Patents by Inventor Masateru Osada

Masateru Osada 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: 7887665
    Abstract: An adhesive sheet (S) is expanded by expanding means (20) with a plate-like article (W) being mounted to a frame (F) after dicing of the plate-like article (W) to increase spacings between individual chips (T), an expanded state of the adhesive sheet (S) is maintained by expansion maintaining means (10), so that the plate-like article (W) is able to be conveyed together with the frame (F) with the spacings between the chips (T) being maintained, thereby preventing adjacent chips (T) from interfering with each other during the conveyance. This allows the plate-like article (W) after the dicing to be conveyed together with the frame (F) without edges of the adjacent chips (T) coming into contact with each other by vibration during the conveyance to cause chipping or microcracks in the edges.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: February 15, 2011
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventors: Yuichi Kubo, Masateru Osada, Masayuki Azuma, Yasuyuki Sakaya, Yuusuke Arai, Tomohiro Tamaki
  • Patent number: 7886798
    Abstract: An adhesive sheet (S) is expanded by an expanding mechanism (20) with a plate-like article (W) being mounted to a frame (F) after dicing of the plate-like article (W) to increase spacings between individual chips (T), an expanded state of the adhesive sheet (S) is maintained by an expansion maintaining device (10), so that the plate-like article (W) is able to be conveyed together with the frame (F) with the spacings between the chips (T) being maintained, thereby preventing adjacent chips (T) from interfering with each other during the conveyance. This allows the plate-like article (W), after the dicing, to be conveyed together with the frame (F) without edges of the adjacent chips (T) coming into contact with each other by vibration during the conveyance, thereby avoiding the causing of chipping or microcracks in the edges.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: February 15, 2011
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventors: Yuichi Kubo, Masateru Osada, Masayuki Azuma, Yasuyuki Sakaya, Yuusuke Arai, Tomohiro Tamaki
  • Publication number: 20080105383
    Abstract: An adhesive sheet (S) is expanded by an expanding mechanism (20) with a plate-like article (W) being mounted to a frame (F) after dicing of the plate-like article (W) to increase spacings between individual chips (T), an expanded state of the adhesive sheet (S) is maintained by an expansion maintaining device (10), so that the plate-like article (W) is able to be conveyed together with the frame (F) with the spacings between the chips (T) being maintained, thereby preventing adjacent chips (T) from interfering with each other during the conveyance. This allows the plate-like article (W), after the dicing, to be conveyed together with the frame (F) without edges of the adjacent chips (T) coming into contact with each other by vibration during the conveyance, thereby avoiding the causing of chipping or microcracks in the edges.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 8, 2008
    Applicant: TOKYO SEIMITSU CO., LTD.
    Inventors: Yuichi KUBO, Masateru OSADA, Masayuki AZUMA, Yasuyuki SAKAYA, Yuusuke ARAI, Tomohiro TAMAKI
  • Publication number: 20060005911
    Abstract: An adhesive sheet (S) is expanded by expanding means (20) with a plate-like article (W) being mounted to a frame (F) after dicing of the plate-like article (W) to increase spacings between individual chips (T), an expanded state of the adhesive sheet (S) is maintained by expansion maintaining means (10), so that the plate-like article (W) is able to be conveyed together with the frame (F) with the spacings between the chips (T) being maintained, thereby preventing adjacent chips (T) from interfering with each other during the conveyance. This allows the plate-like article (W) after the dicing to be conveyed together with the frame (F) without edges of the adjacent chips (T) coming into contact with each other by vibration during the conveyance to cause chipping or microcracks in the edges.
    Type: Application
    Filed: October 27, 2003
    Publication date: January 12, 2006
    Inventors: Yuichi Kubo, Masateru Osada, Yuusuke Arai, Tomohiro Tamaki
  • Publication number: 20040065647
    Abstract: The die bonder which mounts dies piece by piece on a base has a laser machining part which causes laser light to become incident from the obverse surface of a wafer and forms a modified region in the interior of the wafer. In this manner, the die bonder itself has the function of dividing the wafer into individual dies. Thus, the dicing step before the die bonding step can be omitted.
    Type: Application
    Filed: September 17, 2003
    Publication date: April 8, 2004
    Applicant: Tokyo Seimitsu Co., Ltd.
    Inventors: Yuichi Kubo, Masateru Osada, Masayuki Azuma
  • Patent number: 6354912
    Abstract: Two blades are arranged oppositely at a predetermined interval along the Y-axis. The two blades cut a wafer along two cutting lines at the same time while the two blades are moving along the X-axis. After the wafer is cut along these two cutting lines, the two blades are moved along the Y-axis by one pitch of the cutting lines so that the wafer can be cut along the next two cutting lines. This action is repeated to cut the wafer along the cutting lines continuously. This wafer cutting method can hold the movement of the blades along the X-axis to a minimum because of the oppositely-arranged two blades. Consequently, the wafer can be cut in a short period of time.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: March 12, 2002
    Assignees: Tokyo Seimitsu Co., Ltd., Kulicke & Soffa Investments, Inc.
    Inventors: Masateru Osada, Masayuki Azuma, Hirofumi Shimoda, Felix Cohen