Patents by Inventor Chih-Chin Liao

Chih-Chin Liao 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: 20080001303
    Abstract: An electronic component is disclosed including a plurality of stacked semiconductor packages. A first such embodiment includes an internal connector for electrically coupling the stacked semiconductor packages. A second such embodiment includes an external connector for electrically coupling the stacked semiconductor packages.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: SANDISK CORPORATION
    Inventors: Cheemen Yu, Chih-Chin Liao, Hem Takiar
  • Publication number: 20080001266
    Abstract: An electronic component is disclosed including a plurality of stacked semiconductor packages. A first such embodiment includes an internal connector for electrically coupling the stacked semiconductor packages. A second such embodiment includes an external connector for electrically coupling the stacked semiconductor packages.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: SANDISK CORPORATION
    Inventors: Cheemen Yu, Chih-Chin Liao, Hem Takiar
  • Publication number: 20070284727
    Abstract: A printed circuit board is disclosed having coextensive electrical connectors and contact pad areas. Areas of the contact pads where the traces and/or vias are located may be etched away to ensure electrical isolation between the traces, vias and contact pads.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: Chih-Chin Liao, Han-Shiao Chen, Chin-Tien Chiu, Ken Jian Ming Wang, Cheemen Yu, Hem Takiar
  • Publication number: 20070267759
    Abstract: A substrate, and a semiconductor die package formed therefrom, are disclosed which include a distributed plating pattern for reducing mechanical stress on the semiconductor die. The substrate according to embodiments of the invention may include traces and contact pads plated in a double image plating process. Additionally, the substrate may include dummy plating areas including plating material. The plated vias and/or traces and the plating material within the dummy plating areas provide a plating pattern which is evenly distributed across the surface of the substrate. The even distribution of the plating pattern prevents peaks and valleys in the finished substrate.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 22, 2007
    Inventors: Chih-Chin Liao, Han-Shiao Chen, Chin-Tien Chiu, Cheemen Yu, Hem Takiar
  • Publication number: 20070269929
    Abstract: A substrate, and a semiconductor die package formed therefrom, are disclosed which include a distributed plating pattern for reducing mechanical stress on the semiconductor die. The substrate according to embodiments of the invention may include traces and contact pads plated in a double image plating process. Additionally, the substrate may include dummy plating areas including plating material. The plated vias and/or traces and the plating material within the dummy plating areas provide a plating pattern which is evenly distributed across the surface of the substrate. The even distribution of the plating pattern prevents peaks and valleys in the finished substrate.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 22, 2007
    Inventors: Chih-Chin Liao, Han-Shiao Chen, Chin-Tien Chiu, Cheemen Yu, Hem Takiar
  • Publication number: 20070235848
    Abstract: A semiconductor die substrate panel, and method of forming same, are disclosed wherein plating bars are severed for example by a laser after electroplating of the substrate. Severing the plating bars allows electrical testing of the substrate prior to attachment of electronic components.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 11, 2007
    Inventors: Chih-Chin Liao, Cheemen Yu, Hem Takiar
  • Publication number: 20070163109
    Abstract: A strip on which a plurality of integrated circuit package outlines may be fabricated within a plurality of process tools. The strip includes one or more fiducial notches and/or guide pin notches formed in an outer edge of the strip. The one or more fiducial and/or guide pin notches allow a position of the strip to be identified within at least one process tool of the plurality of process tools. By forming the notches in the outer periphery of the strip, the usable area on the strip on which integrated circuit package outlines may be formed is increased. The strip may alternatively include conventional fiducial and/or guide pin holes, with the molding compound applied at least partially around the holes on one or more sides of the strip. The strip may further alternatively include fiducial holes filled with a translucent material that provides stability to the strip while allowing the strip to be used with an optical recognition sensor.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 19, 2007
    Inventors: Hem Takiar, Manickam Thavarajah, Ken Wang, Chih-Chin Liao, Andre McKenzie, Shrikar Bhagath, Han-Shiao Chen, Chin-Tien Chiu
  • Publication number: 20070152319
