Patents by Inventor An-Chih Chang

An-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).

  • Patent number: 11971659
    Abstract: A photoresist composition includes a conjugated resist additive, a photoactive compound, and a polymer resin. The conjugated resist additive is one or more selected from the group consisting of a polyacetylene, a polythiophene, a polyphenylenevinylene, a polyfluorene, a polypryrrole, a polyphenylene, and a polyaniline. The polyacetylene, polythiophene, polyphenylenevinylene, polyfluorene, polypryrrole, the polyphenylene, and polyaniline includes a substituent selected from the group consisting of an alkyl group, an ether group, an ester group, an alkene group, an aromatic group, an anthracene group, an alcohol group, an amine group, a carboxylic acid group, and an amide group. Another photoresist composition includes a polymer resin having a conjugated moiety and a photoactive compound. The conjugated moiety is one or more selected from the group consisting of a polyacetylene, a polythiophene, a polyphenylenevinylene, a polyfluorene, a polypryrrole, a polyphenylene, and a polyaniline.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 30, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chun-Chih Ho, Ching-Yu Chang, Chin-Hsiang Lin
  • Patent number: 11972113
    Abstract: A method for performing link management of a memory device in predetermined communications architecture with aid of handshaking phase transition control and associated apparatus are provided. The method may include: utilizing at least one upper layer controller of a transmission interface circuit to turn on a physical layer (PHY) circuit of the transmission interface circuit, for starting establishing a link between a host device and the memory device; before entering a first handshaking phase, utilizing the PHY circuit to receive any first incoming data sent from the host device to determine whether the any first incoming data indicates that the host device is in a corresponding first handshaking phase; and in response to the any first incoming data indicating that the host device is in the corresponding first handshaking phase, utilizing the PHY circuit to send first outgoing data that is equal to first predetermined data to the host device.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: April 30, 2024
    Assignee: Silicon Motion, Inc.
    Inventors: Bo-Chang Ye, Kuo-Cyuan Kuo, Chih-Chiang Chen
  • Publication number: 20240132904
    Abstract: The present invention relates to a method for producing recombinant human prethrombin-2 protein and having human ?-thrombin activity by the plant-based expression systems.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 25, 2024
    Applicant: PROVIEW-MBD BIOTECH CO., LTD.
    Inventors: Yu-Chia CHANG, Jer-Cheng KUO, Ruey-Chih SU, Li-Kun HUANG, Ya-Yun LIAO, Ching-I LEE, Shao-Kang HUNG
  • Publication number: 20240136191
    Abstract: A method of forming a semiconductor device includes forming source/drain regions on opposing sides of a gate structure, where the gate structure is over a fin and surrounded by a first dielectric layer; forming openings in the first dielectric layer to expose the source/drain regions; selectively forming silicide regions in the openings on the source/drain regions using a plasma-enhanced chemical vapor deposition (PECVD) process; and filling the openings with an electrically conductive material.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: Min-Hsiu Hung, Chien Chang, Yi-Hsiang Chao, Hung-Yi Huang, Chih-Wei Chang
  • Publication number: 20240132312
    Abstract: An automatic document feeding device having a main body, a stopping assembly, an actuating assembly and a controller. The main body has a sheet conveying channel of a curvature shape. A sheet feeding roller assembly and a sheet conveying roller assembly are arranged on the sheet conveying channel. The stopping assembly is arranged between the sheet feeding roller assembly and the sheet conveying roller assembly. The stopping assembly is capable of being located in or out of the sheet conveying channel. A buffering channel is located between the stopping assembly and the sheet feeding roller assembly. The controller is electrically connected with the actuating assembly and the sheet feeding roller assembly. The controller controls the actuating assembly to hold the stopping assembly in the sheet conveying channel to block the sheet conveying channel in a predetermined period, and then controls the actuating assembly to stop holding the stopping assembly.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 25, 2024
    Inventors: Ya-Ching TUNG, Po-Chih CHANG
  • Publication number: 20240134410
    Abstract: The present disclosure discloses a memory access interface device. A clock generation circuit generates reference signals. A transmitter transmits an output command and address signal to a memory device according to the reference signals. A signal training circuit executes a training process in a training mode that includes steps outlined below. A training signal is generated such that the training signal is transmitted as the output command and address signal. The training signal and the data signal generated by the memory device are compared to generate a comparison result indicating whether the data signal matches the training signal. The comparison result is stored. The clock generation circuit is controlled to modify a phase of at least one of the reference signals to be one of a plurality of under-test phases to execute a new loop of the training process until all the under-test phases are trained.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: FU-CHIN TSAI, GER-CHIH CHOU, CHUN-CHI YU, CHIH-WEI CHANG, MIN-HAN TSAI
  • Publication number: 20240132330
    Abstract: Motor control architecture including a travel, a hoist, and a controller is disclosed. The travel disposed on a main rail having an auxiliary-encoder includes a master-driver and a slave-driver for driving two motors. Each motor has a main-encoder. The hoist drives a rope and calculates a rope length continuously. The controller calculates an anti-sway position command based on the rope-length and a position command. The two drivers perform a full closed-loop computation based on a feedback of one main-encoder, a feedback of the auxiliary-encoder, and the anti-sway position command. Wherein, the master-driver controls one motor based on a speed command generated by the full closed-loop computation and the slave-driver follows the speed command and a torque command of the master-driver to drive another motor; or the two drivers compensate the torque command based on an error value between the feedback of one main-encoder and the feedback of the auxiliary-encoder.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Inventors: Huan-Chang CHEN, Po-Jen KO, Chun-Ju WU, Lon-Jay CHENG, Wan-Ping CHEN, Chih-Yuan CHANG
