Patents by Inventor ZIQUAN FANG

ZIQUAN FANG 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: 20230275164
    Abstract: An image sensor and a method for forming the image sensor are provided. The method includes: providing a substrate; patterning the substrate to form a plurality of columnar structures configured in an array, wherein a first trench, a second trench, and a third trench are configured between adjacent columnar structures and respectively along a first direction, a second direction, and a third direction, side walls of the columnar structures perpendicular to the first direction are (110) crystal faces, and oblique sections of the columnar structures perpendicular to the third direction are (100) crystal faces; and forming a doped epitaxial layer in the first trench, the second trench and the cross trench. Therefore, for the image sensor, an upper part of the cross trench is improved with little defects after the cross trench is full filled, which can effectively reduce white pixels and thus improve the performance of the image sensor.
    Type: Application
    Filed: February 21, 2023
    Publication date: August 31, 2023
    Inventors: Jialong LI, Ziquan FANG, Xiao FAN, Han WANG, Guanglong CHEN, Wensheng QIAN
  • Publication number: 20230085878
    Abstract: A high-voltage isolation semiconductor device and a method for manufacturing the same. The method includes providing a first conductivity type substrate of a substrate layer; performing first conductivity type ion implantation by means of first implantation energy to form a first conductivity type buried layer part A; performing first conductivity type ion implantation by means of second implantation energy to form a first conductivity type buried layer part B primary structure, wherein the first implantation energy is greater than the second implantation energy; growing a second conductivity type epitaxial layer on the first conductivity type substrate, wherein the first conductivity type buried layer part B primary structure extends into the second conductivity type epitaxial layer to form a first conductivity type buried layer part B; and forming a first conductivity type well region by means of first conductivity type ion implantation.
    Type: Application
    Filed: August 10, 2022
    Publication date: March 23, 2023
    Applicant: Shanghai Huahong Grace Semiconductor Manufacturing Corporation
    Inventor: Ziquan FANG
  • Patent number: 10472788
    Abstract: A laboratory device to measure horizontal displacement of soil around a region treated by vacuum preloading includes a box injected with dredger fill. A vertical drainage board and a vacuum pumping tube are buried within soil in the treatment region in connection with a vacuum degree detector and a vacuum pump. A seal membrane covers soil in the treatment region. A loading device is above the seal membrane. Transverse tubes are inserted into a side of the box and in surrounding soil of the treatment region. An annular sensing source, which moves together with the soil and which is movable along the transverse tubes, sleeved on the transverse tubes. Each transverse tube is provided with a sensing instrument, and the sensing instrument is connected with a sensor is inserted into the transverse tube. The different positions of the sensing source at different moments of time are determined.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: November 12, 2019
    Assignee: WENZHOU UNIVERSITY
    Inventors: Jun Wang, Yuanqiang Cai, Hongtao Fu, Changxin Shi, Peng Wang, Junfeng Ni, Ziquan Fang
  • Patent number: 10370814
    Abstract: The present invention discloses a system for consolidating soft clay by combined anode boosting and electro-osmosis, comprising a vacuum preloading system, wherein the vacuum preloading system comprises anode tubes, cathode tubes, a power supply, a boosting device, sealing cloth and a pumping and drainage device; the sealing cloth is covered above soft clay; air vents are formed on side faces of the cathode tubes and the anode tubes; the cathode tubes and the anode tubes are connected to a boosted pumping and drainage pipe above the soft clay through pipelines; the boosted pumping and drainage pipe is configured with the boosting device and the pumping and drainage device; and, the anode tubes and the cathode tubes are connected to an anode and a cathode of the power supply, respectively. The present invention further provides a method for consolidating soft clay by using the system for consolidating soft clay by combined anode boosting and electro-osmosis.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 6, 2019
    Assignee: WENZHOU UNIVERSITY
    Inventors: Hongtao Fu, Jun Wang, Yuanqiang Cai, Huanhuan Qiao, Yawei Jin, Peng Wang, Junfeng Ni, Ziquan Fang, Jinqiang Jin, Youchang Lv, Haisheng Jin, Changchen Zhou
  • Patent number: 10272481
