Patents by Inventor Hung-Wen Liu

Hung-Wen Liu 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: 12211798
    Abstract: A semiconductor device assembly includes a first remote distribution layer (RDL), the first RDL comprising a lower outermost planar surface of the semiconductor device assembly; a first semiconductor die directly coupled to an upper surface of the first RDL by a first plurality of interconnects; a second RDL, the second RDL comprising an upper outermost planar surface of the semiconductor device assembly opposite the lower outermost planar surface; a second semiconductor die directly coupled to a lower surface of the second RDL by a second plurality of interconnects; an encapsulant material disposed between the first RDL and the second RDL and at least partially encapsulating the first and second semiconductor dies; and a third plurality of interconnects extending fully between and directly coupling the upper surface of the first RDL and the lower surface of the second RDL.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: January 28, 2025
    Assignee: Micron Technology, Inc.
    Inventor: Hung Wen Liu
  • Publication number: 20250015006
    Abstract: A semiconductor device assembly includes a first remote distribution layer (RDL), the first RDL comprising a lower outermost planar surface of the semiconductor device assembly; a first semiconductor die directly coupled to an upper surface of the first RDL by a first plurality of interconnects; a second RDL, the second RDL comprising an upper outermost planar surface of the semiconductor device assembly opposite the lower outermost planar surface; a second semiconductor die directly coupled to a lower surface of the second RDL by a second plurality of interconnects; an encapsulant material disposed between the first RDL and the second RDL and at least partially encapsulating the first and second semiconductor dies; and a third plurality of interconnects extending fully between and directly coupling the upper surface of the first RDL and the lower surface of the second RDL.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 9, 2025
    Inventor: Hung Wen Liu
  • Patent number: 11710702
    Abstract: A semiconductor device assembly includes a first remote distribution layer (RDL), the first RDL comprising a lower outermost planar surface of the semiconductor device assembly; a first semiconductor die directly coupled to an upper surface of the first RDL by a first plurality of interconnects; a second RDL, the second RDL comprising an upper outermost planar surface of the semiconductor device assembly opposite the lower outermost planar surface; a second semiconductor die directly coupled to a lower surface of the second RDL by a second plurality of interconnects; an encapsulant material disposed between the first RDL and the second RDL and at least partially encapsulating the first and second semiconductor dies; and a third plurality of interconnects extending fully between and directly coupling the upper surface of the first RDL and the lower surface of the second RDL.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 25, 2023
    Assignee: Micron Technology, Inc.
    Inventor: Hung Wen Liu
  • Publication number: 20210384134
    Abstract: A semiconductor device assembly includes a first remote distribution layer (RDL), the first RDL comprising a lower outermost planar surface of the semiconductor device assembly; a first semiconductor die directly coupled to an upper surface of the first RDL by a first plurality of interconnects; a second RDL, the second RDL comprising an upper outermost planar surface of the semiconductor device assembly opposite the lower outermost planar surface; a second semiconductor die directly coupled to a lower surface of the second RDL by a second plurality of interconnects; an encapsulant material disposed between the first RDL and the second RDL and at least partially encapsulating the first and second semiconductor dies; and a third plurality of interconnects extending fully between and directly coupling the upper surface of the first RDL and the lower surface of the second RDL.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 9, 2021
    Inventor: Hung Wen Liu
  • Patent number: 10966797
    Abstract: An imaging system includes an image generating device and two reflecting mirrors. The image generating device projects a light toward a gravity direction. The two reflecting mirrors are disposed with respect to each other and one of the two reflecting mirrors is disposed with respect to the image generating device. The light projected by the image generating device forms a virtual image through the two reflecting mirrors in sequence.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: April 6, 2021
    Assignee: Qisda Corporation
    Inventors: Tsung-Hsun Wu, Ming-Kuen Lin, Hung-Wen Liu
  • Publication number: 20200345450
    Abstract: An imaging system includes an image generating device and two reflecting mirrors. The image generating device projects a light toward a gravity direction. The two reflecting mirrors are disposed with respect to each other and one of the two reflecting mirrors is disposed with respect to the image generating device. The light projected by the image generating device forms a virtual image through the two reflecting mirrors in sequence.
