Patents by Inventor Jack Chang

Jack Chang 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).

  • Publication number: 20120256464
    Abstract: A modular furniture frame assembly includes a seat frame member and a top-mounted frame member. The seat frame member has a top side formed with a set of spaced apart slots. The top-mounted frame member is removably disposed on the top side of the seat frame member. The top-mounted frame member has a set of spaced apart fastening components that are fastened to the top-mounted frame member, that extend downwardly, removably and respectively through corresponding ones of the slots in the seat frame member, and that are fastened removably to the seat frame member.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 11, 2012
    Inventor: Jack CHANG
  • Patent number: 8232145
    Abstract: A flash memory card and methods of manufacturing same are disclosed. The card includes a semiconductor package fabricated to receive a single-sided or double-sided lid. A surface of the semiconductor package may be formed with holes, trenches and/or pockmarks. After the holes, trenches and/or pockmarks are formed, a lid may be attached to the package surface in an injection molding process. During the injection molding process, the molten plastic flows into the holes, trenches and/or pockmarks to interconnect with the surface of the semiconductor package. Thus, when the molten plastic hardens, the holes, trenches and/or pockmarks ensure that the lid remains firmly attached to semiconductor package.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: July 31, 2012
    Assignee: SanDisk Technologies Inc.
    Inventors: Che-Jung Chang, Chin-Tien Chiu, Cheeman Yu, Hem Takiar, Jack Chang Chien, Ning Liu
  • Patent number: 8212360
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: July 3, 2012
    Assignee: SanDisk Technologies Inc.
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheemen Yu, Hem Takiar
  • Publication number: 20120145332
    Abstract: A system is disclosed for ejecting a semiconductor die from a tape to which the die is affixed during the wafer dicing process. In embodiments, the system includes an ejector tool including a support table, ejector pins and a pick-up arm. The support table is connected to a vacuum source for creating a negative pressure at an interface between the tape and support table. The support table further includes an aperture with one or more chamfered sidewalls. The vacuum source is connected to the aperture so that, upon placement of the tape on the support table with a die centered over the aperture, the vacuum source pulls a portion of the tape around the edges of the semiconductor die away from the die and into the space created by the chamfered edges.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 14, 2012
    Inventors: Jack Chang Chien, KH Ong, Weili Wang, Li Wang, XingZhi Liang, Shicai Ma
  • Publication number: 20110210446
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheemen Yu, Hem Takiar
  • Patent number: 7967184
    Abstract: A semiconductor package having a low profile is disclosed. In embodiments, a surface mounted component may be mounted directly to the core of the semiconductor package substrate, so that there is no conductive layer, plating layers or solder paste between the component and the substrate core. The surface mounted component may be any type of component which may be surface mounted on a substrate according to an SMT process, including for example passive components and various packaged semiconductors.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: June 28, 2011
    Assignee: SanDisk Corporation
    Inventors: Chih-Chin Liao, Ken Jian Ming Wang, Han-Shiao Chen, Chin-Tien Chiu, Jack Chang Chien, Shrikar Bhagath, Cheemen Yu, Hem Takiar
  • Patent number: 7952179
    Abstract: A portable memory card and methods of manufacturing same are disclosed. The portable memory includes a substrate having a plurality of holes formed therein. During the encapsulation process, mold compound flows over the top surface of the substrate, through the holes, and down into a recessed section formed in the bottom mold cap plate to form a projection of mold compound on the bottom surface of the substrate.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 31, 2011
    Assignee: SanDisk Corporation
    Inventors: Chin-Tien Chiu, Hem Takiar, Chih-Chin Liao, Cheemen Yu, Ning Ye, Jack Chang Chien
  • Patent number: 7939382
    Abstract: A portable memory card and methods of manufacturing same are disclosed. The portable memory includes a substrate having a plurality of holes formed therein. During the encapsulation process, mold compound flows over the top surface of the substrate, through the holes, and down into a recessed section formed in the bottom mold cap plate to form a projection of mold compound on the bottom surface of the substrate.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 10, 2011
    Assignee: SanDisk Corporation
    Inventors: Chin-Tien Chiu, Hem Takiar, Chih-Chin Liao, Cheemen Yu, Ning Ye, Jack Chang Chien
  • Patent number: 7939944
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: May 10, 2011
    Assignee: SanDisk Corporation
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheeman Yu, Hem Takiar
  • Publication number: 20110084377
    Abstract: A system is disclosed for ejecting a semiconductor die from a tape to which the die is affixed during the wafer dicing process. In embodiments, the system includes an ejector tool including a support table, ejector pins and a pick-up arm. The support table is connected to a vacuum source for creating a negative pressure at an interface between the tape and support table. The support table further includes an aperture with one or more chamfered sidewalls. The vacuum source is connected to the aperture so that, upon placement of the tape on the support table with a die centered over the aperture, the vacuum source pulls a portion of the tape around the edges of the semiconductor die away from the die and into the space created by the chamfered edges.
