Patents by Inventor Chih Chang

Chih Chang 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: 20240130080
    Abstract: An immersion cooling system is provided. It includes a pressure seal tank, an electronic module, a blower, and a distributor plate. The pressure seal tank contains a cooling liquid, and a gas outlet is disposed on the top or a sidewall of the pressure seal tank, a gas inlet is disposed on the bottom of the pressure seal tank. The gas outlet is higher than the liquid level of the cooling liquid. The electronic module is disposed in the pressure seal tank and immersed in the cooling liquid. The blower is communicated with the pressure seal tank and configured to extract the gas from the gas outlet and inject the gas into the pressure seal tank via the gas inlet. The distributor plate is disposed in the pressure seal tank and located between the electronic module and the gas inlet.
    Type: Application
    Filed: July 12, 2023
    Publication date: April 18, 2024
    Inventors: Ren-Chun CHANG, Wei-Chih LIN, Zih-Yang FAN
  • Publication number: 20240126170
    Abstract: A method of manufacturing a semiconductor device includes forming a photoresist layer including a photoresist composition over a substrate. The photoresist layer is selectively exposed to actinic radiation, the selectively exposed photoresist layer is developed to form a pattern in the photoresist layer. The photoresist composition includes a polymer including monomer units with photocleaving promoters, wherein the photocleaving promoters are one or more selected from the group consisting of living free radical polymerization chain transfer agents, electron withdrawing groups, bulky two dimensional (2-D) or three dimensional (3-D) organic groups, N-(acyloxy)phthalimides, and electron stimulated radical generators.
    Type: Application
    Filed: May 22, 2023
    Publication date: April 18, 2024
    Inventors: Chun-Chih HO, Chin-Hsiang Lin, Ching-Yu Chang
  • Publication number: 20240130242
    Abstract: Embodiments of present invention provide a method of forming a MRAM structure. The method includes forming at least one magnetic tunnel junction (MTJ) stack on top of a supporting structure; forming a conformal liner surrounding a sidewall of the MTJ stack; forming a first dielectric layer surrounding the conformal liner; selectively forming a metal oxide layer on top of the conformal liner and the first dielectric layer, the metal oxide layer having at least a first opening that exposes a top surface of the MTJ stack; and forming a top contact contacting the top surface of the MTJ stack through the first opening in the metal oxide layer. An MRAM structure formed thereby is also provided.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Inventors: Ailian Zhao, Wu-Chang Tsai, Ashim Dutta, Chih-Chao Yang
  • Publication number: 20240128252
    Abstract: The present application discloses a semiconductor structure. The semiconductor structure a top die and a bottom die, and the maximum die size is constrained to reticle dimension. Each die includes (1) core: computation circuits, (2) phy: analog circuit connecting to memory, (3) I/O: analog circuit connecting output elements, (4) SERDES: serial high speed analog circuit, (5) intra-stack connection circuit, and (6) cache memory. This semiconductor structure can be chapleted design for high wafer yield with least tape out masks for cost saving. The intra-stack connection circuit connects the top die and the bottom die in the shortest distance (about tens of micrometers), so as to provide high signal quality and power efficiency.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 18, 2024
    Inventors: TZU-WEI CHIU, CHUN-WEI CHANG, SHANG-PIN CHEN, WEI-CHIH CHEN, CHE-YEN HUANG
  • Patent number: 11963300
