Seed selection and growth methods for reduced-crack group III nitride bulk crystals

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9909230
SERIAL NO

15004464

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In one instance, the invention provides a method of growing bulk crystal of group III nitride using a seed crystal selected by (a) measuring x-ray rocking curves of a seed crystal at more than one point, (b) quantifying the peak widths of the measured x-ray rocking curves, and (c) evaluating the distribution of the quantified peak widths. The invention also includes the method of selecting a seed crystal for growing bulk crystal of group III nitride.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SIXPOINT MATERIALS INC37 INDUSTRIAL WAY UNIT 106 BUELLTON CA 93427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Tadao Santa Barbara, US 93 1210
Key, Daryl La Canada, US 5 21
Letts, Edward Buellton, US 36 340

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 4 Citation Count
  • G01N Class
  • 40.30 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges28583658330822943412011104601 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +01000200030004000250500750125015001750225025002750325035003750

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 6, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 6, 2029