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Title:
SINGLE-CRYSTAL DIAMOND AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/210934
Kind Code:
A1
Abstract:
Provided is a single-crystal diamond wherein: the half width of an X-ray diffraction rocking curve is 20 seconds or less, the half width of the X-ray diffraction rocking curve being measured using CuKα rays in X-ray diffraction by means of a double-crystal method in which a diamond crystal is used as a first crystal, with a (0004) plane parallel arrangement; the half width of a peak at the Raman shift of 1332 cm-1 to 1333 cm-1 in the Raman spectrum is 2.0 cm-1 or less; the etch pit density is 10000/cm2 or less, the etch pit density being measured by means of an etching test; and the nitrogen content in terms of the number of atoms is more than 0.1 ppm and at most 50 ppm.

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Inventors:
ZUO YIKANG (JP)
LEE JIN HWA (JP)
NISHIBAYASHI YOSHIKI (JP)
TERAMOTO MINORI (JP)
KOBAYASHI YUTAKA (JP)
SUMIYA HITOSHI (JP)
Application Number:
PCT/JP2022/016170
Publication Date:
October 06, 2022
Filing Date:
March 30, 2022
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C01B32/26; C30B29/04; C30B11/00
Foreign References:
JP2014515000A2014-06-26
JP2009518273A2009-05-07
JP2012530677A2012-12-06
JP2012515079A2012-07-05
JP2022520278A2022-03-29
JP2021061207A2021-04-15
JPH07116494A1995-05-09
JPH07148426A1995-06-13
JPH09165295A1997-06-24
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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