    Abstract: A panel device including a substrate, a conductor pad, a turning wire, and a circuit board is provided. The substrate has a first surface and a second surface connected to the first surface while a normal direction of the second surface is different from a normal direction of the first surface. The conductor pad is disposed on the first surface of the substrate. The turning wire is disposed on the substrate and extends from the first surface to the second surface. The turning wire includes a wiring layer in contact with the conductor pad and a wire covering layer covering the wiring layer. The circuit board is bonded to and electrically connected to the wire covering layer. A manufacturing method of a panel device is also provided herein.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: April 16, 2024
    Assignee: Au Optronics Corporation
    Inventors: Chun-Yueh Hou, Hao-An Chuang, Fan-Yu Chen, Hsi-Hung Chen, Yun Cheng, Wen-Chang Hsieh, Chih-Wen Lu
  • Patent number: 11962693
    Abstract: Systems and methods of generating a security key for an integrated circuit device include generating a plurality of key bits with a physically unclonable function (PUF) device. The PUF can include a random number generator that can create random bits. The random bits may be stored in a nonvolatile memory. The number of random bits stored in the nonvolatile memory allows for a plurality of challenge and response interactions to obtain a plurality of security keys from the PUF.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shih-Lien Linus Lu, Kun-hsi Li, Shih-Liang Wang, Jonathan Tsung-Yung Chang, Yu-Der Chih, Cheng-En Lee
  • Patent number: 11961893
    Abstract: Improved conductive contacts, methods for forming the same, and semiconductor devices including the same are disclosed. In an embodiment, a semiconductor device includes a first interlayer dielectric (ILD) layer over a transistor structure; a first contact extending through the first ILD layer, the first contact being electrically coupled with a first source/drain region of the transistor structure, a top surface of the first contact being convex, and the top surface of the first contact being disposed below a top surface of the first ILD layer; a second ILD layer over the first ILD layer and the first contact; and a second contact extending through the second ILD layer, the second contact being electrically coupled with the first contact.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Te-Chih Hsiung, Jyun-De Wu, Yi-Chen Wang, Yi-Chun Chang, Yuan-Tien Tu
  • Patent number: 11959284
    Abstract: A siding splice joint contains: a body, multiple washers, and multiple screws. The body includes a first face, a second face, and multiple through holes. A respective washer is injection molded on a respective through hole and includes a thin portion, a thick portion, a connection portion, and a lock orifice. The thick portion of the respective washer is connected on the first face, the thick portion of the respective washer is connected on the second face, and the connection portion is inserted through the respective through hole. A respective screw includes a head, an extension shank integrally extending from the head, and a tip formed on the extension shank away from the head. The extension shank is screwed in the locking orifice of the respective washer so that the respective screw is not locked on but connected with the respective washer.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: April 16, 2024
    Assignee: C & H INTERNATIONAL CORPORATION
    Inventor: Yuan-Chih Chang
  • Publication number: 20240120282
    Abstract: The present application discloses a semiconductor structure and methods for manufacturing semiconductor structures. The semiconductor structure includes a plurality of bottom dies and a top die stacked on the bottom dies. The bottom dies receive power supplies through tiny through silicon vias (TSVs) formed in backside substrates of the bottom dies, while the top die receives power supplies through dielectric vias (TDVs) formed in a dielectric layer that covers the bottom dies. By enabling backside power delivery to the bottom die, more space can be provided for trace routing between stacked dies. Therefore, greater computation capability can be achieved within a smaller chip area with less power loss.
