Patents by Inventor WU YI

WU YI 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: 20220165751
    Abstract: A method for forming 3-dimensional vertical NOR-type memory string arrays uses damascene local bit lines is provided. The method of the present invention also avoids ribboning by etching local word lines in two steps. By etching the local word lines in two steps, the aspect ratio in the patterning and etching of stack of local word lines (“word line stacks”) is reduced, which improves the structural stability of the word line stacks.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Inventors: Scott Brad Herner, Wu-Yi Henry Chien, Jie Zhou, Eli Harari
  • Publication number: 20220118631
    Abstract: A head of chip picker is disclosed. The head has a clipping seat and an elastic block. The clipping seat has a body and two arms. The arms are respectively and downwardly extended from two opposite sides of an inner top surface of the body, so a cavity with a wide-top and narrow-bottom shape is constituted among the inner top surface and the arms. The elastic block matches the cavity and is laterally inserted into the cavity. The elastic block is not deformed after inserting into the cavity and provides a flat bottom surface.
    Type: Application
    Filed: February 24, 2021
    Publication date: April 21, 2022
    Applicant: Powertech Technology Inc.
    Inventors: Wu-Yi CHOU, Kun-Chi HSU, Chin-Ta WU, Yung-Chin SHIH, Chin Cheng LIU, Jentung TSENG
  • Patent number: 11309331
    Abstract: A method addresses low cost, low resistance metal interconnects and mechanical stability in a high aspect ratio structure. According to the various implementations disclosed herein, a replacement metal process, which defers the need for a metal etching step in the fabrication process until after all patterned photoresist is no longer present. Under this process, the conductive sublayers may be both thick and numerous. The present invention also provides for a strut structure which facilitates etching steps on high aspect ratio structures, which enhances mechanical stability in a high aspect ratio memory stack.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 19, 2022
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Scott Brad Herner, Wu-Yi Henry Chien
  • Publication number: 20220111104
    Abstract: An intelligent full-time sterilization lighting device is disclosed. It contains an external casing, a plurality of ultraviolet sterilization light source, an airflow driving module and control module. Based on the designs of the air channel portion, the air inlet portion and the air outlet portion external casing, it is allowed to hide the ultraviolet sterilization light source in the air channel portion. It can sterilize the airflow introduced by the airflow driving module without harming the surrounding people. Indoor lighting can be provided under the external casing. In addition, the shape of the external casing can be designed according to the size of the calcium silicate board of the existing light steel frame. It is easy to install on light steel frame.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 14, 2022
    Inventors: SHIH FONG LIN, WU YI HSU
  • Patent number: 11282855
    Abstract: A method for forming 3-dimensional vertical NOR-type memory string arrays uses damascene local bit lines is provided. The method of the present invention also avoids ribboning by etching local word lines in two steps. By etching the local word lines in two steps, the aspect ratio in the patterning and etching of stack of local word lines (“word line stacks”) is reduced, which improves the structural stability of the word line stacks.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: March 22, 2022
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Scott Brad Herner, Wu-Yi Henry Chien, Jie Zhou, Eli Harari
  • Publication number: 20220047761
    Abstract: An illumination lamp system having automatic switching function for sterilization is disclosed. It contains a plurality of germicidal lighting lamp assemblies, a personnel counter, a data receiving indicator, and an ultraviolet indicator. Each germicidal lighting lamp assembly includes a lamp panel, an infrared human body sensor and a control module. The control module includes a power conversion unit, a synchronization interface, a startup circuit, a first microcontroller, and an output and input connection interface. Because the infrared human body sensor can detect the appearance of people in real time, with a synchronous voltage to switch emitting between illumination LED strips and ultraviolet germicidal light sources, in addition to effectively expanding the disinfection area, it can also safely adjust the type of light to achieve the automatic switching function for sterilization.
