Patents by Inventor Chih Liu

Chih Liu 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: 12021140
    Abstract: A semiconductor structure and a method for forming a semiconductor structure are provided. The semiconductor structure includes a substrate; a gate electrode disposed within the substrate; a gate dielectric layer disposed within the substrate and surrounding the gate electrode; a plurality of first protection structures disposed over the gate electrode; a second protection structure disposed over the gate dielectric layer and contacting the gate dielectric layer; and a pair of source/drain regions on opposing sides of the gate dielectric layer.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: June 25, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Yi-Huan Chen, Chien-Chih Chou, Szu-Hsien Liu, Kong-Beng Thei, Huan-Chih Yuan, Jhu-Min Song
  • Patent number: 12022206
    Abstract: This disclosure provides systems, methods, and devices for image processing that support enhanced white balancing operations. In a first aspect, a method of image processing includes receiving first image data from an image sensor; determining to adjust a white balancing operation from a first white balance point to a second white balance point; determining a first intermediate white balance point based on the first white balance point, the second white balance point, and a white balance reference line; receiving second image data from the image sensor; and applying white balancing to the second image data based on the first intermediate white balance point. Other aspects and features are also claimed and described.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: June 25, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Wei-Chih Liu, Yi-Chun Hsu, Tsung-Yen Chen, Tai-Hsiang Jen
  • Patent number: 12021134
    Abstract: A semiconductor device includes a gate structure on a substrate, a first spacer on a sidewall of the gate structure, a second spacer on a sidewall of the first spacer, a third spacer on a sidewall of the second spacer, and first and second stacks of an epitaxial layer and a cap layer respectively disposed at first and second sides of the gate structure. Preferably, a part of the second spacer comprises an I-shape, the cap layer includes a planar top surface and an inclined sidewall, the cap layer contacts the second spacer and the third spacer directly, and the cap layer includes a vertical sidewall connected to the inclined sidewall.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: June 25, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chih Chuang, Chia-Jong Liu, Kuang-Hsiu Chen, Chung-Ting Huang, Chi-Hsuan Tang, Kai-Hsiang Wang, Bing-Yang Jiang, Yu-Lin Cheng, Chun-Jen Chen, Yu-Shu Lin, Jhong-Yi Huang, Chao-Nan Chen, Guan-Ying Wu
  • Patent number: 12015409
    Abstract: In some embodiments, a flip-flop is disposed as an integrated circuit layout on a flip-flop region of a semiconductor substrate. The flip-flop includes a first clock inverter circuit that resides within the flip-flop region, and a second clock inverter circuit residing within the flip-flop region. The first clock inverter circuit and the second clock inverter circuit are disposed on a first line. Master switch circuitry is made up of a first plurality of devices which are circumscribed by a master switch perimeter that resides within the flip-flop region of the integrated circuit layout. The master switch circuitry and the first clock inverter circuit are disposed on a second line perpendicular to the first line. Slave switch circuitry is operably coupled to an output of the master switch circuitry. The slave switch circuitry is made up of a third plurality of devices that are circumscribed by a slave switch perimeter.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: June 18, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chi-Lin Liu, Ting-Wei Chiang, Jerry Chang-Jui Kao, Hui-Zhong Zhuang, Lee-Chung Lu, Shang-Chih Hsieh, Che Min Huang
  • Patent number: 12002768
    Abstract: A semiconductor package and a manufacturing method for the semiconductor package are provided. The semiconductor package includes a molded semiconductor device, a first redistribution structure, and conductive vias. The molded semiconductor device comprises a sensor die with a first surface and a second surface opposite the first surface, wherein the sensor die has an input/output region and a sensing region at the first surface. The first redistribution structure is disposed on the first surface of the sensor die, wherein the first redistribution structure covers the input/output region and exposes the sensing region, and the first redistribution structure comprises a conductive layer having a redistribution pattern and a ring structure. The redistribution pattern is electrically connected with the sensor die. The ring structure surrounds the sensing region and is separated from the redistribution pattern, wherein the ring structure is closer to the sensing region than the redistribution pattern.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: June 4, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu-Chih Huang, Chih-Hao Chang, Po-Chun Lin, Chun-Ti Lu, Zheng-Gang Tsai, Shih-Wei Chen, Chia-Hung Liu, Hao-Yi Tsai, Chung-Shi Liu
  • Publication number: 20240175490
    Abstract: An electrical control apparatus of an internal speed change device of a wheel hub for gear switching has a control base and a lateral cover; a circuit board, a motor and a logic driving ring being assembled in an interior receiving space between the control base and the lateral cover; the circuit board being installed with at least one signal transmission contact joint; the logic driving ring being installed with at least one logic loop and a logic driving ring gear; wherein the circuit board is used to drive the motor so that a motor gear of the motor drives the logic driving ring to rotate; rotation of the logic driving ring drives the at least one logic loop to rotate and be positioned to an object position so as to complete electrically control gear switching.
    Type: Application
    Filed: November 24, 2022
    Publication date: May 30, 2024
    Inventor: Jen-Chih Liu
  • Publication number: 20240177905
    Abstract: A gapless ferrite structure for circulator or isolator includes a first base having a first flange and a first limit slot surrounded by the first flange, a second base having a second flange and a second limit slot surrounded by the second flange, a ferrite with two ends accommodated in the first limit slot and the second limit slot respectively, two limit magnets installed on the first base and the second base respectively and configured to be corresponsive to the ferrite to generate an attraction force on the ferrite, and two sealing units configured between an end of the ferrite and the first limit slot and between the other end of the ferrite and the second limit slot respectively. In this way, a gapless structure can be formed on a signal transmission path in a circulator or isolator.
