Patents by Inventor Daizo Horie

Daizo Horie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9518339
    Abstract: A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the wafer, wherein a plurality of circular through-holes are formed in the bottom wall in an outer peripheral region a distance of up to about ½ the radius toward the center of the bottom wall. The total opening surface area of the through-holes is 0.05 to 55% of the surface area of the bottom wall, the opening surface area of each through-hole is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: December 13, 2016
    Assignee: SUMCO Corporation
    Inventors: Masayuki Ishibashi, John F. Krueger, Takayuki Dohi, Daizo Horie, Takashi Fujikawa
  • Patent number: 9127374
    Abstract: A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the wafer, wherein a plurality of circular through-holes are formed in the bottom wall in an outer peripheral region a distance of up to about ½ the radius toward the center of the bottom wall. The total opening surface area of the through-holes is 0.05 to 55% of the surface area of the bottom wall, the opening surface area of each through-hole is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 8, 2015
    Assignee: SUMCO CORPORATION
    Inventors: Masayuki Ishibashi, John F. Krueger, Takayuki Dohi, Daizo Horie, Takashi Fujikawa
  • Publication number: 20150114282
    Abstract: A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the wafer, wherein a plurality of circular through-holes are formed in the bottom wall in an outer peripheral region a distance of up to about ½ the radius toward the center of the bottom wall. The total opening surface area of the through-holes is 0.05 to 55% of the surface area of the bottom wall, the opening surface area of each through-hole is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 30, 2015
    Applicant: SUMCO CORPORATION
    Inventors: Masayuki ISHIBASHI, John F. KRUEGER, Takayuki DOHI, Daizo HORIE, Takashi FUJIKAWA
  • Publication number: 20150107511
    Abstract: A method for growing an epitaxial film on a surface of a semiconductor wafer by mounting the wafer within a susceptor pocket and supplying source gas and carrier gas to the upper surface side of the susceptor and supplying carrier gas to the lower surface side of the susceptor. The susceptor includes a substantially circular bottom wall and a sidewall encompassing the bottom wall to form a pocket for mounting the wafer, wherein a plurality of circular through-holes are formed in the bottom wall in an outer peripheral region a distance of up to about ½ the radius toward the center of the bottom wall. The total opening surface area of the through-holes is 0.05 to 55% of the surface area of the bottom wall, the opening surface area of each through-hole is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Applicant: SUMCO CORPORATION
    Inventors: Masayuki ISHIBASHI, John F. KRUEGER, Takayuki DOHI, Daizo HORIE, Takashi FUJIKAWA
  • Patent number: 8926754
    Abstract: A susceptor for use in an epitaxial growth apparatus and method where a plurality of circular through-holes are formed in the bottom wall of a pocket in an outer peripheral region a distance of up to about ½ the radius toward the center of the circular bottom wall. The total opening surface area of these through-holes is 0.05 to 55% of the surface area of the bottom wall. The opening surface area of each of the through-holes provided at this outer peripheral region is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2. After a semiconductor wafer is mounted in the pocket, epitaxial growth is carried out while source gas and carrier gas (i.e., reactive gas) is made to flow on the upper surface side of the susceptor and carrier gas is made to flow on the lower surface side.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Mitsubishi Silicon Corporation
    Inventors: Masayuki Ishibashi, John F. Krueger, Takayuki Dohi, Daizo Horie, Takashi Fujikawa
  • Publication number: 20090314210
    Abstract: A susceptor for use in an epitaxial growth apparatus and method where a plurality of circular through-holes are formed in the bottom wall of a pocket in an outer peripheral region a distance of up to about ½ the radius toward the center of the circular bottom wall. The total opening surface area of these through-holes is 0.05 to 55% of the surface area of the bottom wall. The opening surface area of each of the through-holes provided at this outer peripheral region is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2. After a semiconductor wafer is mounted in the pocket, epitaxial growth is carried out while source gas and carrier gas (i.e., reactive gas) is made to flow on the upper surface side of the susceptor and carrier gas is made to flow on the lower surface side.
    Type: Application
    Filed: August 25, 2009
    Publication date: December 24, 2009
    Inventors: Masayuki Ishibashi, John F. Krueger, Takayuki Dohi, Daizo Horie, Takashi Fujikawa
  • Publication number: 20050000449
    Abstract: A susceptor for use in an epitaxial growth apparatus and method where a plurality of circular through-holes are formed in the bottom wall of a pocket in an outer peripheral region a distance of up to about ½ the radius toward the center of the circular bottom wall. The total opening surface area of these through-holes is 0.05 to 55% of the surface area of the bottom wall. The opening surface area of each of the through-holes provided at this outer peripheral region is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2. After a semiconductor wafer is mounted in the pocket, epitaxial growth is carried out while source gas and carrier gas (i.e., reactive gas) is made to flow on the upper surface side of the susceptor and carrier gas is made to flow on the lower surface side.
    Type: Application
    Filed: December 23, 2002
    Publication date: January 6, 2005
    Inventors: Masayuki Ishibashi, John Krueger, Takayuki Dohi, Daizo Horie, Takashi Fujikawa