  • Publication number: 20240135999
    Abstract: The present disclosure discloses a memory access interface device. A clock generation circuit generates reference clock signals. Each of access signal transmission circuits each includes a duty cycle adjusting circuit, a duty cycle detection circuit, a frequency division circuit and an asynchronous first-in-first-out circuit. The duty cycle adjusting circuit performs duty cycle adjustment on one of the reference clock signals according to a duty cycle detection signal to generate an output clock signal having a duty cycle. The duty cycle detection circuit detects a variation of the duty cycle to generate the duty cycle detection signal. The frequency division circuit divides a frequency of the output clock signal to generate a read clock signal. The asynchronous first-in-first-out circuit receives an access signal from a memory access controller and outputs an output access signal according to the read clock signal to access the memory device accordingly.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 25, 2024
    Inventors: FU-CHIN TSAI, GER-CHIH CHOU, CHUN-CHI YU, CHIH-WEI CHANG
  • Patent number: 11967622
    Abstract: Embodiments provide a dielectric inter block disposed in a metallic region of a conductive line or source/drain contact. A first and second conductive structure over the metallic region may extend into the metallic region on either side of the inter block. The inter block can prevent etchant or cleaning solution from contacting an interface between the first conductive structure and the metallic region.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: April 23, 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: 11966133
    Abstract: An electronic device is disclosed. The electronic device includes a substrate, a plurality of color filters disposed on the substrate, an optical film disposed on the plurality of color filter, and a defect disposed between the substrate and the optical film. The optical film has a first base, a protective layer on the first base, and a second base between the first base and the protective layer and having a first processed area. In a top view of the electronic device, the first processed area corresponds to the defect and at least partially overlaps at least two color filters.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: April 23, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: Tai-Chi Pan, Chin-Lung Ting, I-Chang Liang, Chih-Chiang Chang Chien, Po-Wen Lin, Kuang-Ming Fan, Sheng-Nan Chen
  • Patent number: 11968856
    Abstract: Exemplary subpixel structures include a directional light-emitting diode structure characterized by a full-width-half-maximum (FWHM) of emitted light having a divergence angle of less than or about 10°. The subpixel structure further includes a lens positioned a first distance from the light-emitting diode structure, where the lens is shaped to focus the emitted light from the light-emitting diode structure. The subpixel structure still further includes a patterned light absorption barrier positioned a second distance from the lens. The patterned light absorption barrier defines an opening in the barrier, and the focal point of the light focused by the lens is positioned within the opening. The subpixels structures may be incorporated into a pixel structure, and pixel structures may be incorporated into a display that is free of a polarizer layer.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: April 23, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Chung-Chih Wu, Po-Jui Chen, Hoang Yan Lin, Guo-Dong Su, Wei-Kai Lee, Chi-Jui Chang, Wan-Yu Lin, Byung Sung Kwak, Robert Jan Visser
  • Patent number: 11964881
    Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: April 23, 2024
    Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
    Inventors: Pu-Wei Wu, Yi-Chieh Hsieh, Han-Yi Wang, Kuang-Chih Tso, Tzu-Ying Chan, Chung-Kai Chang, Chi-Shih Chen, Yu-Ting Cheng
  • Patent number: 11968869
    Abstract: An electronic device includes a flexible substrate and a conductive wire. The conductive wire is disposed on the flexible substrate and includes a metal portion and a plurality of openings disposed in the metal portion. The metal portion includes a plurality of extending portions and a plurality of joint portions, and each of the openings is surrounded by two of the plurality of extending portions and two of the plurality of joint portions. A ratio of a sum of widths of the plurality of extending portions to a sum of widths of the plurality of joint portions is in a range from 0.8 to 1.2.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: April 23, 2024
    Assignee: InnoLux Corporation
    Inventors: Ya-Wen Lin, Chien-Chih Chen, Yen-Hsi Tu, Cheng-Wei Chang, Shu-Hui Yang
  • Patent number: 11967594
    Abstract: A semiconductor device structure, along with methods of forming such, are described. The structure includes a stack of semiconductor layers spaced apart from and aligned with each other, a first source/drain epitaxial feature in contact with a first one or more semiconductor layers of the stack of semiconductor layers, and a second source/drain epitaxial feature disposed over the first source/drain epitaxial feature. The second source/drain epitaxial feature is in contact with a second one or more semiconductor layers of the stack of semiconductor layers. The structure further includes a first dielectric material disposed between the first source/drain epitaxial feature and the second source/drain epitaxial feature and a first liner disposed between the first source/drain epitaxial feature and the second source/drain epitaxial feature. The first liner is in contact with the first source/drain epitaxial feature and the first dielectric material.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: April 23, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Shih-Cheng Chen, Zhi-Chang Lin, Jung-Hung Chang, Lo Heng Chang, Chien Ning Yao, Kuo-Cheng Chiang, Chih-Hao Wang
  • 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
  • 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: 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: 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
  • 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
  • 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