Patents by Inventor Cheng Chang

Cheng 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: 20240162318
    Abstract: A thin film transistor includes a gate electrode embedded in an insulating layer that overlies a substrate, a gate dielectric overlying the gate electrode, an active layer comprising a compound semiconductor material and overlying the gate dielectric, and a source electrode and drain electrode contacting end portions of the active layer. The gate dielectric may have thicker portions over interfaces with the insulating layer to suppress hydrogen diffusion therethrough. Additionally or alternatively, a passivation capping dielectric including a dielectric metal oxide material may be interposed between the active layer and a dielectric layer overlying the active layer to suppress hydrogen diffusion therethrough.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 16, 2024
    Inventors: Min-Kun DAI, Wei-Gang CHIU, I-Cheng CHANG, Cheng-Yi WU, Han-Ting TSAI, Tsann LIN, Chung-Te LIN
  • Publication number: 20240162333
    Abstract: Semiconductor devices and methods of manufacturing are presented in which inner spacers for nanostructures are manufactured. In embodiments a dielectric material is deposited for the inner spacer and then treated. The treatment may add material and cause an expansion in volume in order to close any seams that can interfere with subsequent processes.
    Type: Application
    Filed: January 24, 2024
    Publication date: May 16, 2024
    Inventors: Wan-Yi Kao, Hung Cheng Lin, Che-Hao Chang, Yung-Cheng Lu, Chi On Chui
  • Publication number: 20240162218
    Abstract: An electrostatic discharge device including a gate structure, a plurality of first doped regions, and a plurality of second doped regions. The gate structure is disposed on a substrate. The gate structure includes a body part and a plurality of extension parts. The extension parts are connected with the body part, and an extension direction of the body part is different from an extension direction of the extension parts. The first doped regions are located in the substrate between the extension parts. The second doped regions are located in the substrate at two outer sides of the extension parts. The first doped regions and the second doped regions have different conductivity types.
    Type: Application
    Filed: February 6, 2023
    Publication date: May 16, 2024
    Applicant: United Microelectronics Corp.
    Inventors: Chih Hsiang Chang, Mei-Ling Chao, Yin-Chia Tsai, Tien-Hao Tang, Kuan-Cheng Su
  • Publication number: 20240160714
    Abstract: An access control management system, access control management method and an image capture device are provided. The access control management system includes an image capture device and a processing device. The image capture device includes: a lens; an image sensor configured to sense a light intensity passing through the lens to generate an image of a subject being captured; an image signal processor (ISP) configured to capture a face image in the generated image, perform a de-identification processing on the face image to obtain de-identified image data, and transform the de-identified image data into multiple de-identified features; and an I/O interface configured to output the de-identified features. The processing device is configured to verify an identity of a user to which the de-identified features belong by a trained deep learning model. The deep learning model is trained by using de-identified features and identities of multiple users registered in advance.
    Type: Application
    Filed: September 7, 2023
    Publication date: May 16, 2024
    Applicant: DeCloak Intelligences Co.
    Inventors: Yao-Tung Tsou, Yun-Yu Wang, Guo-Cheng Chien, Kuo-Yu Chang
  • Publication number: 20240159986
    Abstract: An imaging lens assembly module includes an imaging lens element set, a lens carrier and a light blocking structure. The imaging lens element set has an optical axis. At least one lens element of the lens elements is disposed in the lens carrier. The light blocking structure includes a light blocking opening. The optical axis passes through the light blocking opening, and the light blocking opening includes at least two arc portions and a shrinking portion. Each of the arc portions has a first curvature radius for defining a maximum diameter of the light blocking opening. The shrinking portion is connected to the arc portions for forming the light blocking opening into a non-circular shape. The shrinking portion includes at least one protruding arc which extends and shrinks gradually from the shrinking portion to the optical axis, and the protruding arc has a second curvature radius.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Lin-An CHANG, Ming-Ta CHOU, Shu-Yun YANG, Cheng-Feng LIN
  • Publication number: 20240159953
    Abstract: A backlight module includes a light guide plate, a light source, and an optical film. The light guide plate has a light incident surface and a light exiting surface opposite to the light incident surface, in which the light exiting surface has a normal line. The light source is adjacent to the light incident surface. The optical film is disposed to the light exiting surface and includes plural parallel prisms and plural microstructures. An extending direction of each of the prisms is perpendicular to the normal line, and each of the prisms faces the light exiting surface of the light guide plate. Each of the microstructures is located on a surface of the optical film which faces away from the light guide plate. Each of the microstructures has a pyramid structure with plural facets. The prisms are located between the microstructures and the light exiting surface.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 16, 2024
    Inventors: Chia-Yin CHANG, Po-Chang HUANG, Kun-Cheng LIN
  • Publication number: 20240161541
    Abstract: A face recognition system and a face recognition method are provided. The face recognition system includes an image capturing device and a processing device. The image capturing device is configured to capture a face image of a user to be recognized, de-identify the face image to obtain de-identified image data, and transform the de-identified image data into multiple de-identified features and output. The processing device is configured to verify an identity of the user to which the de-identified features belong by using a trained machine learning model. The machine learning model is trained by using de-identified features and identities of multiple users registered in advance.
