Patents Assigned to Semi-Photonics Co., Ltd.
  • Patent number: 7452739
    Abstract: A method for the separation of multiple dies during semiconductor fabrication is described. On an upper surface of a semiconductor wafer containing multiple dies, metal layers are deposited everywhere except where a block of stop electroplating material exists. The stop electroplating material is obliterated, and a barrier layer is formed above the entire remaining structure. A sacrificial metal element is added above the barrier layer, and then the substrate is removed. After the semiconductor material between the individual dies is eradicated, any desired bonding pads and patterned circuitry are added to the semiconductor surface opposite the sacrificial metal element, a passivation layer is added to this surface, and then the sacrificial metal element is removed. Tape is added to the now exposed barrier layer, the passivation layer is removed, the resulting structure is flipped over, and the tape is expanded to separate the individual dies.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: November 18, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventors: Chen-Fu Chu, Trung Tri Doan, Hao-Chun Cheng, Feng-Hsu Fan, Fu-Hsien Wang
  • Patent number: D555111
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 13, 2007
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen
  • Patent number: D555112
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 13, 2007
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen
  • Patent number: D555113
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 13, 2007
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen
  • Patent number: D555114
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 13, 2007
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen
  • Patent number: D580375
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 11, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventors: Jui-Kang Yen, Yung-Wei Chen
  • Patent number: D580376
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 11, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventors: Jui-Kang Yen, Yung-Wei Chen
  • Patent number: D580888
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: November 18, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Wen-Huang Liu
  • Patent number: D581884
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: December 2, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen
  • Patent number: D582360
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: December 9, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventors: Jui-Kang Yen, Yung-Wei Chen
  • Patent number: D582361
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: December 9, 2008
    Assignee: Semi-Photonics Co., Ltd.
    Inventor: Jui-Kang Yen