Patents by Inventor Xia Feng

Xia Feng 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: 20150056247
    Abstract: The present invention provides a combined AIDS vaccine for preventing and/or treating AIDS, which consists of four or more different vector-based AIDS vaccines, wherein HIV protein gene comprised in the different AIDS vaccines may be same.
    Type: Application
    Filed: December 23, 2011
    Publication date: February 26, 2015
    Applicants: NATIONAL INSTITUTE FOR VIRAL DISEASE CONTROL AND PREVENTION, CHINESE CENTER FOR DISEASE CONTROL AND, BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Yi Zeng, Xia Feng, Shuangqing Yu, Ling Yang, Zelin Li, Wei Kong, Xianghui Yu
  • Patent number: 8962476
    Abstract: A semiconductor device has a semiconductor die and first conductive layer formed over a surface of the semiconductor die. A first insulating layer is formed over the surface of the semiconductor die. A second insulating layer is formed over the first insulating layer and first conductive layer. An opening is formed in the second insulating layer over the first conductive layer. A second conductive layer is formed in the opening over the first conductive layer and second insulating layer. The second conductive layer has a width that is less than a width of the first conductive layer along a first axis. The second conductive layer has a width that is greater than a width of the first conductive layer along a second axis perpendicular to the first axis. A third insulating layer is formed over the second conductive layer and first insulating layer.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: February 24, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Xia Feng, Jianmin Feng, Kang Chen
  • Publication number: 20150008597
    Abstract: A semiconductor wafer contains a plurality of semiconductor die separated by a saw street. An insulating layer is formed over the semiconductor wafer. A protective layer is formed over the insulating layer including an edge of the semiconductor die along the saw street. The protective layer covers an entire surface of the semiconductor wafer. Alternatively, an opening is formed in the protective layer over the saw street. The insulating layer has a non-planar surface and the protective layer has a planar surface. The semiconductor wafer is singulated through the protective layer and saw street to separate the semiconductor die while protecting the edge of the semiconductor die. Leading with the protective layer, the semiconductor die is mounted to a carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and protective layer are removed. A build-up interconnect structure is formed over the semiconductor die and encapsulant.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng
  • Patent number: 8907476
    Abstract: A semiconductor wafer contains a plurality of semiconductor die separated by a saw street. An insulating layer is formed over the semiconductor wafer. A protective layer is formed over the insulating layer including an edge of the semiconductor die along the saw street. The protective layer covers an entire surface of the semiconductor wafer. Alternatively, an opening is formed in the protective layer over the saw street. The insulating layer has a non-planar surface and the protective layer has a planar surface. The semiconductor wafer is singulated through the protective layer and saw street to separate the semiconductor die while protecting the edge of the semiconductor die. Leading with the protective layer, the semiconductor die is mounted to a carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and protective layer are removed. A build-up interconnect structure is formed over the semiconductor die and encapsulant.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 9, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng
  • Publication number: 20140339683
    Abstract: A plurality of semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. A portion of the encapsulant is designated as a saw street between the die, and a portion of the encapsulant is designated as a substrate edge around a perimeter of the encapsulant. The carrier is removed. A first insulating layer is formed over the die, saw street, and substrate edge. A first conductive layer is formed over the first insulating layer. A second insulating layer is formed over the first conductive layer and first insulating layer. The encapsulant is singulated through the first insulating layer and saw street to separate the semiconductor die. A channel or net pattern can be formed in the first insulating layer on opposing sides of the saw street, or the first insulating layer covers the entire saw street and molding area around the semiconductor die.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng, Xusheng Bao
  • Patent number: 8878359
    Abstract: A plurality of semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. A portion of the encapsulant is designated as a saw street between the die, and a portion of the encapsulant is designated as a substrate edge around a perimeter of the encapsulant. The carrier is removed. A first insulating layer is formed over the die, saw street, and substrate edge. A first conductive layer is formed over the first insulating layer. A second insulating layer is formed over the first conductive layer and first insulating layer. The encapsulant is singulated through the first insulating layer and saw street to separate the semiconductor die. A channel or net pattern can be formed in the first insulating layer on opposing sides of the saw street, or the first insulating layer covers the entire saw street and molding area around the semiconductor die.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 4, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng, Xusheng Bao
  • Publication number: 20140252654
    Abstract: A semiconductor wafer has a plurality of first semiconductor die. A first conductive layer is formed over an active surface of the die. A first insulating layer is formed over the active surface and first conductive layer. A repassivation layer is formed over the first insulating layer and first conductive layer. A via is formed through the repassivation layer to the first conductive layer. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier is removed. A second insulating layer is formed over the repassivation layer and encapsulant. A second conductive layer is formed over the repassivation layer and first conductive layer. A third insulating layer is formed over the second conductive layer and second insulating layer. An interconnect structure is formed over the second conductive layer.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng
  • Publication number: 20140246779
    Abstract: A semiconductor device has a semiconductor die and conductive layer formed over a surface of the semiconductor die. A first channel can be formed in the semiconductor die. An encapsulant is deposited over the semiconductor die. A second channel can be formed in the encapsulant. A first insulating layer is formed over the semiconductor die and first conductive layer and into the first channel. The first insulating layer extends into the second channel. The first insulating layer has characteristics of tensile strength greater than 150 MPa, elongation between 35-150%, and thickness of 2-30 micrometers. A second insulating layer can be formed over the semiconductor die prior to forming the first insulating layer. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected to the first conductive layer. The first insulating layer provides stress relief during formation of the interconnect structure.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Pandi C. Marimuthu, Kang Chen, Hin Hwa Goh, Yu Gu, Il Kwon Shim, Rui Huang, Seng Guan Chow, Jianmin Fang, Xia Feng
