Patents by Inventor Nan-Jang Chen

Nan-Jang Chen 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: 8212343
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 3, 2012
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Publication number: 20120111623
    Abstract: A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.
    Type: Application
    Filed: January 16, 2012
    Publication date: May 10, 2012
    Applicant: MEDIATEK INC.
    Inventors: Nan-Jang CHEN, Hong-Chin LIN
  • Publication number: 20120104588
    Abstract: A leadframe package includes a die pad with four unitary, outwardly extending slender bars; a plurality of leads arranged along periphery of the die pad; a separate pad segment separated from the die pad and isolated from the plurality of leads; a semiconductor die mounted on an upper side of the die pad, wherein the semiconductor die contains first bond pads wire-bonded to respective the plurality of leads and a second bond pad wire-bonded to the separate pad segment; and a molding compound encapsulating the semiconductor die, the upper side of the die pad, the first suspended pad segment and inner portions of the plurality of leads.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Patent number: 8124461
    Abstract: A leadframe package includes a die pad with four unitary, outwardly extending slender bars; a plurality of leads arranged along periphery of the die pad; a separate pad segment separated from the die pad and isolated from the plurality of leads; a semiconductor die mounted on an upper side of the die pad, wherein the semiconductor die contains first bond pads wire-bonded to respective the plurality of leads and a second bond pad wire-bonded to the separate pad segment; and a molding compound encapsulating the semiconductor die, the upper side of the die pad, the first suspended pad segment and inner portions of the plurality of leads.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: February 28, 2012
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Patent number: 8120927
    Abstract: A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: February 21, 2012
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Patent number: 8106490
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: January 31, 2012
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Publication number: 20120018862
    Abstract: A semiconductor package includes a die pad; a semiconductor die mounted on the die pad; a plurality of leads in a first horizontal plane disposed along peripheral edges of the die pad; a ground bar downset from the first horizontal plane to a second horizontal plane between the leads and the die pad; a plurality of downset tie bars connecting the ground bar with the die pad; a plurality of ground wires bonding to both of the ground bar and the die pad; and a molding compound at least partially encapsulating the die pad, inner ends of the leads such that bottom surface of the die pad is exposed within the molding compound.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Inventors: Nan-Jang Chen, Yau-Wai Wong
  • Publication number: 20110291250
    Abstract: A semiconductor chip package is provided. The semiconductor chip package includes a lead frame having a chip carrier. A semiconductor chip is mounted on the chip carrier, having a plurality of bonding pads thereon. A package substrate has a cavity therein to accommodate the chip carrier and the semiconductor chip, wherein at least one of the bonding pads of the semiconductor chip is electrically coupled to the package substrate.
    Type: Application
    Filed: August 11, 2011
    Publication date: December 1, 2011
    Applicant: MEDIATEK INC.
    Inventor: Nan-Jang Chen
  • Patent number: 8058720
    Abstract: A semiconductor package includes a die pad; a semiconductor die mounted on the die pad; a plurality of leads in a first horizontal plane disposed along peripheral edges of the die pad; a ground bar downset from the first horizontal plane to a second horizontal plane between the leads and the die pad; a plurality of downset tie bars connecting the ground bar with the die pad; a plurality of ground wires bonding to both of the ground bar and the die pad; and a molding compound at least partially encapsulating the die pad, inner ends of the leads such that bottom surface of the die pad is exposed within the molding compound.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: November 15, 2011
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Yau-Wai Wong
  • Publication number: 20110248394
    Abstract: A semiconductor package includes a die pad; a semiconductor die mounted on the die pad; a plurality of leads disposed along peripheral edges of the die pad; a ground bar between the leads and the die pad; and a plurality of bridges connecting the ground bar with the die pad, wherein a gap between two adjacent bridges has a length that is equal to or less than 3 mm.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Inventors: Nan-Jang Chen, Chun-Wei Chang, Sheng-Ming Chang, Che-Yuan Jao, Ching-Chih Li, Nan-Cheng Chen
  • Patent number: 8018037
    Abstract: A semiconductor chip package is provided. The semiconductor chip package includes a lead frame having a chip carrier. A semiconductor chip is mounted on the chip carrier, having a plurality of bonding pads thereon. A package substrate has a cavity therein to accommodate the chip carrier and the semiconductor chip, wherein at least one of the bonding pads of the semiconductor chip is electrically coupled to the package substrate.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 13, 2011
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Publication number: 20110176345
    Abstract: An electronic apparatus is provided. A PCB has first and second signal paths therein. First and second fingers are disposed on the first and second signal paths, respectively. A controller is coupled to a first memory via the first finger and a second memory via the second finger, and accesses the first and second memories through the first and second signal paths, respectively. The first and second signal paths share a common segment between the controller and a branch point. First and second components are disposed between the first finger and the branch point and between the second finger and the branch point, respectively. The distances between the first component and the branch point and between the second component and the branch point are smaller than or equal to the distance between the first component and the first finger and between the second component and the second finger, respectively.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Applicant: MEDIATEK INC.