    Abstract: A strengthened semiconductor die substrate and package are disclosed. The substrate may include contact fingers formed with nonlinear edges. Providing a nonlinear contour to the contact finger edges reduces the mechanical stress exerted on the semiconductor die which would otherwise occur with straight edges to the contact fingers. The substrate may additionally or alternatively include plating traces extending at an angle from the contact fingers. Extending at an angle, at least the ends of the plating traces at the edge of the substrate are covered beneath a lid in which the semiconductor package is encased. Thus, when in use with a host device, contact between the ends of the plating traces beneath the lid and contact pins of the host device is avoided.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: Hem Takiar, Cheemen Yu, Ken Wang, Chin-Tien Chiu, Han-Shiao Chen, Chih-Chin Liao
  • Publication number: 20070155247
    Abstract: A strengthened semiconductor die substrate and package are disclosed. The substrate may include contact fingers formed with nonlinear edges. Providing a nonlinear contour to the contact finger edges reduces the mechanical stress exerted on the semiconductor die which would otherwise occur with straight edges to the contact fingers. The substrate may additionally or alternatively include plating traces extending at an angle from the contact fingers. Extending at an angle, at least the ends of the plating traces at the edge of the substrate are covered beneath a lid in which the semiconductor package is encased. Thus, when in use with a host device, contact between the ends of the plating traces beneath the lid and contact pins of the host device is avoided.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: Hem Takiar, Cheemen Yu, Ken Wang, Chin-Tien Chiu, Han-Shiao Chen, Chih-Chin Liao
  • Publication number: 20070132066
    Abstract: A semiconductor die substrate panel is disclosed including a minimum kerf width between adjoining semiconductor package outlines on the panel, while ensuring electrical isolation of plated electrical terminals. By reducing the width of a boundary between adjoining package outlines, additional space is gained on a substrate panel for semiconductor packages.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Hem Takiar, Ken Wang, Chih-Chin Liao, Han-Shiao Chen
  • Publication number: 20070108257
    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: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Inventors: Chih-Chin Liao, Ken Wang, Han-Shiao Chen, Chin-Tien Chiu, Jack Chien, Shrikar Bhagath, Cheemen Yu, Hem Takiar
  • Publication number: 20070096266
    Abstract: A semiconductor package is disclosed including a plurality semiconductor die mounted on stacked and bonded layers of substrate, for example polyimide tape used in tape automated bonding processes. The tape may have a plurality of repeating patterns of traces and contact pads formed thereon. The traces each include aligned interconnect pads on the respective top and bottom surfaces of the substrate for bonding the traces of one pattern to the traces of another pattern after the patterns have been singulated from the substrate, aligned and stacked. Semiconductor die such as flash memory and a controller die are mounted on the traces of the respective patterns on the substrate. In order for the controller die to uniquely address a specific flash memory die in the stack, a group of traces on each substrate supporting the memory die are used as address pins and punched in a unique layout relative to the layout of the traces other substrates.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 3, 2007
    Inventors: Cheemen Yu, Chih-Chin Liao, Hem Takiar
  • Publication number: 20070004097
    Abstract: A dummy circuit pattern is disclosed on a surface of a substrate for a semiconductor package. The dummy circuit pattern includes a plurality of straight line segments and a plurality of interrupt patterns to breakup one or more of the straight line segments. The interrupt patterns are provided so as to not electrically isolate areas of the dummy pattern, thus providing electrical continuity across the dummy circuit pattern.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Cheemen Yu, Ken Ming Wang, Chin-Tien Chiu, Chih-Chin Liao, Han-Shiao Chen
  • Publication number: 20070001272
    Abstract: A leadframe for a semiconductor package is disclosed including electrical leads which extend from one side of the leadframe to an opposite side of the leadframe, where electrical connection may be made with the semiconductor die at the second side of the leadframe. The semiconductor die may be supported on the leads extending across the leadframe. The package may further include a spacer layer affixed to the electrical leads to fortify the semiconductor package and to prevent exposure of the electrical leads during the molding of the package.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Ming Lee, Chih-Chin Liao, Cheemen Yu, Hem Takiar
  • Publication number: 20060231943
