Patents by Inventor Yasuji Kaneshima

Yasuji Kaneshima 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: 9142441
    Abstract: A resin sealing sheet is cut into an adhesive sheet piece having an outer shape smaller than that of a wafer. The adhesive sheet piece is joined to a supporting adhesive tape together with a ring frame. The adhesive tape between the ring frame and the adhesive sheet piece is sandwiched by upper and lower housings to form a chamber. The wafer with a support board placed on a wafer holding table within the chamber faces to the adhesive sheet piece closely. The chamber is divided into two spaces by the adhesive tape. Differential pressure generated within the two spaces causes the adhesive tape and the adhesive sheet piece to cave and bend toward the wafer, whereby the adhesive sheet piece is joined to the wafer.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: September 22, 2015
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima, Naoki Ishii
  • Publication number: 20140238207
    Abstract: A strip adhesive tape except for a portion on a notch of a wafer W is cut by contacting a cutter of a first cutting mechanism along an outer periphery of the wafer. The adhesive tape cut out into a wafer shape is reeled and collected while being separated. Thereafter, the wafer with the adhesive tape is transported to a second cutting mechanism. The second cutting mechanism cuts out the portion of the adhesive tape on the notch with a cutter having the same shape as that of the notch.
    Type: Application
    Filed: January 15, 2014
    Publication date: August 28, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yasuji Kaneshima, Naoki Ishii, Masayuki Yamamoto
  • Publication number: 20140113413
    Abstract: A resin sealing sheet is cut into an adhesive sheet piece having an outer shape smaller than that of a wafer. The adhesive sheet piece is joined to a supporting adhesive tape together with a ring frame. The adhesive tape between the ring frame and the adhesive sheet piece is sandwiched by upper and lower housings to form a chamber. The wafer with a support board placed on a wafer holding table within the chamber faces to the adhesive sheet piece closely. The chamber is divided into two spaces by the adhesive tape. Differential pressure generated within the two spaces causes the adhesive tape and the adhesive sheet piece to cave and bend toward the wafer, whereby the adhesive sheet piece is joined to the wafer.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 24, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima, Naoki Ishii
  • Patent number: 8281838
    Abstract: Tape heating means is allowed to come close to an adhesive tape for support and, in a heating state, the adhesive tape for support is stretched and tensioned with proper tension in a tape width direction and a transport direction. A heated work is bonded to an adhesive face of the tensioned adhesive tape for support, thereby supporting the work.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 9, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Yasuji Kaneshima, Masayuki Yamamoto
  • Publication number: 20120097338
    Abstract: Tape heating means is allowed to come close to an adhesive tape for support and, in a heating state, the adhesive tape for support is stretched and tensioned with proper tension in a tape width direction and a transport direction. A heated work is bonded to an adhesive face of the tensioned adhesive tape for support, thereby supporting the work.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 26, 2012
    Inventors: Yasuji Kaneshima, Masayuki Yamamoto
  • Patent number: 8109185
    Abstract: A cutter blade is cut-in by being moved towards a deep part of a notch from one open end of the notch while being moved in a forward direction with respect to an outer periphery of a wafer. Immediately before a blade edge reaches the deep part of the notch, cutting movement of the cutter blade is once stopped, reversely moved to a initial piercing position, and thereafter, the cutter blade is moved towards the deep part of the notch from the other open end of the notch while being moved in a reverse direction with respect to the outer periphery of the wafer.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: February 7, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Yamamoto, Yukitoshi Hase, Yasuji Kaneshima
  • Patent number: 8110058
    Abstract: Tape heating means is allowed to come close to an adhesive tape for support and, in a heating state, the adhesive tape for support is stretched and tensioned with proper tension in a tape width direction and a transport direction. A heated work is bonded to an adhesive face of the tensioned adhesive tape for support, thereby supporting the work.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: February 7, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Yasuji Kaneshima, Masayuki Yamamoto
  • Patent number: 8042441
    Abstract: A cutter blade movably in a radial direction of a wafer is pressed for biasing to an outer circumferential edge of the semiconductor wafer. Simultaneously, the pushing biasing force of the cutter blade is controlled constant with automatic regulation corresponding to a traveling speed variation of the cutter blade, so that effect of a centrifugal force that works at the time of rotating travel of the cutter blade may not vary a pushing biasing force of the cutter blade. As a result, a contact pressure of the cutter blade to the outer circumferential edge of the semiconductor wafer is maintained stable.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: October 25, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Yasuji Kaneshima, Takashi Nishinohama, Masayuki Yamamoto
  • Patent number: 7987886
    Abstract: A chuck table is configured with a table main body having a wafer placement part holding a wafer placed thereon, and an annular tape support frame provided outside the wafer placement part with a cutter blade traveling groove being interposed therebetween. The tape support frame has, at a top face thereof, a plurality of linear grooves arranged in parallel in a tape joining direction, a large number of linear tape support parts each located between the linear grooves, and an annular tape support part supporting the protective tape at an outer side of the cutter blade traveling groove.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: August 2, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Patent number: 7987888
    Abstract: In a method for releasing a work having an adhesive tape from a holding member which sucks and holds the work having the adhesive tape, the work having the adhesive tape is released from the holding member while supplying a gas which reduces a holding force of the holding member between the holding member and the work having the adhesive tape.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 2, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Patent number: 7896050
    Abstract: An outer edge of a protective tape projected from a semiconductor wafer is fixed and held by a tape holding section. In the condition, a part of the projected protective tape is caught and supported with a tape supporting section with a face having lower adhesive property provided in the outside of the traveling groove for the cutter. Furthermore, the part of the protective tape having the outer edge fixed and held with the tape holding section is compulsorily deformed and inserted into a depression provided between the tape holding section and the tape supporting section. Thereby, the part of the protective tape located in a traveling groove for the cutter is tensioned outward. A cutter blade is stuck into this tensioned part, and cuts the protective tape all over the peripheries of the wafer.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: March 1, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Patent number: 7849900
    Abstract: During relative and horizontal movement of a mount frame, in which a semiconductor wafer with a protective tape is supported on a ring frame through a supporting adhesive tape, and a joining member, a position of an end edge of the protective tape is detected in a non-contact manner. Based on the detection result, a joining member is stopped in the position of the end edge of the protective tape and is moved close to the semiconductor wafer to press and bring a separation tape against and into contact with an end of the protective tape. In this state, the mount frame and the joining member are relatively and horizontally moved to join the separation tape onto the protective tape. Then, the mount frame and the joining member are relatively and horizontally moved to separate the separation tape together with the protective tape from a surface of the semiconductor wafer.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: December 14, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Saburo Miyamoto, Yasuji Kaneshima, Masayuki Yamamoto
  • Publication number: 20090272496
    Abstract: A chuck table is configured with a table main body having a wafer placement part holding a wafer placed thereon, and an annular tape support frame provided outside the wafer placement part with a cutter blade traveling groove being interposed therebetween. The tape support frame has, at a top face thereof, a plurality of linear grooves arranged in parallel in a tape joining direction, a large number of linear tape support parts each located between the linear grooves, and an annular tape support part supporting the protective tape at an outer side of the cutter blade traveling groove.