    Type: Application
    Filed: February 20, 2023
    Publication date: April 11, 2024
    Inventors: TZU-WEI CHIU, CHUN-WEI CHANG, SHANG-PIN CHEN, WEI-CHIH CHEN, CHE-YEN HUANG
  • Publication number: 20240117862
    Abstract: An actuating device includes an actuator and a stationary portion. The actuator has at least one driving portion. The stationary portion is provided at an arbitrary position along the actuator such that the driving portion forms a first driving portion and a second driving portion. The first driving portion and the second driving portion can be provided with the same actuating ability or with different actuating abilities respectively by adjusting the position of the stationary portion.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 11, 2024
    Inventors: Chih CHANG, Po-Yuan LIAO
  • Publication number: 20240116707
    Abstract: A powered industrial truck includes a lateral movement assembly including four sliding members and four pivotal members both on a wheeled carriage, four links having a first end pivotably secured to the sliding member and a second end pivotably secured to either end of the pivotal member, a motor shaft having two ends pivotably secured to the pivotal members respectively, a first electric motor on one frame member, and four mounts attached to the sliding members respectively; two lift assemblies including a second electric motor, a shaft having two ends rotatably secured to the sliding members respectively, two gear trains at the ends of the shaft respectively, a first gear connected to the second electric motor, a second gear on the shaft, and a first roller chain on the first and second gears; two electric attachments on the platform and being laterally moveable, each attachment. The mount has rollers.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 11, 2024
    Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Chung-Yu Liu
  • Publication number: 20240118618
    Abstract: A method of manufacturing a semiconductor device includes forming a first layer having an organic material over a substrate. A second layer is formed over the first layer, wherein the second layer includes a silicon-containing polymer having pendant acid groups or pendant photoacid generator groups. The forming a second layer includes: forming a layer of a composition including a silicon-based polymer and a material containing an acid group or photoacid generator group over the first layer, floating the material containing an acid group or photoacid generator group over the silicon-based polymer, and reacting the material containing an acid group or photoacid generator group with the silicon-based polymer to form an upper second layer including a silicon-based polymer having pendant acid groups or pendant photoacid generator groups overlying a lower second layer comprising the silicon-based polymer. A photosensitive layer is formed over the second layer, and the photosensitive layer is patterned.
    Type: Application
    Filed: April 12, 2023
    Publication date: April 11, 2024
    Inventors: Chun-Chih HO, Ching-Yu Chang, Chin-Hsiang Lin
  • Publication number: 20240120203
    Abstract: A method includes forming a dummy gate over a semiconductor fin; forming a source/drain epitaxial structure over the semiconductor fin and adjacent to the dummy gate; depositing an interlayer dielectric (ILD) layer to cover the source/drain epitaxial structure; replacing the dummy gate with a gate structure; forming a dielectric structure to cut the gate structure, wherein a portion of the dielectric structure is embedded in the ILD layer; recessing the portion of the dielectric structure embedded in the ILD layer; after recessing the portion of the dielectric structure, removing a portion of the ILD layer over the source/drain epitaxial structure; and forming a source/drain contact in the ILD layer and in contact with the portion of the dielectric structure.
    Type: Application
    Filed: March 8, 2023
    Publication date: April 11, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Te-Chih HSIUNG, Yun-Hua CHEN, Bing-Sian WU, Yi-Hsuan CHIU, Yu-Wei CHANG, Wen-Kuo HSIEH, Chih-Yuan TING, Huan-Just LIN
  • Patent number: 11956994
    Abstract: The present disclosure is generally related to 3D imaging capable OLED displays. A light field display comprises an array of 3D light field pixels, each of which comprises an array of corrugated OLED pixels, a metasurface layer disposed adjacent to the array of 3D light field pixels, and a plurality of median layers disposed between the metasurface layer and the corrugated OLED pixels. Each of the corrugated OLED pixels comprises primary or non-primary color subpixels, and produces a different view of an image through the median layers to the metasurface to form a 3D image. The corrugated OLED pixels combined with a cavity effect reduce a divergence of emitted light to enable effective beam direction manipulation by the metasurface. The metasurface having a higher refractive index and a smaller filling factor enables the deflection and direction of the emitted light from the corrugated OLED pixels to be well controlled.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 9, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Chung-Chih Wu, Hoang Yan Lin, Guo-Dong Su, Zih-Rou Cyue, Li-Yu Yu, Wei-Kai Lee, Guan-Yu Chen, Chung-Chia Chen, Wan-Yu Lin, Gang Yu, Byung-Sung Kwak, Robert Jan Visser, Chi-Jui Chang
  • Patent number: 11955705
    Abstract: A multi-input multi-output antenna system capable of being disposed in an electronic device and the electronic device including the antenna system have a low-frequency antenna assembly and a high-frequency antenna assembly. The low-frequency antenna assembly includes multiple low-frequency antennas that are spaced apart from each other by a distance. The high-frequency antenna assembly includes multiple high-frequency antennas that are spaced apart from each other by a distance. One of the high-frequency antennas is structured as a low-profile dish antenna and is located between the low-frequency antennas, so that the antenna system has smaller volume and height, and better isolation and radiation patterns.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 9, 2024
    Assignee: Alpha Networks Inc.