    Type: Application
    Filed: March 26, 2020
    Publication date: November 5, 2020
    Inventors: Tsung-Hsun Wu, Ming-Kuen Lin, Hung-Wen Liu
  • Publication number: 20170236783
    Abstract: The present invention provides a package structure and fabrication method thereof. The method includes providing a first carrier having a metal layer; forming a dielectric layer on the metal layer; forming a plurality of conductive pillars embedded into the dielectric layer and protruding from a surface of the dielectric layer, and disposing an electronic component on the surface of the dielectric layer; forming an encapsulating layer on the dielectric layer to encompass the plurality of conductive pillars, the dielectric layer and the electronic component; removing a portion of the encapsulating layer and the first carrier such that two ends of each of the plurality of conductive pillars are exposed from the encapsulating layer and the dielectric layer. Therefore, the present invention effectively reduces manufacturing costs and the need for an opening process while manufacturing the conductive pillars can be eliminated.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 17, 2017
    Inventors: Yi-Wei Liu, Yan-Heng Chen, Mao-Hua Yeh, Hung-Wen Liu, Yi-Che Lai
  • Patent number: 9666536
    Abstract: The present invention provides a package structure and fabrication method thereof. The method includes providing a first carrier having a metal layer; forming a dielectric layer on the metal layer; forming a plurality of conductive pillars embedded into the dielectric layer and protruding from a surface of the dielectric layer, and disposing an electronic component on the surface of the dielectric layer; forming an encapsulating layer on the dielectric layer to encompass the plurality of conductive pillars, the dielectric layer and the electronic component; removing a portion of the encapsulating layer and the first carrier such that two ends of each of the plurality of conductive pillars are exposed from the encapsulating layer and the dielectric layer. Therefore, the present invention effectively reduces manufacturing costs and the need for an opening process while manufacturing the conductive pillars can be eliminated.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 30, 2017
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Yi-Wei Liu, Yan-Heng Chen, Mao-Hua Yeh, Hung-Wen Liu, Yi-Che Lai
  • Patent number: 9607974
    Abstract: A method for fabricating a package structure is provided, which includes: providing a first carrier having a circuit layer thereon; forming a plurality of conductive posts on the circuit layer and disposing at least an electronic element on the first carrier; forming an encapsulant on the first carrier to encapsulate the conductive posts, the circuit layer and the electronic element; and removing the first carrier, thereby dispensing with the conventional hole opening process for forming the conductive posts and hence reducing the fabrication costs.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 28, 2017
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chun-Tang Lin, Shih-Ching Chen, Yi-Che Lai, Hong-Da Chang, Hung-Wen Liu, Yi-Wei Liu, Hsi-Chang Hsu
  • Patent number: 9397081
    Abstract: A semiconductor package is disclosed, which includes: a carrier having at least an opening; a plurality of conductive traces formed on the carrier and in the opening; a first semiconductor element disposed in the opening and electrically connected to the conductive traces; a second semiconductor element disposed on the first semiconductor element in the opening; and a redistribution layer structure formed on the carrier and the second semiconductor element for electrically connecting the conductive traces and the second semiconductor element. Since the semiconductor elements are embedded and therefore positioned in the opening of the carrier, the present invention eliminates the need to perform a molding process before forming the redistribution layer structure and prevents the semiconductor elements from displacement.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: July 19, 2016
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Yan-Yi Liao, Hung-Wen Liu, Chieh-Yuan Chi, Hsi-Chang Hsu
  • Publication number: 20160190099
    Abstract: The present invention provides a package structure and fabrication method thereof. The method includes providing a first carrier having a metal layer; forming a dielectric layer on the metal layer; forming a plurality of conductive pillars embedded into the dielectric layer and protruding from a surface of the dielectric layer, and disposing an electronic component on the surface of the dielectric layer; forming an encapsulating layer on the dielectric layer to encompass the plurality of conductive pillars, the dielectric layer and the electronic component; removing a portion of the encapsulating layer and the first carrier such that two ends of each of the plurality of conductive pillars are exposed from the encapsulating layer and the dielectric layer. Therefore, the present invention effectively reduces manufacturing costs and the need for an opening process while manufacturing the conductive pillars can be eliminated.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 30, 2016