    Inventor: Nan-Jang Chen
  • Patent number: 7932586
    Abstract: The invention relates to leadframe semiconductor packages mounted on a heat-sink and fabrication thereof. A system in package (SiP) comprises a leadframe having extension leads, configured with divisional heat sinks serving as power and ground nets. A set of semiconductor dies is attached by adhesive on the central region of the lead frame. Pluralities of wire bonds electrically connect the set of semiconductor dies to the leadframe and to the divisional heat sinks respectively. An encapsulation encloses the leadframe, but leaves the extension leads and the divisional heat sink uncovered, exposing a heat dissipating surface.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: April 26, 2011
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Patent number: 7875965
    Abstract: A semiconductor chip package is disclosed. The semiconductor chip package comprises a lead frame having a chip carrier, wherein the chip carrier has a first surface and an opposite second surface. A semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the semiconductor chip has an area larger than that of the chip carrier. A package substrate comprises a central region attached to the second surface, having an area larger than that of the semiconductor chip, wherein some of the bonding pads of the semiconductor chip are electrically connected to a marginal region of the package substrate.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 25, 2011
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Publication number: 20110012244
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 20, 2011
    Applicant: MEDIATEK INC.
    Inventor: Nan-Jang Chen
  • Publication number: 20110012241
    Abstract: A semiconductor chip package comprises a lead frame having a chip carrier having a first surface and an opposite second surface. A first semiconductor chip is mounted on the first surface, having a plurality of bonding pads thereon, wherein the first semiconductor chip has an area larger that that of the chip carrier. A package substrate has a central region attached to the second surface of the chip carrier, having an area larger than that of the first semiconductor chip, wherein the package substrate comprises a plurality of fingers on a top surface thereof in a marginal region of the package substrate, which are arranged in an array with a row of inner fingers adjacent to the first semiconductor chip and a row of outer fingers adjacent to an edge of the package substrate, wherein the inner and outer fingers are electrically connected to the bonding pads of the first semiconductor chip and the lead frame respectively.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 20, 2011
    Applicant: MEDIATEK INC.
    Inventor: Nan-Jang CHEN
  • Patent number: 7834436
    Abstract: An image processing system including an image processing device and a service providing device is provided. The image processing device includes a first processor and a first memory storing instructions that cause the image processing device to obtain parameters for receiving the service from the service providing device, request the service providing device to provide the service and implement a first or second function of the image processing device based on the parameters obtained from the parameter specifying unit. The service providing device includes a second processor and a second memory storing instructions that cause the service providing device to execute a service function to provide the service to the image processing device after receiving a request for the service from the image processing device.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: November 16, 2010
    Assignee: Mediatek Inc.
    Inventor: Nan-Jang Chen
  • Patent number: 7834435
    Abstract: A leadframe package includes a die pad with four unitary, outwardly extending slender bars; a plurality of leads arranged along periphery of the die pad; a separate pad segment separated from the die pad and isolated from the plurality of leads; a semiconductor die mounted on an upper side of the die pad, wherein the semiconductor die contains first bond pads wire-bonded to respective the plurality of leads and a second bond pad wire-bonded to the separate pad segment; and a molding compound encapsulating the semiconductor die, the upper side of the die pad, the first suspended pad segment and inner portions of the plurality of leads.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: November 16, 2010
    Assignee: Mediatek Inc.
    Inventors: Nan-Jang Chen, Hong-Chin Lin
  • Publication number: 20100264533
    Abstract: A semiconductor chip package is provided. The semiconductor chip package includes a lead frame having a chip carrier. A semiconductor chip is mounted on the chip carrier, having a plurality of bonding pads thereon. A package substrate has a cavity therein to accommodate the chip carrier and the semiconductor chip, wherein at least one of the bonding pads of the semiconductor chip is electrically coupled to the package substrate.
    Type: Application
    Filed: April 16, 2009
    Publication date: October 21, 2010
    Applicant: MEDIATEK INC.
    Inventor: Nan-Jang Chen
  • Publication number: 20100207260
    Abstract: An electronic package is provided. The electronic package comprises a die pad having a die attached thereon. A plurality of leads surrounds the die pad and spaced therefrom to define a ring gap therebetween. At least one first common electrode bar is in the ring gap and substantially coplanar to the die pad, in which at least one of the plurality of leads extends to the first common electrode bar. A molding compound partially encapsulates the die pad and the first common electrode bar, such that the bottom surfaces of the die pad and the first common electrode bar are exposed. A length of the first common electrode bar is substantially equal to a predetermined distance between two pads among a plurality of power or ground pads on a side of the die facing the first common electrode bar. An electronic device with the electronic package is also disclosed.
    Type: Application
    Filed: April 23, 2010
    Publication date: August 19, 2010
    Applicant: MEDIATEK INC.
    Inventors: Nan-Cheng Chen, Nan-Jang Chen, Ching-Chih Li