Patents by Inventor Wenhu Liu

Wenhu 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: 11934549
    Abstract: One or more implementations of the present specification provide an invoice access method and apparatus based on a blockchain, and an electronic device. The method includes: generating first ciphertext data by encrypting plaintext data of the target invoice based on a first key corresponding to an invoice issuer; generating second ciphertext data by encrypting the plaintext data of the target invoice based on a second key corresponding to an invoice receiver; adding the first ciphertext data and an user identifier of the invoice issuer to the blockchain as related to one another; and adding the second ciphertext data and an user identifier of the invoice receiver to the blockchain as related to one another.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 19, 2024
    Assignee: Advance New Technologies Co., Ltd.
    Inventors: Hansong Xiao, Ping Zhang, Wenhu Kan, Qin Liu, Liangrong Lin, Fuxi Deng, Yixiang Zhang, Rui Chen, Jinming Duan
  • Publication number: 20190216583
    Abstract: Disclosed is an all-around full-automatic mouth holding type brushing-protecting integrated intelligent toothbrush. The toothbrush includes a crown, a host machine and a charging base; the host machine is arranged at a bottom of the crown; an adapter is arranged between the crown and the host machine; the crown and the adapter are connected via a stepped screw thread; the host machine and the adapter are connected via a clamping buckle. According to the all-around full-automatic mouth holding type brushing-protecting integrated intelligent toothbrush, the problems that the existing toothbrush has a long brushing time and needs to be held by a hand, and a toothbrush head cannot completely and accurately clean each position of teeth without a dead angle are effectively solved.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 18, 2019
    Inventors: Lirong Zhuo, Wenhu Liu, Sean Creaghan
  • Patent number: 10170437
    Abstract: A method of forming a stop layer to prevent dummy vias from connecting to a metal layer and the resulting device are provided. Embodiments include forming a first metal layer in a first dielectric layer; forming a second dielectric layer over a first Nblok layer formed over the first dielectric and first metal layers; forming a third dielectric layer over the second dielectric layer and a second Nblok layer formed over a portion of the second dielectric layer; forming a via and a plurality of vias through the third and second dielectric layers down to the second and first Nblok layers, respectively; removing portions of the second and first Nblok layers through the via and the plurality of vias down to the second dielectric layer and the first metal layer, respectively; removing portions of the third dielectric layer through each via; and filling each via with a second metal layer.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 1, 2019
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Ramasamy Chockalingam, Juan Boon Tan, Sung Mun Jung, Wenhu Liu, Ee Jan Khor
  • Patent number: 9911665
    Abstract: Integrated circuits, methods of forming integrated circuits, and methods of determining gate dielectric layer electrical thickness in integrated circuits are provided. An exemplary integrated circuit includes a semiconductor substrate including an active region and an STI structure disposed therein, adjacent to the active region. A first gate electrode structure overlies the active region and includes a first gate dielectric layer and a first gate electrode layer. A second gate electrode structure includes a second gate dielectric layer that overlies the first gate electrode layer and a second gate electrode layer that overlies the second gate dielectric layer. A source and drain region are formed in the active region, adjacent to the first gate electrode structure. First electrical interconnects are in electrical communication with the source and drain regions. A second electrical interconnect is in electrical communication with the first gate electrode layer.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 6, 2018
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Wenhu Liu, Sung Mun Jung, Yi Tat Lim, Ling Wu
  • Publication number: 20160190021
    Abstract: Integrated circuits, methods of forming integrated circuits, and methods of determining gate dielectric layer electrical thickness in integrated circuits are provided. An exemplary integrated circuit includes a semiconductor substrate including an active region and an STI structure disposed therein, adjacent to the active region. A first gate electrode structure overlies the active region and includes a first gate dielectric layer and a first gate electrode layer. A second gate electrode structure includes a second gate dielectric layer that overlies the first gate electrode layer and a second gate electrode layer that overlies the second gate dielectric layer. A source and drain region are formed in the active region, adjacent to the first gate electrode structure. First electrical interconnects are in electrical communication with the source and drain regions. A second electrical interconnect is in electrical communication with the first gate electrode layer.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Inventors: Wenhu Liu, Sung Mun Jung, Yi Tat Lim, Ling Wu
  • Patent number: 9024286
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 5, 2015
    Assignees: GLOBALFOUNDRIES Singapore PTE Ltd, Nanyang Technological University
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng
  • Publication number: 20140077148
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicants: Nanyang Technological University, Globalfoundries Singapore PTE Ltd
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng
  • Publication number: 20120241710
    Abstract: Generally, the subject matter disclosed herein relates to the fabrication of an RRAM cell using CMOS compatible processes. A resistance random access memory device is disclosed which includes a semiconducting substrate, a top electrode, at least one metal silicide bottom electrode formed at least partially in the substrate, wherein at least a portion of the at least one bottom electrode is positioned below the top electrode, and at least one insulating layer positioned between the top electrode and at least a portion of the at least one bottom electrode.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 27, 2012
    Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, GLOBALFOUNDRIES SINGAPORE PTE LTD
    Inventors: Wenhu Liu, Kin-Leong Pey, Nagarajan Raghavan, Chee Mang Ng