    Inventors: Yi-Wei Liu, Yan-Heng Chen, Mao-Hua Yeh, Hung-Wen Liu, Yi-Che Lai
  • Publication number: 20160141227
    Abstract: A method for fabricating a package structure is provided, which includes: providing a first carrier having a circuit layer thereon; forming a plurality of conductive posts on the circuit layer and disposing at least an electronic element on the first carrier; forming an encapsulant on the first carrier to encapsulate the conductive posts, the circuit layer and the electronic element; and removing the first carrier, thereby dispensing with the conventional hole opening process for forming the conductive posts and hence reducing the fabrication costs.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Chun-Tang Lin, Shih-Ching Chen, Yi-Che Lai, Hong-Da Chang, Hung-Wen Liu, Yi-Wei Liu, Hsi-Chang Hsu
  • Publication number: 20160141281
    Abstract: A semiconductor package is disclosed, which includes: a carrier having at least an opening; a plurality of conductive traces formed on the carrier and in the opening; a first semiconductor element disposed in the opening and electrically connected to the conductive traces; a second semiconductor element disposed on the first semiconductor element in the opening; and a redistribution layer structure formed on the carrier and the second semiconductor element for electrically connecting the conductive traces and the second semiconductor element. Since the semiconductor elements are embedded and therefore positioned in the opening of the carrier, the present invention eliminates the need to perform a molding process before forming the redistribution layer structure and prevents the semiconductor elements from displacement.
    Type: Application
    Filed: October 2, 2015
    Publication date: May 19, 2016
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Yan-Yi Liao, Hung-Wen Liu, Chieh-Yuan Chi, Hsi-Chang Hsu
  • Patent number: 9224646
    Abstract: Disclosed is a method for fabricating a semiconductor package, including providing a package unit having an insulating layer and at least a semiconductor element embedded into the insulating layer, wherein the semiconductor element is exposed from the insulting layer and a plurality of recessed portions formed in the insulating layer; and electrically connecting a redistribution structure to the semiconductor element. The formation of the recessed portions release the stress of the insulating layer and prevent warpage of the insulating layer from taking place.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: December 29, 2015
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Chieh-Yuan Chi, Hung-Wen Liu
  • Patent number: 9177859
    Abstract: A semiconductor package is disclosed, which includes: a carrier having at least an opening; a plurality of conductive traces formed on the carrier and in the opening; a first semiconductor element disposed in the opening and electrically connected to the conductive traces; a second semiconductor element disposed on the first semiconductor element in the opening; and a redistribution layer structure formed on the carrier and the second semiconductor element for electrically connecting the conductive traces and the second semiconductor element. Since the semiconductor elements are embedded and therefore positioned in the opening of the carrier, the present invention eliminates the need to perform a molding process before forming the redistribution layer structure and prevents the semiconductor elements from displacement.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: November 3, 2015
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Yan-Yi Liao, Hung-Wen Liu, Chieh-Yuan Chi, Hsi-Chang Hsu
  • Publication number: 20140342506
    Abstract: Disclosed is a method for fabricating a semiconductor package, including providing a package unit having an insulating layer and at least a semiconductor element embedded into the insulating layer, wherein the semiconductor element is exposed from the insulting layer and a plurality of recessed portions formed in the insulating layer; and electrically connecting a redistribution structure to the semiconductor element. The formation of the recessed portions release the stress of the insulating layer and prevent warpage of the insulating layer from taking place.
