Patents by Inventor Zengyu Zhou

Zengyu Zhou 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: 11917761
    Abstract: A surface mount device having features on contacts to prevent the surface mount device from tombstoning. The feature may be channel defined by the contact that helps balance a torque/force applied on each side of the surface mount device during a reflow soldering process. The feature may also be a solder mask that helps balance a torque/force applied on each side of the surface mount device during a reflow soldering process.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: February 27, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Joyce Chen, Lynn Lin, Emma Wang, Linda Huang, Cong Zhang, Zengyu Zhou, Juan Zhou
  • Patent number: 11810896
    Abstract: A method and apparatus for substrate component layout and bonding for increased package capacity. According to certain embodiments, a wire-bonding finger strip is disposed between a flip-chip die and a NAND die stack to reduce a keep out zone (KOZ) required for an underfill material dispensed beneath the flip-chip die. To further inhibit the flow of the underfill material and further reduce the KOZ, a solder mask may be placed adjacent to the flip-chip. According to certain embodiments, there may be at least three sides of the flip-chip that may have such an adjacent solder mask placement. The three sides of the flip-chip according to such embodiments may be those non-adjacent to the wire-bonding finger strip.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: November 7, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Jiandi Du, Zengyu Zhou, Rui Yuan, Fen Yu, Hope Chiu
  • Patent number: 11784135
    Abstract: A semiconductor device has shielding to prevent transmission and/or reception of EMI and/or RFI radiation. The semiconductor device comprises a substrate including grounded contact pads around a periphery of the substrate, exposed at one or more edges of the substrate. A bump made of gold or other non-oxidizing conductive material may be formed on the contact pads, for example using ultrasonic welding to remove an oxidation layer between the contact pads and the conductive bumps. The conductive bumps electrically couple to a conductive coating applied around the periphery of the semiconductor device.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: October 10, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Jiandi Du, Binbin Zheng, Rui Guo, Chin-Tien Chiu, Zengyu Zhou, Fen Yu
  • Publication number: 20230299034
    Abstract: A semiconductor device package includes a semiconductor die including bond pads and an underfill inlet side, a substrate including a first metal layer and lower metal layers underneath the first metal layer, a plurality of metal contacts and trace segment lines disposed in the first metal layer, and a plurality of solder bump rows. Each of the solder bump rows is oriented substantially parallel to the inlet side of the semiconductor die and electrically connects bond pads of the semiconductor die with corresponding metal contacts in the first metal layer of the substrate. Each of the trace segment lines is oriented substantially parallel to the inlet side of the semiconductor die, is electrically coupled to a respective solder bump row of the plurality of solder bump rows, and includes trace segments disposed in the first metal layer and trace segments disposed in one or more of the lower metal layers.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 21, 2023
    Applicant: Western Digital Technologies, Inc.
    Inventors: Yihao Chen, Tim Huang, Zengyu Zhou, Rui Yuan, Fen Yu, Hope Chiu
  • Publication number: 20230284388
    Abstract: A surface mount device having features on contacts to prevent the surface mount device from tombstoning. The feature may be channel defined by the contact that helps balance a torque/force applied on each side of the surface mount device during a reflow soldering process. The feature may also be a solder mask that helps balance a torque/force applied on each side of the surface mount device during a reflow soldering process.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 7, 2023
    Inventors: Joyce Chen, Lynn Lin, Emma Wang, Linda Huang, Cong Zhang, Zengyu Zhou, Juan Zhou
  • Publication number: 20220406726
    Abstract: A semiconductor device has shielding to prevent transmission and/or reception of EMI and/or RFI radiation. The semiconductor device comprises a substrate including grounded contact pads around a periphery of the substrate, exposed at one or more edges of the substrate. A bump made of gold or other non-oxidizing conductive material may be formed on the contact pads, for example using ultrasonic welding to remove an oxidation layer between the contact pads and the conductive bumps. The conductive bumps electrically couple to a conductive coating applied around the periphery of the semiconductor device.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 22, 2022
    Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Jiandi Du, Binbin Zheng, Rui Guo, Chin-Tien Chiu, Zengyu Zhou, Fen Yu
  • Publication number: 20220375896
    Abstract: A method and apparatus for substrate component layout and bonding for increased package capacity. According to certain embodiments, a wire-bonding finger strip is disposed between a flip-chip die and a NAND die stack to reduce a keep out zone (KOZ) required for an underfill material dispensed beneath the flip-chip die. To further inhibit the flow of the underfill material and further reduce the KOZ, a solder mask may be placed adjacent to the flip-chip. According to certain embodiments, there may be at least three sides of the flip-chip that may have such an adjacent solder mask placement. The three sides of the flip-chip according to such embodiments may be those non-adjacent to the wire-bonding finger strip.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Jiandi DU, Zengyu ZHOU, Rui YUAN, Fen YU, Hope CHIU
  • Publication number: 20220285316
    Abstract: A memory device includes a substrate, a controller die, a flip chip die, first and second silicon dies, and bond wires. The controller and flip chip dies are attached to the substrate using connection balls and in electrical communication with each other. The first and second silicon dies include respective first and second contact pad surfaces. The bond wires electrically connect the contact pad surfaces to the substrate so the first and second silicon dies communicate with the controller die. The flip chip die and first and second silicon dies are NAND dies, the flip chip die is configured as SLC memory, and the silicon dies are configured as one of MLC memory, TLC memory, or QLC memory.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 8, 2022
    Inventors: Rui Yuan, Hope Chiu, Paul Qu, Kevin Du, Zengyu Zhou, Yi Su, Shixing Zhu
  • Publication number: 20220093559
    Abstract: A packaged semiconductor includes a substrate and a first component disposed on the substrate. The package includes an underfill that is dispensed under and around the first component. The package also includes a second component disposed on the substrate adjacent to the first component that provides a border to the underfill.
