Low resistivity silicon carbide

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6939821
APP PUB NO 20030036471A1
SERIAL NO

10164238

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An opaque, low resistivity silicon carbide and a method of making the opaque, low resistivity silicon carbide. The opaque, low resistivity silicon carbide is doped with a sufficient amount of nitrogen to provide the desired properties of the silicon carbide. The opaque, low resistivity silicon carbide is a free-standing bulk material that may be machined to form furniture used for holding semi-conductor wafers during processing of the wafers. The opaque, low resistivity silicon carbide is opaque at wavelengths of light where semi-conductor wafers are processed. Such opaqueness provides for improved semi-conductor wafer manufacturing. Edge rings fashioned from the opaque, low resistivity silicon carbide can be employed in RTP chambers.

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Patent Owner(s)

  • SHIPLEY COMPANY, L.L.C.;TOKAI CARBON CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goela, Jitendra S Andover, MA 40 798
Pickering, Michael A Dracut, MA 34 543

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