    Type: Application
    Filed: January 2, 2014
    Publication date: November 20, 2014
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Chieh-Yuan Chi, Hung-Wen Liu
  • Publication number: 20140332976
    Abstract: A semiconductor package is disclosed, which includes: a carrier having at least an opening; a plurality of conductive traces formed on the carrier and in the opening; a first semiconductor element disposed in the opening and electrically connected to the conductive traces; a second semiconductor element disposed on the first semiconductor element in the opening; and a redistribution layer structure formed on the carrier and the second semiconductor element for electrically connecting the conductive traces and the second semiconductor element. Since the semiconductor elements are embedded and therefore positioned in the opening of the carrier, the present invention eliminates the need to perform a molding process before forming the redistribution layer structure and prevents the semiconductor elements from displacement.
    Type: Application
    Filed: August 29, 2013
    Publication date: November 13, 2014
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Yan-Heng Chen, Chun-Tang Lin, Yan-Yi Liao, Hung-Wen Liu, Chieh-Yuan Chi, Hsi-Chang Hsu
  • Patent number: 8828796
    Abstract: A semiconductor package and a method of manufacturing the same are provided, the semiconductor package including a first package unit having a first encapsulant and a first semiconductor element, a second package unit having a second encapsulant and a second semiconductor element, a supporting member interposed between the first and second encapsulant, a plurality of conductors penetrating the first encapsulant, the supporting member and the second encapsulant, and redistribution structures disposed on the first and second encapsulants, wherein the first and second encapsulants are coupled with each other by the supporting member to provide sufficient support and protection to enhance the structure strength of the first and second package units.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: September 9, 2014
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Chieh-Yuan Chi, Wei-Yu Chen, Hung-Wen Liu, Yan-Heng Chen, Hsi-Chang Hsu
  • Patent number: 8766456
    Abstract: A method of fabricating a semiconductor package is provided, including: disposing a semiconductor element on a carrier; forming an encapsulant on the carrier to encapsulant the semiconductor element; forming at least one through hole penetrating the encapsulant; forming a hollow conductive through hole in the through hole and, at the same time, forming a circuit layer on an active surface of the semiconductor element and the encapsulant; forming an insulating layer on the circuit layer; and removing the carrier. By forming the conductive through hole and the circuit layer simultaneously, the invention eliminates the need to form a dielectric layer before forming the circuit layer and dispenses with the conventional chemical mechanical polishing (CMP) process, thus greatly improving the fabrication efficiency.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 1, 2014
    Assignee: Siliconware Precision Industries Co., Ltd.
    Inventors: Hsi-Chang Hsu, Hsin-Hung Chou, Hung-Wen Liu, Hsin-Yi Liao, Chiang-Cheng Chang
  • Publication number: 20140042638
    Abstract: A semiconductor package is provided, which includes: a soft layer having opposite first and second surfaces and first conductive through hole vias; a chip embedded in the soft layer and having an active surface exposed from the first surface of the soft layer; a support layer formed on the second surface of the soft layer and having second conductive through hole vias in electrical connection with the first conductive through hole vias; a first RDL structure formed on the first surface of the soft layer and electrically connected to the active surface of the chip; and a second RDL structure formed on the support layer and electrically connected to the first RDL structure through the first and second conductive through hole vias. The invention prevents package warpage by providing the support layer, and allows disposing of other packages or electronic elements by electrically connecting the RDL structures through the conductive through hole vias.
    Type: Application
    Filed: October 30, 2012
    Publication date: February 13, 2014
    Applicant: SILICONWARE PRECISION INDUSTRIES CO., LTD.
    Inventors: Hung-Wen Liu, Hsi-Chang Hsu, Hsin-Hung Chou, Hsin-Yi Liao, Chiang-Cheng Chang