    Type: Application
    Filed: February 22, 2010
    Publication date: April 14, 2011
    Inventors: Jack Chang Chien, KH Ong, Weili Wang, Li Wang, XingZhi Liang, Shicai Ma
  • Patent number: 7879467
    Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: February 1, 2011
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Jack Chang, Mohammad Mirzamaani, Kai Tang
  • Publication number: 20100289147
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Application
    Filed: July 26, 2010
    Publication date: November 18, 2010
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheemen Yu, Hem Takiar
  • Patent number: 7772047
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: August 10, 2010
    Assignee: SanDisk Corporation
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheemen Yu, Hem Takiar
  • Patent number: 7763980
    Abstract: A semiconductor device having a redistribution layer, and methods of forming same, are disclosed. After fabrication of semiconductor die on a wafer, a tape assembly is applied onto a surface of the wafer, in contact with the surfaces of each semiconductor die on the wafer. The tape assembly includes a backgrind tape as a base layer, and a film assembly adhered to the backgrind tape. The film assembly in turn includes an adhesive film on which is deposited a thin layer of conductive material. The redistribution layer pattern is traced into the tape assembly, using for example a laser. Thereafter, the unheated portions of the tape assembly may be removed, leaving the heated redistribution layer pattern on each semiconductor die.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 27, 2010
    Assignee: SanDisk Corporation
    Inventors: Chien-Ko Liao, Chin-Tien Chiu, Jack Chang Chien, Cheemen Yu, Hem Takiar
  • Publication number: 20100104893
    Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
    Type: Application
    Filed: December 14, 2009
    Publication date: April 29, 2010
    Inventors: Jack Chang, Mohammad Mirzamaani, Kai Tang
  • Publication number: 20100052155
    Abstract: A flash memory card and methods of manufacturing same are disclosed. The card includes a semiconductor package fabricated to receive a single-sided or double-sided lid. A surface of the semiconductor package may be formed with holes, trenches and/or pockmarks. After the holes, trenches and/or pockmarks are formed, a lid may be attached to the package surface in an injection molding process. During the injection molding process, the molten plastic flows into the holes, trenches and/or pockmarks to interconnect with the surface of the semiconductor package. Thus, when the molten plastic hardens, the holes, trenches and/or pockmarks ensure that the lid remains firmly attached to semiconductor package.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Inventors: Che-Jung Chang, Chin-Tien Chiu, Cheeman Yu, Hem Takiar, Jack Chang Chien, Ning Liu
  • Publication number: 20100055847
    Abstract: A flash memory card and methods of manufacturing same are disclosed. The card includes a semiconductor package fabricated to receive a single-sided or double-sided lid. A surface of the semiconductor package may be formed with holes, trenches and/or pockmarks. After the holes, trenches and/or pockmarks are formed, a lid may be attached to the package surface in an injection molding process. During the injection molding process, the molten plastic flows into the holes, trenches and/or pockmarks to interconnect with the surface of the semiconductor package. Thus, when the molten plastic hardens, the holes, trenches and/or pockmarks ensure that the lid remains firmly attached to semiconductor package.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Inventors: Che-Jung Chang, Chin-Tien Chiu, Cheeman Yu, Hem Takiar, Jack Chang Chien, Ning Liu
  • Patent number: D673527
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 1, 2013
    Assignee: GP Acoustics International Limited
    Inventors: Simon Davies, Patrick Ho, Yang Jack Chang, Graham Allen
  • Patent number: D674780
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 22, 2013
    Assignee: GP Acoustics International Limited
    Inventors: Simon Davies, Patrick Ho, Yang Jack Chang, Graham Allen
  • Patent number: D676025
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 12, 2013
    Assignee: GP Acoustics International Limited
    Inventors: Simon Davies, Patrick Ho, Yang Jack Chang, Graham Allen