    Abstract: The present invention discloses a system for consolidating hydraulic reclamation silt by combined flocculation and deep boosted vacuum preloading, comprising an agitation tank, wherein the agitation tank is connected to a flocculant preparation tank and a slurry delivery device; a tank bottom valve and a filter plate mechanism are successively arranged at a lower delivery port of a precipitation zone of a dehydration tank; weep holes are formed on filter plates; there is a discharge zone below the precipitation zone of the dehydration tank; a drainage plate is provided on an upper side wall of the precipitation zone; a water storage coaming is provided outside the drainage plate; the water storage coaming and the drainage plate are enclosed to form a water storage zone; the water storage zone is connected to a reservoir via a second delivery pipe with a second delivery pump provided thereon; a water pumping port is provided within the discharge zone; the water pumping port is connected to the reservoir via a
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: April 30, 2019
    Assignee: WENZHOU UNIVERSITY
    Inventors: Yuanqiang Cai, Jun Wang, Hongtao Fu, Zhiwei Xie, Peng Wang, Junfeng Ni, Ziquan Fang, Haisheng Jin, Changchen Zhou, Jinqiang Jin, Youchang Lv
  • Publication number: 20180339325
    Abstract: The present invention discloses a system for consolidating hydraulic reclamation silt by combined flocculation and deep boosted vacuum preloading, comprising an agitation tank, wherein the agitation tank is connected to a flocculant preparation tank and a slurry delivery device; a tank bottom valve and a filter plate mechanism are successively arranged at a lower delivery port of a precipitation zone of a dehydration tank; weep holes are formed on filter plates; there is a discharge zone below the precipitation zone of the dehydration tank; a drainage plate is provided on an upper side wall of the precipitation zone; a water storage coaming is provided outside the drainage plate; the water storage coaming and the drainage plate are enclosed to form a water storage zone; the water storage zone is connected to a reservoir via a second delivery pipe with a second delivery pump provided thereon; a water pumping port is provided within the discharge zone; the water pumping port is connected to the reservoir via a
    Type: Application
    Filed: September 22, 2017
    Publication date: November 29, 2018
    Inventors: YUANQIANG CAI, JUN WANG, HONGTAO FU, ZHIWEI XIE, PENG WANG, JUNFENG NI, ZIQUAN FANG, HAISHENG JIN, CHANGCHEN ZHOU, JINQIANG JIN, YOUCHANG LV
  • Publication number: 20180340309
    Abstract: The present invention discloses a system for consolidating soft clay by combined anode boosting and electro-osmosis, comprising a vacuum preloading system, wherein the vacuum preloading system comprises anode tubes, cathode tubes, a power supply, a boosting device, sealing cloth and a pumping and drainage device; the sealing cloth is covered above soft clay; air vents are formed on side faces of the cathode tubes and the anode tubes; the cathode tubes and the anode tubes are connected to a boosted pumping and drainage pipe above the soft clay through pipelines; the boosted pumping and drainage pipe is configured with the boosting device and the pumping and drainage device; and, the anode tubes and the cathode tubes are connected to an anode and a cathode of the power supply, respectively. The present invention further provides a method for consolidating soft clay by using the system for consolidating soft clay by combined anode boosting and electro-osmosis.
    Type: Application
    Filed: September 22, 2017
    Publication date: November 29, 2018
    Inventors: HONGTAO FU, JUN WANG, YUANQIANG CAI, HUANHUAN QIAO, YAWEI JIN, PENG WANG, JUNFENG NI, ZIQUAN FANG, JINQIANG JIN, YOUCHANG LV, HAISHENG JIN, CHANGCHEN ZHOU
  • Publication number: 20180282966
    Abstract: The present invention discloses a device used in laboratories to measure horizontal displacement of soil around a region to be treated by vacuum preloading, comprising a box; dredger fill is injected into the box; a vertical drainage board and a vacuum pumping tube are buried within soil in the region to be treated, with the vacuum pumping tube being provided with a vacuum degree detector, the vacuum pumping tube being connected to the plastic drainage board and to a vacuum pump, and a seal membrane covering or wrapping soil in the region to be treated; a loading device is provided above the seal membrane to assist the drainage; transverse tubes are inserted into a side of the box, the transverse tubes being in surrounding soil of the region to be treated; an annular sensing source which is movable along the transverse tubes together with soil is sleeved on the transverse tubes; each of the transverse tubes is provided with a sensing instrument, and the sensing instrument is connected with a sensor which can
    Type: Application
    Filed: September 22, 2017
    Publication date: October 4, 2018
    Inventors: JUN WANG, YUANQIANG CAI, HONGTAO FU, CHANGXIN SHI, PENG WANG, JUNFENG NI, ZIQUAN FANG