Metal-Free Monolithic Epitaxial Graphene-On-Diamond PWB With Optical Waveguide

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United States of America Patent

APP PUB NO 20150301281A1
SERIAL NO

14258477

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Abstract

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According to some embodiments, an apparatus includes a circuit board made of polycrystalline diamond. The circuit board is formed by thermolysis of layers of a preceramic polymer. A plurality of tubes are formed within the circuit board and comprise a plurality of terminations at one or more surfaces of the circuit board. Each tube comprises a layer of graphene that is operable to permit each tube to conduct electrical current. Each layer of graphene is formed by thermolysis of the polycrystalline diamond circuit board at a temperature greater than or equal to 900 degrees Celsius. The apparatus also includes a plurality of optical waveguides formed within the circuit board. Each optical waveguide comprises a core of polycrystalline diamond surrounded by silicon carbide. The polycrystalline diamond is formed by thermolysis of poly(hydridocarbyne) and the silicon carbide is formed by thermolysis of poly(methylsilyne).

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LOCKHEED MARTIN CORPORATION6801 ROCKLEDGE DRIVE BETHESDA MD 20817

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  • 2014 Application Filing Year
  • B29C Class
  • 4829 Applications Filed
  • 3911 Patents Issued To-Date
  • 80.99 % Issued To-Date
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Inventor Name Address # of filed Patents Total Citations
Findley, David G Forth Worth, US 8 58

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  • 9 Citation Count
  • B29C Class
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