    Type: Application
    Filed: April 24, 2009
    Publication date: November 5, 2009
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Publication number: 20090133551
    Abstract: A cutter blade is cut-in by being moved towards a deep part of a notch from one open end of the notch while being moved in a forward direction with respect to an outer periphery of a wafer. Immediately before a blade edge reaches the deep part of the notch, cutting movement of the cutter blade is once stopped, reversely moved to a initial piercing position, and thereafter, the cutter blade is moved towards the deep part of the notch from the other open end of the notch while being moved in a reverse direction with respect to the outer periphery of the wafer.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 28, 2009
    Inventors: Masayuki Yamamoto, Yukitoshi Hase, Yasuji Kaneshima
  • Publication number: 20090095418
    Abstract: The ultraviolet ray is applied on the surface of the protective tape from an ultraviolet ray generator. In addition, the ultraviolet ray having intensity higher than that from the ultraviolet ray generator is applied on spot on the wafer edge by an irradiation gun. In this case, the ultraviolet ray intensity and the rotation speed of the holding table are controlled by a controller so that the ultraviolet irradiation amount per unit area of the wafer edge portion becomes equal to that to the joining surface of the protective tape.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 16, 2009
    Inventors: Masayuki Yamamoto, Yukitoshi Hase, Takao Matsushita, Yasuji Kaneshima
  • Publication number: 20080230183
    Abstract: In a method for releasing a work having an adhesive tape from a holding member which sucks and holds the work having the adhesive tape, the work having the adhesive tape is released from the holding member while supplying a gas which reduces a holding force of the holding member between the holding member and the work having the adhesive tape.
    Type: Application
    Filed: June 6, 2008
    Publication date: September 25, 2008
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Publication number: 20080184855
    Abstract: An outer edge of a protective tape projected from a semiconductor wafer is fixed and held by a tape holding section. In the condition, a part of the projected protective tape is caught and supported with a tape supporting section with a face having lower adhesive property provided in the outside of the traveling groove for the cutter. Furthermore, the part of the protective tape having the outer edge fixed and held with the tape holding section is compulsorily deformed and inserted into a depression provided between the tape holding section and the tape supporting section. Thereby, the part of the protective tape located in a traveling groove for the cutter is tensioned outward.
    Type: Application
    Filed: November 9, 2007
    Publication date: August 7, 2008
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Patent number: 7406759
    Abstract: In a method for releasing a work having an adhesive tape from a holding member which sucks and holds the work having the adhesive tape, the work having the adhesive tape is released from the holding member while supplying a gas which reduces a holding force of the holding member between the holding member and the work having the adhesive tape.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: August 5, 2008
    Assignee: Nitto Denko Corporation
    Inventors: Masayuki Yamamoto, Yasuji Kaneshima
  • Publication number: 20080113492
    Abstract: A cutter blade movably in a radial direction of a wafer is pressed for biasing to an outer circumferential edge of the semiconductor wafer. Simultaneously, the pushing biasing force of the cutter blade is controlled constant with automatic regulation corresponding to a traveling speed variation of the cutter blade, so that effect of a centrifugal force that works at the time of rotating travel of the cutter blade may not vary a pushing biasing force of the cutter blade. As a result, a contact pressure of the cutter blade to the outer circumferential edge of the semiconductor wafer is maintained stable.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 15, 2008
    Inventors: Yasuji Kaneshima, Takashi Nishinohama, Masayuki Yamamoto
  • Publication number: 20070181245
    Abstract: Tape heating means is allowed to come close to an adhesive tape for support and, in a heating state, the adhesive tape for support is stretched and tensioned with proper tension in a tape width direction and a transport direction. A heated work is bonded to an adhesive face of the tensioned adhesive tape for support, thereby supporting the work.
    Type: Application
    Filed: January 30, 2007
    Publication date: August 9, 2007
    Applicant: Nitto Denko Corporation
    Inventors: Yasuji Kaneshima, Masayuki Yamamoto