    Type: Application
    Filed: September 22, 2020
    Publication date: March 24, 2022
    Applicant: Western Digital Technologies, Inc.
    Inventors: Kevin Du, Hope Chiu, Zengyu Zhou, Alex Zhang, Vincent Jiang, Shixing Zhu, Paul Qu, Yi Su, Rui Yuan
  • Patent number: 11031378
    Abstract: A semiconductor device is disclosed including a controller die and a memory module. The controller die may be a heterogeneous integrated controller die having ASIC logic circuits, memory array logic circuits and a cache structure. In examples, the memory module may have continuously formed through silicon vias in a face-up or face-down configuration.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: June 8, 2021
    Assignee: Western Digital Technologies, Inc.
    Inventors: Yazhou Zhang, Chin-Tien Chiu, Zengyu Zhou
  • Publication number: 20200411479
    Abstract: A semiconductor device is disclosed including a controller die and a memory module. The controller die may be a heterogeneous integrated controller die having ASIC logic circuits, memory array logic circuits and a cache structure. In examples, the memory module may have continuously formed through silicon vias in a face-up or face-down configuration.
    Type: Application
    Filed: March 13, 2020
    Publication date: December 31, 2020
    Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Yazhou Zhang, Chin-Tien Chiu, Zengyu Zhou
  • Patent number: 10236276
    Abstract: A semiconductor device is disclosed including at least first and second vertically stacked and interconnected groups of semiconductor packages. The first and second groups of semiconductor packages may differ from each other in the number of packages and functionality.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: March 19, 2019
    Assignee: SanDisk Information Technology (Shanghai) Co., Ltd.
    Inventors: Yangming Liu, Chin-Tien Chiu, Zhongli Ji, Shaopeng Dong, Zengyu Zhou
  • Patent number: 10177119
    Abstract: A semiconductor package is disclosed including a number of stacked semiconductor die, electrically connected to each other with wire bonds. The stacked semiconductor die are provided in a mold compound such that a spacing exists between a top die in the die stack and a surface of the mold compound. The wire bonds to the top die may be provided in the spacing. An RDL pad is affixed to the surface of the mold compound. Columns of bumps may be formed on the die bond pads of the top die in the die stack to electrically couple the RDL pad to the die stack across the spacing.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: January 8, 2019
    Assignee: SanDisk Information Technology (Shanghai) Co., Ltd.
    Inventors: Cong Zhang, Fuqiang Xiao, Bin Xu, Haijun Wu, Chin Tien Chiu, Zengyu Zhou
  • Publication number: 20180294251
    Abstract: A semiconductor device is disclosed including at least first and second vertically stacked and interconnected groups of semiconductor packages. The first and second groups of semiconductor packages may differ from each other in the number of packages and functionality.
    Type: Application
    Filed: June 12, 2017
    Publication date: October 11, 2018
    Applicant: SANDISK INFORMATION TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Yangming Liu, Chin-Tien Chiu, Zhongli Ji, Shaopeng Dong, Zengyu Zhou
  • Publication number: 20180019228
    Abstract: A semiconductor package is disclosed including a number of stacked semiconductor die, electrically connected to each other with wire bonds. The stacked semiconductor die are provided in a mold compound such that a spacing exists between a top die in the die stack and a surface of the mold compound. The wire bonds to the top die may be provided in the spacing. An RDL pad is affixed to the surface of the mold compound. Columns of bumps may be formed on the die bond pads of the top die in the die stack to electrically couple the RDL pad to the die stack across the spacing.
    Type: Application
    Filed: June 12, 2017
    Publication date: January 18, 2018
    Applicant: SANDISK INFORMATION TECHNOLOGY (SHANGHAI) CO., LTD .
    Inventors: Cong Zhang, Fuqiang Xiao, Bin Xu, Haijun Wu, Chin Tien Chiu, Zengyu Zhou