  • Patent number: 8786100
    Abstract: A semiconductor wafer has a plurality of first semiconductor die. A first conductive layer is formed over an active surface of the die. A first insulating layer is formed over the active surface and first conductive layer. A repassivation layer is formed over the first insulating layer and first conductive layer. A via is formed through the repassivation layer to the first conductive layer. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier is removed. A second insulating layer is formed over the repassivation layer and encapsulant. A second conductive layer is formed over the repassivation layer and first conductive layer. A third insulating layer is formed over the second conductive layer and second insulating layer. An interconnect structure is formed over the second conductive layer.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 22, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng
  • Patent number: 8759155
    Abstract: A semiconductor device has a semiconductor die and conductive layer formed over a surface of the semiconductor die. A first channel can be formed in the semiconductor die. An encapsulant is deposited over the semiconductor die. A second channel can be formed in the encapsulant. A first insulating layer is formed over the semiconductor die and first conductive layer and into the first channel. The first insulating layer extends into the second channel. The first insulating layer has characteristics of tensile strength greater than 150 MPa, elongation between 35-150%, and thickness of 2-30 micrometers. A second insulating layer can be formed over the semiconductor die prior to forming the first insulating layer. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected to the first conductive layer. The first insulating layer provides stress relief during formation of the interconnect structure.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: June 24, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Pandi C. Marimuthu, Kang Chen, Hin Hwa Goh, Yu Gu, Il Kwon Shim, Rui Huang, Seng Guan Chow, Jianmin Fang, Xia Feng
  • Publication number: 20140084424
    Abstract: A semiconductor wafer contains a plurality of semiconductor die separated by a saw street. A contact pad is formed over an active surface of the semiconductor die. A protective pattern is formed over the active surface of the semiconductor die between the contact pad and saw street of the semiconductor die. The protective pattern includes a segmented metal layer or plurality of parallel segmented metal layers. An insulating layer is formed over the active surface, contact pad, and protective pattern. A portion of the insulating layer is removed to expose the contact pad. The protective pattern reduces erosion of the insulating layer between the contact pad and saw street of the semiconductor die. The protective pattern can be angled at corners of the semiconductor die or follow a contour of the contact pad. The protective pattern can be formed at corners of the semiconductor die.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Xia Feng, Kang Chen, Jianmin Fang
  • Patent number: 8642446
    Abstract: A semiconductor wafer contains a plurality of semiconductor die separated by a saw street. A contact pad is formed over an active surface of the semiconductor die. A protective pattern is formed over the active surface of the semiconductor die between the contact pad and saw street of the semiconductor die. The protective pattern includes a segmented metal layer or plurality of parallel segmented metal layers. An insulating layer is formed over the active surface, contact pad, and protective pattern. A portion of the insulating layer is removed to expose the contact pad. The protective pattern reduces erosion of the insulating layer between the contact pad and saw street of the semiconductor die. The protective pattern can be angled at corners of the semiconductor die or follow a contour of the contact pad. The protective pattern can be formed at corners of the semiconductor die.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: February 4, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Xia Feng, Kang Chen, Jianmin Fang
  • Publication number: 20130249111
    Abstract: A semiconductor device has a semiconductor die and first conductive layer formed over a surface of the semiconductor die. A first insulating layer is formed over the surface of the semiconductor die. A second insulating layer is formed over the first insulating layer and first conductive layer. An opening is formed in the second insulating layer over the first conductive layer. A second conductive layer is formed in the opening over the first conductive layer and second insulating layer. The second conductive layer has a width that is less than a width of the first conductive layer along a first axis. The second conductive layer has a width that is greater than a width of the first conductive layer along a second axis perpendicular to the first axis. A third insulating layer is formed over the second conductive layer and first insulating layer.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 26, 2013
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Xia Feng, Jianmin Feng, Kang Chen
  • Patent number: 8501618
    Abstract: A semiconductor device has a semiconductor die and first conductive layer formed over a surface of the semiconductor die. A first insulating layer is formed over the surface of the semiconductor die. A second insulating layer is formed over the first insulating layer and first conductive layer. An opening is formed in the second insulating layer over the first conductive layer. A second conductive layer is formed in the opening over the first conductive layer and second insulating layer. The second conductive layer has a width that is less than a width of the first conductive layer along a first axis. The second conductive layer has a width that is greater than a width of the first conductive layer along a second axis perpendicular to the first axis. A third insulating layer is formed over the second conductive layer and first insulating layer.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: August 6, 2013
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Xia Feng, Jianmin Fang, Kang Chen
  • Patent number: 8456002
    Abstract: A semiconductor device has a semiconductor die and conductive layer formed over a surface of the semiconductor die. A first channel can be formed in the semiconductor die. An encapsulant is deposited over the semiconductor die. A second channel can be formed in the encapsulant. A first insulating layer is formed over the semiconductor die and first conductive layer and into the first channel. The first insulating layer extends into the second channel. The first insulating layer has characteristics of tensile strength greater than 150 MPa, elongation between 35-150%, and thickness of 2-30 micrometers. A second insulating layer can be formed over the semiconductor die prior to forming the first insulating layer. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected to the first conductive layer. The first insulating layer provides stress relief during formation of the interconnect structure.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: June 4, 2013
    Assignee: STATS ChipPAC Ltd.