    Type: Application
    Filed: September 6, 2023
    Publication date: May 16, 2024
    Applicant: DeCloak Intelligences Co.
    Inventors: Yao-Tung Tsou, Yun-Yu Wang, Guo-Cheng Chien, Kuo-Yu Chang
  • Publication number: 20240159642
    Abstract: A smoke detector with an anti-insect function includes a substrate, an optical detection module, a top cover, a base and a perforated plate. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The top cover has a lateral wall. The base is disposed on the substrate and connected to the top cover to cover the optical detection module. The base has a second block structure partly overlapped with the lateral wall to form a guiding channel. The perforated plate is disposed between the lateral wall and the second block structure to prevent an insect from moving into the top cover through the guiding channel.
    Type: Application
    Filed: January 25, 2024
    Publication date: May 16, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: Yen-Chang Chu, Cheng-Nan Tsai, Chih-Ming Sun, Zhi-Hao Wu, Hung-Yu Lai
  • Patent number: 11984361
    Abstract: A semiconductor device includes a substrate, a plurality of nanosheets, a plurality of source/drain (S/D) features, and a gate stack. The substrate includes a first fin and a second fin. The first fin has a first width less than a second width of the second fin. The plurality of nanosheets is disposed on the first fin and the second fin. The plurality of source/drain (S/D) features are located on the first fin and the second fin and abutting the plurality of nanosheets. A bottom surface of the plurality of source/drain (S/D) features on the first fin is equal to or lower than a bottom surface of the plurality of source/drain (S/D) features on the second fin. The gate stack wraps each of the plurality of nanosheets.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: May 14, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Lo-Heng Chang, Chih-Hao Wang, Kuo-Cheng Chiang, Jung-Hung Chang, Pei-Hsun Wang
  • Publication number: 20240148301
    Abstract: The present invention provides a smart wearable device, which is held on an upper body of a wearer by a plurality of contact pad sets, and has a connection unit, a first sensing module, a second sensing module, and an extension unit.
    Type: Application
    Filed: November 7, 2022
    Publication date: May 9, 2024
    Inventors: Chien-Hsiang Chang, Yang-Cheng Lin, Wei-Chih Lien, Tseng-Ping Chiu, Pei-Yun Wu, Bo Liu
  • Publication number: 20240151346
    Abstract: A container for containing food or liquid is provided. The container includes a body portion, a lid and an attachment. The lid is detachably disposed on the body portion. The attachment is configured to be disposed on the lid or the body portion and includes a magnetic attraction member and a connecting structure. The magnetic attraction member is adapted to be magnetically connected to a mobile electronic device. The connecting structure is disposed between the magnetic attraction member and the container for selectively fixing the magnetic attraction member at a first position or a second position. The connecting structure includes a fastening member, and the fastening member is adapted to be detachably fastened to the body portion or the lid.
    Type: Application
    Filed: June 9, 2023
    Publication date: May 9, 2024
    Inventors: JUI-CHEN LU, CHING-YU WANG, YU-TING HUNG, YU-CHANG CHIANG, CHENG-CHE HO
  • Publication number: 20240153958
    Abstract: A semiconductor device structure, along with methods of forming such, are described. The structure includes a plurality of semiconductor layers having a first group of semiconductor layers, a second group of semiconductor layers disposed over and aligned with the first group of semiconductor layers, and a third group of semiconductor layers disposed over and aligned with the second group of semiconductor layers. The structure further includes a first source/drain epitaxial feature in contact with a first number of semiconductor layers of the first group of semiconductor layers and a second source/drain epitaxial feature in contact with a second number of semiconductor layers of the third group of semiconductor layers. The first number of semiconductor layers of the first group of semiconductor layers is different from the second number of semiconductor layers of the third group of semiconductor layers.