    Type: Application
    Filed: April 1, 2021
    Publication date: February 17, 2022
    Inventors: SHIH FONG LIN, WU YI HSU, CHIA-HSIEN CHOU
  • Publication number: 20220037356
    Abstract: A process for manufacturing a 3-dimensional memory structure includes: (a) providing one or more active layers over a planar surface of a semiconductor substrate, each active layer comprising (i) first and second semiconductor layers of a first conductivity; (ii) a dielectric layer separating the first and second semiconductor layer; and (ii) one or more sacrificial layers, at least one of sacrificial layers being adjacent the first semiconductor layer; (b) etching the active layers to create a plurality of active stacks and a first set of trenches each separating and exposing sidewalls of adjacent active stacks; (c) filling the first set of trenches by a silicon oxide; (d) patterning and etching the silicon oxide to create silicon oxide columns each abutting adjacent active stacks and to expose portions of one or more sidewalls of the active stacks; (e) removing the sacrificial layers from exposed portions of the sidewalls by isotropic etching through the exposed portions of the sidewalls of the active stack
    Type: Application
    Filed: October 14, 2021
    Publication date: February 3, 2022
    Inventors: Eli Harari, Scott Brad Herner, Wu-Yi Chien
  • Publication number: 20220028871
    Abstract: A thin-film storage transistor in a NOR memory string has a gate dielectric layer that includes a silicon oxide nitride (SiON) tunnel dielectric layer. In one embodiment, the SiON tunnel dielectric layer has a thickness between 0.5 to 5.0 nm thick and an index of refraction between 1.5 and 1.9. The SiON tunnel dielectric layer may be deposited at between 720° C. and 900° C. and between 100 and 800 mTorr vapor pressure, using an LPCVD technique under DCS, N2O, and NH3 gas flows. The SiON tunnel dielectric layer may have a nitrogen content of 1-30 atomic percent (at %).
    Type: Application
    Filed: October 5, 2021
    Publication date: January 27, 2022
    Inventors: Scott Brad Herner, Christopher J. Petti, George Samachisa, Wu-Yi Henry Chien
  • Publication number: 20220025532
    Abstract: A memory structure formed above a semiconductor substrate includes two or more modules each formed on top of each other separated by a layer of global interconnect conductors. Each memory module may include a 3-dimensional array of memory transistors organized as NOR array strings. Each 3-dimensional array of memory transistors is provided vertical local word lines as gate electrodes to the memory transistors. These vertical local word lines are connected by the layers of global interconnect conductors below and above the 3-dimensional array of memory transistors to circuitry formed in the semiconductor substrate.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Applicant: Sunrise Memory Corporation
    Inventors: Eli Harari, Wu-Yi Chien
  • Patent number: 11217600
    Abstract: In the highly efficient fabrication processes for HNOR arrays provided herein, the channel regions of the storage transistors in the HNOR arrays are protected by a protective layer after deposition until the subsequent deposition of a charge-trapping material before forming local word lines. Both the silicon for the channel regions and the protective material may be deposited in amorphous form and are subsequently crystallized in an anneal step. The protective material may be silicon boron, silicon carbon or silicon germanium. The protective material induces greater grain boundaries in the crystallized silicon in the channel regions, thereby providing greater charge carrier mobility, greater conductivity and greater current densities.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 4, 2022
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Vinod Purayath, Wu-Yi Henry Chien
  • Patent number: 11180861
    Abstract: A memory structure formed above a semiconductor substrate includes two or more modules each formed on top of each other separated by a layer of global interconnect conductors. Each memory module may include a 3-dimensional array of memory transistors organized as NOR array strings. Each 3-dimensional array of memory transistors is provided vertical local word lines as gate electrodes to the memory transistors. These vertical local word lines are connected by the layers of global interconnect conductors below and above the 3-dimensional array of memory transistors to circuitry formed in the semiconductor substrate.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: November 23, 2021
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Wu-Yi Chien
  • Patent number: 11177281
    Abstract: A process for manufacturing a 3-dimensional memory structure includes: (a) providing one or more active layers over a planar surface of a semiconductor substrate, each active layer comprising (i) first and second semiconductor layers of a first conductivity; (ii) a dielectric layer separating the first and second semiconductor layer; and (ii) one or more sacrificial layers, at least one of sacrificial layers being adjacent the first semiconductor layer; (b) etching the active layers to create a plurality of active stacks and a first set of trenches each separating and exposing sidewalls of adjacent active stacks; (c) filling the first set of trenches by a silicon oxide; (d) patterning and etching the silicon oxide to create silicon oxide columns each abutting adjacent active stacks and to expose portions of one or more sidewalls of the active stacks; (e) removing the sacrificial layers from exposed portions of the sidewalls by isotropic etching through the exposed portions of the sidewalls of the active stack
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: November 16, 2021
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Scott Brad Herner, Wu-Yi Chien
  • Publication number: 20210320182