    Inventors: Yaojian Lin, Pandi C. Marimuthu, Kang Chen, Hin Hwa Goh, Yu Gu, Il Kwon Shim, Rui Huang, Seng Guan Chow, Jianmin Fang, Xia Feng
  • Publication number: 20130113092
    Abstract: A semiconductor device has a semiconductor die and conductive layer formed over a surface of the semiconductor die. A first channel can be formed in the semiconductor die. An encapsulant is deposited over the semiconductor die. A second channel can be formed in the encapsulant. A first insulating layer is formed over the semiconductor die and first conductive layer and into the first channel. The first insulating layer extends into the second channel. The first insulating layer has characteristics of tensile strength greater than 150 MPa, elongation between 35-150%, and thickness of 2-30 micrometers. A second insulating layer can be formed over the semiconductor die prior to forming the first insulating layer. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected to the first conductive layer. The first insulating layer provides stress relief during formation of the interconnect structure.
    Type: Application
    Filed: December 21, 2011
    Publication date: May 9, 2013
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Yaojian Lin, Pandi C. Marimuthu, Kang Chen, Hin Hwa Goh, Yu Gu, Il Kwon Shim, Rui Huang, Seng Guan Chow, Jianmin Fang, Xia Feng
  • Patent number: 8409926
    Abstract: A plurality of semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. A portion of the encapsulant is designated as a saw street between the die, and a portion of the encapsulant is designated as a substrate edge around a perimeter of the encapsulant. The carrier is removed. A first insulating layer is formed over the die, saw street, and substrate edge. A first conductive layer is formed over the first insulating layer. A second insulating layer is formed over the first conductive layer and first insulating layer. The encapsulant is singulated through the first insulating layer and saw street to separate the semiconductor die. A channel or net pattern can be formed in the first insulating layer on opposing sides of the saw street, or the first insulating layer covers the entire saw street and molding area around the semiconductor die.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: April 2, 2013
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng, Xusheng Bao
  • Publication number: 20130075936
    Abstract: A semiconductor device has a first encapsulant deposited over a first carrier. A plurality of conductive vias is formed through the first encapsulant to provide an interconnect substrate. A first semiconductor die is mounted over a second carrier. The interconnect substrate is mounted over the second carrier adjacent to the first semiconductor die. A second semiconductor die is mounted over the second carrier adjacent to the interconnect substrate. A second encapsulant is deposited over the first and second semiconductor die, interconnect substrate, and second carrier. A first interconnect structure is formed over a first surface of the second encapsulant and electrically connected to the conductive vias. A second interconnect structure is formed over a second surface of the second encapsulant and electrically connected to the conductive vias to make the Fo-WLCSP stackable. Additional semiconductor die can be mounted over the first and second semiconductor die in a PoP arrangement.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Yaojian Lin, Jianmin Fang, Xia Feng, Kang Cheng
  • Patent number: 8343809
    Abstract: A semiconductor wafer has a plurality of first semiconductor die. A first conductive layer is formed over an active surface of the die. A first insulating layer is formed over the active surface and first conductive layer. A repassivation layer is formed over the first insulating layer and first conductive layer. A via is formed through the repassivation layer to the first conductive layer. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier is removed. A second insulating layer is formed over the repassivation layer and encapsulant. A second conductive layer is formed over the repassivation layer and first conductive layer. A third insulating layer is formed over the second conductive layer and second insulating layer. An interconnect structure is formed over the second conductive layer.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: January 1, 2013
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng
  • Publication number: 20120199965
    Abstract: A semiconductor wafer contains a plurality of semiconductor die separated by a saw street. An insulating layer is formed over the semiconductor wafer. A protective layer is formed over the insulating layer including an edge of the semiconductor die along the saw street. The protective layer covers an entire surface of the semiconductor wafer. Alternatively, an opening is formed in the protective layer over the saw street. The insulating layer has a non-planar surface and the protective layer has a planar surface. The semiconductor wafer is singulated through the protective layer and saw street to separate the semiconductor die while protecting the edge of the semiconductor die. Leading with the protective layer, the semiconductor die is mounted to a carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and protective layer are removed. A build-up interconnect structure is formed over the semiconductor die and encapsulant.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 9, 2012
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Yaojian Lin, Kang Chen, Jianmin Fang, Xia Feng