    Type: Application
    Filed: January 7, 2024
    Publication date: May 9, 2024
    Inventors: Jung-Hung CHANG, Zhi-Chang LIN, Shih-Cheng CHEN, Chien Ning YAO, Kuo-Cheng CHIANG, Chih-Hao WANG
  • Publication number: 20240149403
    Abstract: A socket includes multiple protrusions and grooves alternatively formed in the inner periphery of the central hole of the socket. Each protrusion has an encounter face formed on the distal end thereof. The encounter face includes two inclined faces which intersect at a peak point by a top angle. Each protrusion includes two lateral sides which respectively face the grooves corresponding thereto. The two inclined faces respectively intersect the two lateral sides at a corner by a corner angle which is an obtuse angle. An angle of 2 to 9 degrees is defined between each of the inclined face and a chord that passes the peak point and is perpendicular to an axis of the protrusion. The center angle between the two lateral sides of each protrusion is 25 to 44 degrees and the engagement between the two inclined faces and the worn object can be enhanced.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Kuo-Cheng Wu, Chih-Chao Chang
  • Publication number: 20240154555
    Abstract: A propulsion system for a device includes an electric motor configured to generate torque to propel the device. A controller is in communication with the electric motor and is adapted to select at least one harmonic order for a harmonic current command. The controller is adapted to define a plurality of operating regions, including a first operating region, a second operating region and a third operating region, each associated with a respective objective function for generating the harmonic current command. The controller is adapted to operate the harmonic current command with four degrees of freedom by selectively varying a q-axis current magnitude, a d-axis current magnitude, a q-axis phase and a d-axis phase as a function of the torque and a motor speed.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 9, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vinod Chowdary Peddi, Cheng Gong, Le Chang, Song He
  • Publication number: 20240152679
    Abstract: Systems, methods, and devices are described herein for integrated circuit (IC) layout validation. A plurality of IC patterns are collected which include a first set of patterns capable of being manufactured and a second set of patterns incapable of being manufactured. A machine learning model is trained using the plurality of IC patterns. The machine learning model generates a prediction model for validating IC layouts. The prediction model receives data including a set of test patterns comprising scanning electron microscope (SEM) images of IC patterns. Design violations associated with an IC layout are determined based on the SEM images and the plurality of IC patterns. A summary of the design violations is provided for further characterization of the IC layout.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Inventors: Rachid Salik, Chin-Chang Hsu, Cheng-Chi Wu, Chien-Wen Chen, Wen-Ju Yang
  • Publication number: 20240154632
    Abstract: A switching circuit and a method of providing the switching circuit are provided. The switching circuit includes a first transmission amplifier, a second transmission amplifier, a third transmission amplifier, and a fourth transmission amplifier. The first transmission amplifier amplifies a first signal at a first connection port and transmits the first signal to a second connection port in a first mode. The second transmission amplifier amplifies a second signal at a third connection port and transmits the second signal to a fourth connection port in the first mode. The third transmission amplifier amplifies the first signal at the first connection port and transmits the first signal to the fourth connection port in the second mode. The fourth transmission amplifier amplifies the second signal at the third connection port and transmits the second signal to the second connection port in the second mode.
    Type: Application
    Filed: December 16, 2022
    Publication date: May 9, 2024
    Applicant: Industrial Technology Research Institute
    Inventors: Yu-Teng Chang, Yu-Cheng Hsu
  • Publication number: 20240154014
    Abstract: The present disclosure provides a forksheet structure in a semiconductor device and methods of manufacturing thereof. The forksheet structure according to the present disclosure includes a dielectric wall disposed between two channel regions inside a gate structure and without extending through the sidewall spacers to the source/drain regions. In some embodiments, a cut metal gate (CMG) dielectric structure is formed in the gate structure along with the dielectric walls. A gate dielectric layer is in contact with the dielectric wall. In some embodiments, the dielectric layer surrounds semiconductor channels in the channel region. In other embodiments, the gate dielectric layer surrounds a portion of the semiconductor channels in the channel region, for example forming a ?-shape cross sectional profile around the semiconductor channel.
    Type: Application
    Filed: February 7, 2023
    Publication date: May 9, 2024
    Inventors: Kuan-Ting PAN, Kuo-Cheng CHIANG, Shi Ning JU, Chia-Hao CHANG, Chih-Hao WANG
  • Publication number: 20240155185
    Abstract: A channel hiatus correction method for an HDMI device is provided. A recovery code from scrambled data of the stream is obtained. A liner feedback shift register (LFSR) value of channels of the HDMI port is obtained based on the recovery code and the scrambled data of the stream. The stream is de-scrambled according to the LFSR value of the channels of the HDMI port. Video data is displayed according to the de-scrambled stream.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 9, 2024
    Inventors: Chia-Hao CHANG, You-Tsai JENG, Kai-Wen YEH, Yi-Cheng CHEN, Te-Chuan WANG, Kai-Wen CHENG, Chin-Lung LIN, Tai-Lai TUNG, Ko-Yin LAI
  • Publication number: 20240154469
    Abstract: A container for containing food or liquid is provided. The container includes a body portion, a lid and an attachment. The lid is detachably disposed on the body portion. The attachment includes a magnetic attraction member and a connecting structure. The magnetic attraction member is independent from the lid and adapted to be magnetically connected to a mobile electronic device. The connecting structure is disposed between the magnetic attraction member and the container for selectively fixing the magnetic attraction member at a first position or a second position. At least a portion of the connecting structure is fixed to the container.
    Type: Application
    Filed: May 17, 2023
    Publication date: May 9, 2024
    Inventors: JUI-CHEN LU, CHING-YU WANG, YU-TING HUNG, YU-CHANG CHIANG, CHENG-CHE HO
  • Publication number: 20240153887
    Abstract: A semiconductor package structure includes a base having a first surface and a second surface opposite thereto, wherein the base comprises a wiring structure, a first electronic component disposed over the first surface of the base and electrically coupled to the wiring structure, a second electronic component disposed over the first surface of the base and electrically coupled to the wiring structure, wherein the first electronic component and the second electronic component are separated by a molding material, a first hole and a second hole formed on the second surface of the base, and a frame disposed over the first surface of the base, wherein the frame surrounds the first electronic component and the second electronic component.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 9, 2024
    Inventors: Tzu-Hung LIN, Chia-Cheng CHANG, I-Hsuan PENG, Nai-Wei LIU