    Abstract: A rigid wave pattern formed on a first side of a substrate in a semiconductor die package. The rigid wave pattern aligns with and overlies the contact fingers formed on the second side of the substrate. When the substrate and dice are encased during the molding process, the rigid wave pattern effectively reduces deformation of and stresses on the dice, therefore substantially alleviating die cracking.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Chin-Tien Chiu, Chih-Chin Liao, Ken Wang, Han-Shiao Chen, Cheemen Yu, Hem Takiar
  • Patent number: 6943439
    Abstract: A substrate and a fabrication method thereof are proposed, with at least a check point being formed on the substrate. Prior to wire bonding and/or molding processes, cleanness of the substrate (cleaned by plasma) is determined according to color variation of the check point, so as to allow only cleaned and contamination-free substrates to be subsequently formed with bonding wires and encapsulants thereon. Thereby, qualities of wire-bonded electrical connection and encapsulant adhesion for the substrate can be assured, which helps prevent the occurrence of delamination between the encapsulant and the substrate. Moreover, the check point formed on the substrate is made during general substrate fabrication by using current equipment and technique, and in a manner as not to interfere with trace routability on the substrate; thereby, costs and complexity of substrate fabrication would not undesirably increased.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: September 13, 2005
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chien-Ping Huang, Han-Ping Pu, Chih-Chin Liao
  • Patent number: 6740978
    Abstract: A semiconductor chip package is formed to be capable of reducing moisture erosion by configuring the bonding finger, the plating-conduction-line, and the trace on the chip carrier therein in such a way that the length of path for moisture to penetrate and to reach the bonding finger through a plating-conduction-line is significantly longer than those implemented in a conventional chip package.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: May 25, 2004
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chien-Ping Huang, Chih-Chin Liao, Yung-Kang Chu
  • Patent number: 6689636
    Abstract: A semiconductor device and a fabrication method of the same are proposed, in which at least one electronic component is firstly mounted on a first substrate, and then the first substrate is attached onto a semiconductor chip or a second substrate. Further, with the chip being deposited on the second substrate, electrical connection is established among the first substrate, the second substrate and the chip. This combined structure is subsequently subjected to molding, ball implantation and singulation processes, and thus completes the fabrication of the semiconductor device. Such a semiconductor device provides significant advantages, including prevention of the occurrence of wire short-circuiting, no need to alter the substrate design, no need to use a circuit pattern with fine pitches or an expensive substrate integrated with electronic components.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: February 10, 2004
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chih-Chin Liao, Han-PIng Pu, Chien-Ping Huang
  • Publication number: 20030205821
    Abstract: A semiconductor chip package is formed to be capable of reducing moisture erosion by configuring the bonding finger, the plating-conduction-line, and the trace on the chip carrier therein in such a way that the length of path for moisture to penetrate and to reach the bonding finger through a plating-conduction-line is significantly longer than those implemented in a conventional chip package.
    Type: Application
    Filed: April 18, 2003
    Publication date: November 6, 2003
    Applicant: Siliconware Precision Industries Co., Ltd.
    Inventors: Chien-Ping Huang, Chih-Chin Liao, Yung-Kang Chu
  • Publication number: 20030173680
    Abstract: A semiconductor device and a fabrication method of the same are proposed, in which at least one electronic component is firstly mounted on a first substrate, and then the first substrate is attached onto a semiconductor chip or a second substrate. Further, with the chip being deposited on the second substrate, electrical connection is established among the first substrate, the second substrate and the chip. This combined structure is subsequently subjected to molding, ball implantation and singulation processes, and thus completes the fabrication of the semiconductor device. Such a semiconductor device provides significant advantages, including prevention of the occurrence of wire short-circuiting, no need to alter the substrate design, no need to use a circuit pattern with fine pitches or an expensive substrate integrated with electronic components.
    Type: Application
    Filed: April 10, 2003
    Publication date: September 18, 2003
    Applicant: Siliconware Precision Industries Co., Ltd.
    Inventors: Chih-Chin Liao, Han-Ping Pu, Chien-Ping Huang