Patents by Inventor Jin- Zhong Yao

Jin- Zhong Yao 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: 7723163
    Abstract: A method of forming a pre-molded lead frame having increased stand-offs includes the steps of attaching a first tape to a first side of the lead frame and a second tape to a second side of the lead frame. The taped lead frame is placed in a mold and a first flow of mold compound is initiated. The first flow of the mold compound fills a space between the first tape and an upper mold chase of the mold. A second flow of the mold compound then is initiated. The second flow of the mold compound fills the spaces between a die pad and leads of the lead frame. The first and second tapes then are removed from the lead frame. Improved stand-offs are provided because the first tape was depressed by the first flow of the mold compound.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: May 25, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Xue-song Xu, Zhi-gang Bai, Nan Xu, Jin-zhong Yao
  • Patent number: 7554185
    Abstract: A semiconductor package and method of forming the package, including a substrate having an opening formed therein. Contact pads are formed about a periphery of the opening on a first side of the substrate and a second opposing side of the substrate. A flip chip die is mounted to the substrate, having an active side mounted on a first side of the substrate and in electrical communication with at least some of the contact pads formed on the first side of the substrate. At least one wire bond die is mounted through the opening, with a non-active side mounted on the active side of the flip chip die. The wire bond die is in electrical communication with at least some of the plurality of contact pads formed on the second opposing side of the substrate.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: June 30, 2009
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Chee Seng Foong, Aminuddin Ismail, Wai Yew Lo, Bee Hoon Liau, Jin- Mei Liu, Jian- Hong Wang, Jin- Zhong Yao, Fu- Bin Song
  • Publication number: 20090098686
    Abstract: A method of forming a pre-molded lead frame having increased stand-offs includes the steps of attaching a first tape to a first side of the lead frame and a second tape to a second side of the lead frame. The taped lead frame is placed in a mold and a first flow of mold compound is initiated. The first flow of the mold compound fills a space between the first tape and an upper mold chase of the mold. A second flow of the mold compound then is initiated. The second flow of the mold compound fills the spaces between a die pad and leads of the lead frame. The first and second tapes then are removed from the lead frame. Improved stand-offs are provided because the first tape was depressed by the first flow of the mold compound.
    Type: Application
    Filed: May 26, 2008
    Publication date: April 16, 2009
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Xue-song Xu, Zhi-gang Bai, Nan Xu, Jin-zhong Yao
  • Publication number: 20080111248
    Abstract: A semiconductor package (100, 150, 200, 250), and method of forming the package, including a substrate (102, 102?, 202, 202?) having an opening (104, 104?, 204, 204?) formed therein. Contact pads (112, 112?, 212, 212?) are formed about a periphery of the opening on a first side of the substrate (106, 106?, 206, 206?) and a second opposing side (132, 132?, 232, 232?) of the substrate. A flip chip die (120, 120?, 220, 220?) is mounted to the substrate, having an active side (114, 114?, 214, 214?) mounted on a first side of the substrate and in electrical communication with at least some of the contact pads formed on the first side of the substrate. At least one wire bond die (110, 110?, 210, 210?) is mounted through the opening, with a non-active side mounted on the active side of the flip chip die. The wire bond die is in electrical communication with at least some of the plurality of contact pads formed on the second opposing side of the substrate.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 15, 2008
    Inventors: Chee Seng Foong, Aminuddin Ismail, Wai Yew Lo, Bee Hoon Liau, Jin-Mei Liu, Jian-Hong Wang, Jin-Zhong Yao, Fu-Bin Song