Patents by Inventor Hong Wei GUAN

Hong Wei GUAN 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: 9805956
    Abstract: Disclosed is a method of manufacturing a lead frame, which comprises the steps of: providing an electrically-conductive base material having first and second planar sides; forming a plurality of conductive contact points on the first planar side of the base material; providing a non-conductive filling material over the first planar side of the base material so that the filling material fills spaces in-between the plurality of contact points to a form a layer comprising the filling material and the plurality of contact points; and etching the second planar side of the base material to expose a pattern of the filling material from the second planar side of the base material and to thereby form a plurality of isolated conductive regions on the second planar side of the base material, each isolated conductive region being connected with at least a respective one of the plurality of contact points on the first planar side of the base material. A lead frame structure is also disclosed.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: October 31, 2017
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Dawei Xing, Jie Liu, Hong Wei Guan, Yue Gen Yu, Seow Kiang Khoo
  • Patent number: 9202712
    Abstract: A method of manufacturing a lead frame, comprising the steps of: providing an electrically-conductive base material having first and second planar sides; forming a patterned conductive layer on the first planar side of the base material; etching the second planar side of the base material at portions with respect to exposed portions on the first planar side of the base material comprising the patterned conductive layer, to form partially-etched portions on the second planar side of the base material; providing a non-conductive filling material over the second planar side of the base material, wherein the filling material fills spaces inside the partially-etched portions on the second planar side of the base material to form adjacent portions of the filling material and a plurality of conductive portions on the second planar side of the base material; and etching the exposed portions of the first planar side of the base material comprising the patterned conductive layer to form partially-etched portions on the
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: December 1, 2015
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD.
    Inventors: Dawei Xing, Jie Liu, Hong Wei Guan, Yue Gen Yu, Seow Kiang Khoo
  • Publication number: 20140203418
    Abstract: A method of manufacturing a lead frame, comprising the steps of: providing an electrically-conductive base material having first and second planar sides; forming a patterned conductive layer on the first planar side of the base material; etching the second planar side of the base material at portions with respect to exposed portions on the first planar side of the base material comprising the patterned conductive layer, to form partially-etched portions on the second planar side of the base material; providing a non-conductive filling material over the second planar side of the base material, wherein the filling material fills spaces inside the partially-etched portions on the second planar side of the base material to form adjacent portions of the filling material and a plurality of conductive portions on the second planar side of the base material; and etching the exposed portions of the first planar side of the base material comprising the patterned conductive layer to form partially-etched portions on the
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Inventors: Dawei XING, Jie LIU, Hong Wei GUAN, Yue Gen YU, Seow Kiang KHOO
  • Publication number: 20140202736
    Abstract: Disclosed is a method of manufacturing a lead frame, which comprises the steps of: providing an electrically-conductive base material having first and second planar sides; forming a plurality of conductive contact points on the first planar side of the base material; providing a non-conductive filling material over the first planar side of the base material so that the filling material fills spaces in-between the plurality of contact points to a form a layer comprising the filling material and the plurality of contact points; and etching the second planar side of the base material to expose a pattern of the filling material from the second planar side of the base material and to thereby form a plurality of isolated conductive regions on the second planar side of the base material, each isolated conductive region being connected with at least a respective one of the plurality of contact points on the first planar side of the base material. A lead frame structure is also disclosed.
    Type: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Inventors: Dawei XING, Jie LIU, Hong Wei GUAN, Yue Gen YU, Seow Kiang KHOO