    Inventors: De-Chang Su, Chih Jen Cheng
  • Patent number: 11955469
    Abstract: A micro LED display panel includes a blue LED layer, a green LED layer, and a red LED layer. The blue LED layer, the green LED layer, and the red LED layer are in a stacked formation. The blue, the green, and the red LED layers each include a plurality of micro LEDs spaced apart from each other. The composition of the layers is such that light emitted from all but the bottom layer is able to pass through transparent material in other layers before exiting the panel and being viewed.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: April 9, 2024
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Chih Chang, Chung-Wen Lai
  • Publication number: 20240109739
    Abstract: This disclosure is directed to an automatic sheet feeding device having a flipping mechanism which is used for a sheet. The automatic sheet feeding device has a sheet outputting tray, a sheet outputting channel, the flipping mechanism and a switching guide mechanism. The sheet outputting channel is disposed corresponding to the sheet outputting tray. The flipping mechanism is arranged between the sheet outputting channel and the sheet outputting tray. The switching guide mechanism is arranged between the sheet outputting channel and the flipping mechanism, and the switching guide mechanism is used for guiding the sheet to be conveyed to the sheet outputting tray from the sheet outputting channel or conveyed to the sheet outputting tray from the flipping mechanism. Therefore, an efficiency of duplex scanning of the automatic sheet feeding device may be improved.
    Type: Application
    Filed: November 23, 2022
    Publication date: April 4, 2024
    Inventors: Pei-Chi HO, Po-Chih CHANG
  • Publication number: 20240113676
    Abstract: A detection device for detecting an eyeball includes a frame element, a transceiver, and a contact lens element. The transceiver is disposed on the frame element. The transceiver transmits a first RF (Radio Frequency) signal. The contact lens element includes a resonator. The resonator converts the first RF signal into a first ultrasonic signal. The first ultrasonic signal is transmitted to the eyeball. The resonator converts a second ultrasonic signal from the eyeball into a second RF signal. The transceiver receives the second RF signal.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Applicant: HTC Corporation
    Inventors: Chun-Yih WU, Ta-Chun PU, Yen-Liang KUO, Wei-Chih CHANG
  • Publication number: 20240110139
    Abstract: A surface coating comprising a hydrophilic polymer and polyelectrolyte multilayers. Also, a cell culture system including a cell culture article having a surface coated with the surface coating. Also, methods of preparing the surface coatings and systems.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 4, 2024
    Applicant: ACADEMIA SINICA
    Inventor: YING-CHIH CHANG
  • Publication number: 20240113032
    Abstract: Interconnect structure packages (e.g., through silicon vias (TSV) packages, through interlayer via (TIV) packages) may be pre-manufactured as opposed to forming TIVs directly on a carrier substrate during a manufacturing process for a semiconductor die package at backend packaging facility. The interconnect structure packages may be placed onto a carrier substrate during manufacturing of a semiconductor device package, and a semiconductor die package may be placed on the carrier substrate adjacent to the interconnect structure packages. A molding compound layer may be formed around and in between the interconnect structure packages and the semiconductor die package.
    Type: Application
    Filed: April 25, 2023
    Publication date: April 4, 2024
    Inventors: Kai-Fung CHANG, Chin-Wei LIANG, Sheng-Feng WENG, Ming-Yu YEN, Cheyu LIU, Hung-Chih CHEN, Yi-Yang LEI, Ching-Hua HSIEH