    Abstract: A thin-film memory transistor includes a source region, a drain region, a channel region, a gate electrode, and a charge-trapping layer provided between the channel region and the gate electrode and electrically isolated therefrom, wherein the charge-trapping layer has includes a number of charge-trapping sites that is 70% occupied or evacuated using a single voltage pulse of a predetermined width of 500 nanoseconds or less and a magnitude of 15.0 volts or less. The charge-trapping layer comprises silicon-rich nitride may have a refractive index of 2.05 or greater or comprises nano-crystals of germanium (Ge), zirconium oxide (ZrO2), or zinc oxide (ZnO). The thin-film memory transistor may be implemented, for example, in a 3-dimensional array of NOR memory strings formed above a planar surface of a semiconductor substrate.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Inventors: Wu-Yi Henry Chien, Scott Brad Herner, Eli Harari
  • Publication number: 20210313348
    Abstract: A method to ease the fabrication of high aspect ratio three dimensional memory structures for memory cells with feature sizes of 20 nm or less, or with a high number of memory layers. The present invention also provides an improved isolation between adjacent memory cells along the same or opposite sides of an active strip. The improved isolation is provided by introducing a strong dielectric barrier film between adjacent memory cells along the same side of an active strip, and by staggering memory cells of opposite sides of the active strip.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Applicant: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Wu-Yi Henry Chien, Scott Brad Herner
  • Publication number: 20210280605
    Abstract: A thin-film storage transistor includes (a) first and second semiconductor regions comprising polysilicon of a first conductivity; and (b) a channel region between the first and second semiconductor regions, the channel region comprising single-crystal epitaxial grown silicon, and wherein the thin-film storage transistor is formed above a moncrystlline semiconductor substrate.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: SUNRISE MEMORY CORPORATION
    Inventors: Chenming Hu, Wu-Yi Henry Chien, Eli Harari
  • Publication number: 20210226071
    Abstract: A storage transistor has a tunnel dielectric layer and a charge-trapping layer between a channel region and a gate electrode, wherein the charge-tapping layer has a conduction band offset that is less than the lowering of the tunneling barrier in the tunnel dielectric layer when a programming voltage is applied, such that electrons direct tunnel into the charge-trapping layer. The conduction band of the charge-trapping layer is has a value between ?1.0 eV and 2.3 eV. The storage transistor may further include a barrier layer between the tunnel dielectric layer and the charge-trapping layer, the barrier layer having a conduction band offset less than the conduction band offset of the charge-trapping layer.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 22, 2021
    Inventors: Sayeef Salahuddin, George Samachisa, Wu-Yi Henry Chien, Eli Harari
  • Patent number: 11069711
    Abstract: A method to ease the fabrication of high aspect ratio three dimensional memory structures for memory cells with feature sizes of 20 nm or less, or with a high number of memory layers. The present invention also provides an improved isolation between adjacent memory cells along the same or opposite sides of an active strip. The improved isolation is provided by introducing a strong dielectric barrier film between adjacent memory cells along the same side of an active strip, and by staggering memory cells of opposite sides of the active strip.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: July 20, 2021
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Wu-Yi Henry Chien, Scott Brad Herner
  • Patent number: 11069696
    Abstract: A thin-film storage transistor includes (a) first and second polysilicon layers of a first conductivity serving, respectively, as a source terminal and a drain terminal of the thin-film storage transistor; (b) a third polysilicon layer of a second conductivity adjacent the first and second polysilicon layers, serving as a channel region of the thin-film storage transistor; (c) a conductor serving as a gate terminal of the thin-film storage transistor; and (d) a charge-trapping region between the conductor and third polysilicon layer, wherein a fourth body layer polysilicon of the second conductivity is included to provide an alternative source of free charge careers to accelerate device operation.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: July 20, 2021
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Raul Adrian Cernea, George Samachisa, Wu-Yi Henry Chien
  • Publication number: 20210210506
    Abstract: A memory circuit includes: (i) a semiconductor substrate having a planar surface, the semiconductor substrate having formed therein circuitry for memory operations; (ii) a memory array formed above the planar surface, the memory array having one or more electrodes to memory circuits in the memory array, the conductors each extending along a direction substantially parallel to the planar surface; and (iii) one or more transistors each formed above, alongside or below a corresponding one of the electrodes but above the planar surface of the semiconductor substrate, each transistor (a) having first and second drain/source region and a gate region each formed out of a semiconductor material, wherein the first drain/source region, the second drain/source region or the gate region has formed thereon a metal silicide layer; and (b) selectively connecting the corresponding electrode to the circuitry for memory operations.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 8, 2021
    Applicant: Sunrise Memory Corporation
    Inventors: Tianhong Yan, Scott Brad Herner, Jie Zhou, Wu-Yi Henry Chien, Eli Harari
  • Patent number: 11049873
    Abstract: A thin-film storage transistor includes (a) first and second semiconductor regions comprising polysilicon of a first conductivity; and (b) a channel region between the first and second semiconductor regions, the channel region comprising single-crystal epitaxial grown silicon, and wherein the thin-film storage transistor is formed above a monocrystalline semiconductor substrate.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: June 29, 2021
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Chenming Hu, Wu-Yi Henry Chien, Eli Harari