Method of manufacturing single crystal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9816199
SERIAL NO

14965177

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A manufacturing method of single crystal is provided with a melting process for dissolving raw material in a crucible and a pulling-up process of a single crystal from a melt by the Czochralski method. The pulling-up process includes detecting an edge line of a fusion ring, determining an approximated curve of the edge line by approximating the edge line of the fusion ring by an even function, eliminating constituent pixels of the fusion ring from the image of the fusion ring as noise, the constituent pixels being positioned on the side of the melt relative to the approximated curve and the constituent pixels of the fusion ring and a deviation between the constituent pixels and the approximated curve being a predetermined number of pixels, and calculating the center position of the single crystal from the edge line of the fusion ring from which the noise has been eliminated.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SUMCO CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Ken Tokyo, JP 28 334
Takanashi, Keiichi Tokyo, JP 37 132

Cited Art Landscape

Load Citation

Patent Citation Ranking

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 May 14, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 14, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00