparent, and where the nanopowder has a physical characteristic of formation from a sol-gel process. According to another embodiment, a method includes mixing a sol-gel precursor compound, a hydroxy benzene and an aldehyde in a solvent thereby creating a mixture, causing the mixture to gel thereby forming a wet gel, drying the wet gel to form a nanopowder, and applying a thermal treatment to form a SiC nanopowder.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,455,366
Application Number:
13/843,863
OSTI ID:
1326800
Resource Relation:
Patent File Date: 2013 Mar 15
Country of Publication:
United States
Language:
English

References (14)

Metal redistribution by rapid thermal processing patent January 1988
Photoconductive switch with multiple layers patent February 2001
Photo-conductive switch having an improved semiconductor structure patent June 2001
Nanoparticles, methods of making, and applications using same patent December 2010
Method of forming a passivated densified nanoparticle thin film on a substrate patent December 2010
Optically initiated silicon carbide high voltage switch patent February 2011
Junction formation on wafer substrates using group IV nanoparticles patent April 2011
Gas separation membrane system and method of making thereof using nanoscale metal material patent June 2011
Optically-initiated silicon carbide high voltage switch patent February 2012
Method for controlled growth of silicon carbide and structures produced by same patent February 2013
Microcrystalline silicon film, manufacturing method thereof, semiconductor device, and manufacturing method thereof patent November 2014
Transparent ceramic photo-optical semiconductor high power switches patent January 2016
Transparent Conductors Incorporating Additives And Related Manufacturing Methods patent-application January 2013
Low temperature sintering and elongated grain growth of 6H-SiC powder with AlB 2 and C additives journal February 1999

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Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY