Patents by Inventor Kai Chou

Kai Chou 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: 20250098187
    Abstract: A memory cell structure includes a transistor structure and a capacitor structure, where the capacitor structure includes a hydrogen absorption layer. The hydrogen absorption layer absorbs hydrogen, which prevents or reduces the likelihood of the hydrogen diffusing into an underlying metal-oxide channel of the transistor structure. In this way, the hydrogen absorption layer minimizes and/or reduces the likelihood of hydrogen contamination in the metal-oxide channel, which may enable a low current leakage to be achieved for the memory cell structure and reduces the likelihood of data corruption and/or failure of the memory cell structure, among other examples.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 20, 2025
    Inventors: Yu-Chien CHIU, Chen-Han CHOU, Ya-Yun CHENG, Ya-Chun CHANG, Wen-Ling LU, Yu-Kai CHANG, Pei-Chun LIAO, Chung-Wei WU
  • Publication number: 20250089324
    Abstract: A gate oxide layer for a high voltage transistor is formed using methods that avoid thinning in the corners of the gate oxide layer. A recess is formed in a silicon substrate. The exposed surfaces of the recess are thermally oxidized to form a thermal oxide layer of the gate oxide layer. A high temperature oxide layer of the gate oxide layer is then formed within the exposed surfaces of the recess by chemical vapor deposition. The combination of the thermal oxide layer and the high temperature oxide layer results in a gate oxide layer that does not exhibit the double hump phenomenon in the drain current vs. gate voltage curve. The high temperature oxide layer may include a rim that extends out of the recess.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 13, 2025
    Inventors: Jhu-Min Song, Yi-Kai Ciou, Chi-Te Lin, Yi-Huan Chen, Szu-Hsien Liu, Chan-Yu Hung, Chien-Chih Chou, Fei-Yun Chen
  • Publication number: 20250081730
    Abstract: A display may include an array of pixels such as light-emitting diode pixels. The pixels may include multiple circuitry decks that each include one or more circuit components such as transistors, capacitors, and/or resistors. The circuitry decks may be vertically stacked. Each circuitry deck may include a planarization layer formed from a siloxane material that conforms to underlying components and provides a planar upper surface. In this way, circuitry components may be vertically stacked to mitigate the size of each pixel footprint. The circuitry components may include capacitors that include both a high-k dielectric layer and a low-k dielectric layer. The display pixel may include a via with a width of less than 1 micron.
    Type: Application
    Filed: June 26, 2024
    Publication date: March 6, 2025
    Inventors: Andrew Lin, Alper Ozgurluk, Chao Liang Chien, Cheuk Chi Lo, Chia-Yu Chen, Chien-Chung Wang, Chih Pang Chang, Chih-Hung Yu, Chih-Wei Chang, Chin Wei Hsu, ChinWei Hu, Chun-Kai Tzeng, Chun-Ming Tang, Chun-Yao Huang, Hung-Che Ting, Jung Yen Huang, Lungpao Hsin, Shih Chang Chang, Tien-Pei Chou, Wen Sheng Lo, Yu-Wen Liu, Yung Da Lai
  • Publication number: 20250076846
    Abstract: The present disclosure describes a system configured to prevent a false low water alarm in a semiconductor processing system. The system includes a liquid reservoir configured to hold a liquid and a sensor system configured to delay an alarm for a predetermined duration of time. In some embodiments, the sensor system includes a sensor configured to determine a level of the fluid in the liquid reservoir and send a signal indicating the level of the fluid to an alarm system and a delay circuit coupled to the fluid level sensor and configured to delay the signal to the alarm system for the predetermined duration of time.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 6, 2025
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chun-Shuo CHEN, Hsuan-Yuan Wu, Kai Yuan Chan, Chien Chou Ko
  • Publication number: 20250064528
    Abstract: A method for navigating an operation performed by a surgical system is provided. The method includes: obtaining an image including a feature on the surgical system; determining, based on encoder outputs of arm joints of the surgical system, a first feature position with respect to a first coordinate system; determining, based on the image, a second feature position with respect to a second coordinate system; determining a transformation relationship between the first and second coordinate systems based on the first and second positions; determining, during the operation, based on the encoder outputs, a position of an instrument used for the operation with respect to the first coordinate system; determining, based on the position and the transformation relationship, another position of the instrument with respect to the second coordinate system; and displaying at least one part of the instrument in an image based on the other position.
    Type: Application
    Filed: August 27, 2024
    Publication date: February 27, 2025
    Inventors: HAO-KAI CHOU, CHIH-MIN YANG
  • Publication number: 20250072164
    Abstract: A method for forming an indium gallium nitride quantum well structure is disclosed. The method includes forming a gallium nitride microdisk on a substrate, with the gallium nitride microdisk having an inverted pyramid form and an end face; and forming multiple quantum well layers on the end face, with each quantum well layer including an indium gallium nitride quantum well and a barrier layer. The indium gallium nitride quantum well is grown at a growth temperature adjusted using a trend equation within a temperature range of 480° C. to 810° C.
    Type: Application
    Filed: September 26, 2023
    Publication date: February 27, 2025
    Inventors: I-KAI LO, CHENG-DA TSAI, YU-CHUNG LIN, YING-CHIEH WANG, MING-CHI CHOU, TING-CHANG CHANG
  • Publication number: 20250064421
    Abstract: A calibration device for a medical imaging system is provided. The calibration device includes a structural framework and multiple markers arranged on the structural framework. At least one of the following two conditions are satisfied: at least two markers are with different absorption rates for a radiation used by the medical imaging system; and at least two positions within one of the markers are with different absorption rates for the radiation.
    Type: Application
    Filed: August 27, 2024
    Publication date: February 27, 2025
    Inventors: HAO-KAI CHOU, CHIH-MIN YANG
  • Publication number: 20250056877
    Abstract: A semiconductor structure includes a substrate, an isolation structure disposed in the substrate, and a hybrid structure disposed over the isolation structure. The hybrid structure is substantially conformal with respect to a profile of the isolation structure. The hybrid structure includes an oxide component, a nitride component surrounding the oxide component, and a first polysilicon component alongside the nitride component. The nitride component includes a first upper surface closed to the first polysilicon component, and a second upper surface distal to the first polysilicon component. The second upper surface is lower than the first upper surface.
    Type: Application
    Filed: October 30, 2024
    Publication date: February 13, 2025
    Inventors: HUNG-SHU HUANG, JHIH-BIN CHEN, MING CHYI LIU, YU-CHANG JONG, CHIEN-CHIH CHOU, JHU-MIN SONG, YI-KAI CIOU, TSUNG-CHIEH TSAI, YU-LUN LU
  • Patent number: 12218230
    Abstract: A p-GaN high-electron-mobility transistor, includes a substrate, a channel layer stacked on the substrate, a supply layer stacked on the channel layer, a first doped layer stacked on the supply layer, a second doped layer stacked on the first doped layer, and a third doped layer stacked on the second doped layer. A doping concentration of the first doped layer and the doping concentration of the third doped layer are lower than a doping concentration of the second doped layer. A gate is located on the third doped layer, and a source and a drain are electrically connected to the channel layer and the supply layer, respectively.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: February 4, 2025
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Ting-Chang Chang, Mao-Chou Tai, Yu-Xuan Wang, Wei-Chen Huang, Ting-Tzu Kuo, Kai-Chun Chang, Shih-Kai Lin
  • Publication number: 20240295368
    Abstract: A water-cooling structure includes a heat sink, a cover plate, a heat exchange module, a retaining wall, and ribs. The heat sink has an inlet hole, an outlet hole, and an inner space which communicates with the inlet hole and the outlet hole. The cover plate is disposed on the heat sink to seal the inner space. The heat exchange module and the retaining wall are disposed on the cover plate and located in the inner space. The inlet hole and the outlet hole are disposed on different sides of the retaining wall. The ribs are disposed on the cover plate and form flow channels in the inner space. A coolant enters the inner space from the inlet hole, enters the flow channels along the retaining wall to contact the heat exchange module, and flows out of the outlet hole after passing through the heat exchange module.
    Type: Application
    Filed: January 12, 2024
    Publication date: September 5, 2024
    Applicant: PEGATRON CORPORATION
    Inventors: Wei-Pang Lee, Shih-Chieh Su, Shih-Kai Chou
  • Publication number: 20240115327
    Abstract: An aiming system includes a positioner, an aiming device, and a processor. The positioner has a function of acquiring spatial information, and the aiming device is connected to the positioner, and the processor is connected to the positioner or the aiming device. A method of using the aiming system is also provided. Surgical guidance is more intuitive by directly combining the positioner with the aiming device.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Chih Wei CHEN, Hao Kai CHOU, Chih Min YANG
  • Patent number: 11929125
    Abstract: Apparatuses and techniques are described for reducing the number of latches used in sense circuits for a memory device. The number of internal user data latches in a sense circuit is reduced by using an external data transfer latch to store a bit of user data, in place of an internal user data latch. The user data in the data transfer latches identifies a subset of the data states which are not prohibited from having a verify test. The subset is shifted as the program operation proceeds, at specified program loops, to encompass higher data states. The completion of programming by a memory cell is indicated by the user data latches and another internal latch of the sense circuit in place of the external data transfer latch.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: March 12, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Tai-Yuan Tseng, Chia-Kai Chou, Iris Lu
  • Patent number: 11903591
    Abstract: A surgical power drill system includes a housing unit, a driving unit, a tool holder, and a screw member. The driving unit is movably mounted in the housing unit and includes a motor and a motor shaft coupled to the motor. The driving unit is movable relative to the housing unit between a distal position, where the driving unit is distal from a front end of the housing unit, and a proximate position, where the driving unit is proximate to the front end of the housing unit. The tool holder is coupled to a first end portion of the motor shaft. The screw member is coupled to a second end portion of the motor shaft.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: February 20, 2024
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Patent number: 11901018
    Abstract: A local data bus of a sense amplifier associated with one bit line is used to perform logical operations for a sensing operation performed by another sense amplifier associated with a different bit line. Each sense amplifier circuit includes a sensing node that is pre-charged, then discharged through a selected memory cell and a local data bus with a number of data latches connected. Target program data can be stored in the latches and combined in logical combinations with the sensed value of the memory cell to determine whether it has verified. By including a transfer circuit between the local data buses of a pair of sense amplifiers, the logical operations of a first sense amplifier can be performed using the local data bus of the paired sense amplifier, freeing the first sense amplifier's sense node to be concurrently pre-charged for a subsequent sensing operation, thereby improving performance.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: February 13, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Iris Lu, Tai-Yuan Tseng, Chia-Kai Chou
  • Patent number: 11839416
    Abstract: A surgical expandable implant includes a bolt, a movable member, and a support body. The bolt has a bolt body and a fixing member. The movable member is configured to be slidably sleeved on the bolt body. The support body has a first end configured to extend through the fixing member and a second end configured to extend through the movable member. The movable member is configured to slide along the length of the bolt body so as to move the support body from an initial shape to a deformed shape.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: December 12, 2023
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Patent number: 11759274
    Abstract: A surgical device for retaining a tool, the surgical device comprises a multi-axis manipulator configured to generate relative movement between a moving end and a stationary end thereof; a housing fixed to the stationary end of the manipulator; a motor configured to rotate the tool by a rotating interface when the tool is retained to the rotating interface; an adaptor connected to the manipulator and in orientational fixation to the moving end of the manipulator, the adaptor being configured to move with the moving end, and the adaptor comprises a tool stopper disposed therein, wherein the tool stopper is configured to catch the tool if the tool is dropped from the rotating interface; a tool head latchless interface exposed to a channel of the adaptor and configured to provide attraction force within the channel for retaining the tool to the rotating interface.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 19, 2023
    Assignee: POINT ROBOTICS (SINGAPORE) PTE. LTD.
    Inventors: Chih-Wei Chen, Hao-Kai Chou, Xiu-Yun Xiao
  • Publication number: 20230207022
    Abstract: A local data bus of a sense amplifier associated with one bit line is used to perform logical operations for a sensing operation performed by another sense amplifier associated with a different bit line. Each sense amplifier circuit includes a sensing node that is pre-charged, then discharged through a selected memory cell and a local data bus with a number of data latches connected. Target program data can be stored in the latches and combined in logical combinations with the sensed value of the memory cell to determine whether it has verified. By including a transfer circuit between the local data buses of a pair of sense amplifiers, the logical operations of a first sense amplifier can be performed using the local data bus of the paired sense amplifier, freeing the first sense amplifier's sense node to be concurrently pre-charged for a subsequent sensing operation, thereby improving performance.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 29, 2023
    Applicant: SanDisk Technologies LLC
    Inventors: Iris Lu, Tai-Yuan Tseng, Chia-Kai Chou
  • Patent number: 11612438
    Abstract: A navigation method for a medical operation and implemented by a robotic system is provided. The method includes the steps of: receiving, at a processor of the robotic system, at least one set of navigation data; receiving or generating at least one three-dimensional model of the virtual object in the navigation data; calculating the navigation data to generate a virtual environment and at least one navigation instruction; and presenting, at a user interface associated with the robotic system, the virtual environment and/or the navigation instruction to a user of the robotic system for the user to refer to during the medical operation.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 28, 2023
    Assignee: POINT ROBOTICS MEDTECH INC.
    Inventors: Shou-An Yu, Bang-Hao Dai, Che-Wei Su, Hao-Kai Chou, Chia-Ho Yen, Chih-Min Yang, Shyue-Cherng Juang
  • Patent number: 11602908
    Abstract: The present disclosure provides a method of mesh generation for an RTM process, including operations of: obtaining a geometry of a target object; generating a solid mesh of the target object according to the geometry; obtaining material characteristics of the target object; assembling a runner mesh with the solid mesh, wherein the runner mesh has grid dimensions different from those of the solid mesh; determining process parameters of the RTM process; and generating a forecasted result of the RTM process according to the solid mesh, the runner mesh, the process parameters, and the material characteristics. Generating the solid mesh includes operations of: dividing the geometry into modules; generating a first and second modular meshes corresponding to a first and second modules, wherein the second modular mesh abuts the first modular mesh, and the second modular mesh has grid dimensions different from those of the first modular mesh.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 14, 2023
    Assignee: CORETECH SYSTEM CO., LTD.
    Inventors: Ching-Kai Chou, Chien-Ting Wu, Hsun Yang, Li-Hsuan Shen, Chih-Chung Hsu, Chia-Hsiang Hsu, Rong-Yeu Chang
  • Patent number: D1061606
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: February 11, 2025
    Assignee: KDAN MOBILE SOFTWARE LTD.
    Inventors: Po-Chou Su, Hsuan Tu, Nan-Kuang Lee, Jia-Rou Lee, Weichih Sun, Kai-Yi Wu, Ying-Hsiu Chen