    Type: Application
    Filed: November 30, 2022
    Publication date: May 30, 2024
    Applicant: Universal Microwave Technology, Inc.
    Inventors: TUNG-YI WU, SHENG-FENG YEH, WUN-KAI WU, SUNG-FAN LIU, CHIEN-CHIH LEE, JEN-TI PENG
  • Publication number: 20240178102
    Abstract: A package includes a frontside redistribution layer (RDL) structure, a semiconductor die on the frontside RDL structure, and a backside RDL structure on the semiconductor die including a first RDL, and a backside connector extending from a distal side of the first RDL and including a tapered portion having a width that decreases in a direction away from the first RDL, wherein the tapered portion includes a contact surface at an end of the tapered portion. A method of forming the package may include forming the backside redistribution layer (RDL) structure, attaching a semiconductor die to the backside RDL structure, forming an encapsulation layer around the semiconductor die on the backside RDL structure, and forming a frontside RDL structure on the semiconductor die and the encapsulation layer.
    Type: Application
    Filed: April 21, 2023
    Publication date: May 30, 2024
    Inventors: Chun-Ti LU, Hao-Yi TSAI, Chiahung LIU, Ken-Yu CHANG, Tzuan-Horng LIU, Chih-Hao CHANG, Bo-Jiun LIN, Shih-Wei CHEN, Pei-Rong NI, Hsin-Wei HUANG, Zheng GangTsai, Tai-You LIU, Steve SHIH, Yu-Ting HUANG, Steven SONG, Yu-Ching WANG, Tsung-Yuan YU, Hung-Yi KUO, CHung-Shi LIU, Tsung-Hsien CHIANG, Ming Hung TSENG, Yen-Liang LIN, Tzu-Sung HUANG, Chun-Chih CHUANG
  • Publication number: 20240175491
    Abstract: An electrical control apparatus of an internal speed change device of a wheel hub for gear switching has a control base and a lateral cover; a circuit board, a motor and a logic driving ring being assembled in an interior receiving space between the control base and the lateral cover; the circuit board being installed with at least one signal transmission contact joint; the logic driving ring being installed with at least one logic loop and a logic driving ring gear; wherein the circuit board is used to drive the motor so that a motor gear of the motor drives the logic driving ring to rotate; rotation of the logic driving ring drives the at least one logic loop to rotate and be positioned to an object position so as to complete electrically control gear switching.
    Type: Application
    Filed: June 12, 2023
    Publication date: May 30, 2024
    Inventor: JEN-CHIH LIU
  • Publication number: 20240173597
    Abstract: A glowing golf ball is provided. A mounting hole is mounted in a light permeable ball and a light emitting member is mounted in the mounting hole. The light emitting member consists of a tube, a light emitting cap, a miniature battery, and a tube base. The tube is provided with a mounting room for mounting the light emitting cap. A light source is disposed on the light emitting cap and the miniature battery is fixed on the tube base. When the tube base and the tube are covered and fixed by each other, the miniature battery and the light source of the light emitting cap are electrically connected. Thus the light source emits light for allowing golf players to see flight paths and final landing positions of the golf ball in a more eye-catching way under poor light condition.
    Type: Application
    Filed: November 30, 2022
    Publication date: May 30, 2024
    Inventor: HUNG-CHIH LIU
  • Publication number: 20240178536
    Abstract: A cross-coupling structure for dielectric cavity filters includes a base and a tuner. The base is communicated with plural resonant cavities, a side through hole and a blind hole, and has a first channel formed between two adjacent resonant cavities which are not used for producing cross-coupling, and a second channel the resonant cavities formed between two adjacent resonant cavities which are used for producing cross-coupling. The side through hole is penetrated through the base and communicated with the second channel. The blind hole is formed on a wall of the second channel and has an opening facing the side through hole. The tuner is entered into the second channel from the side through hole and extended into the blind hole and can be adjustably moved between the opening of the blind hole and the bottom of the blind hole to set a cross-coupling amount target value.
    Type: Application
    Filed: November 30, 2022
    Publication date: May 30, 2024
    Applicant: Universal Microwave Technology, Inc.
    Inventors: TUNG-YI WU, SHENG-FENG YEH, WUN-KAI WU, SUNG-FAN LIU, CHIEN-CHIH LEE, JEN-TI PENG
  • Patent number: 11996842
    Abstract: An integrated circuit includes a flip-flop circuit and a gating circuit. The flip-flop circuit is arranged to receive an input data for generating a master signal during a writing mode according to a first clock signal and a second clock signal, and to output an output data according to the first clock signal and the second clock signal during a storing mode. The gating circuit is arranged for generating the first clock signal and the second clock signal according to the master signal and an input clock signal. When the input clock signal is at a signal level, the first clock signal and the second clock signal are at different logic levels. When the input clock signal is at another signal level, the first clock signal and the second clock signal are at a same logic level determined according to a signal level of the master signal.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: May 28, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Greg Gruber, Chi-Lin Liu, Ming-Chang Kuo, Lee-Chung Lu, Shang-Chih Hsieh
  • Publication number: 20240168088
    Abstract: A voltage detection device includes a voltage divider circuit, a comparator circuit and a switch control circuit. The voltage divider circuit operates in a first mode based on a switching signal and divides a power voltage to generate an input voltage. The comparator circuit compares the input voltage with a set of reference voltages to generate a detection signal. The switch control circuit selectively adjusts a switching signal according to the detection signal after a predetermined period has elapsed from power-on of the power voltage so as to control the voltage divider circuit to switch from operating in the first mode to operating in a second mode. The first mode corresponds to a first target level of the power voltage, the second mode corresponds to a second target level of the power voltage, and the first target level is higher than the second target level.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 23, 2024
    Inventors: Wei-Ping WANG, Wei-Chih CHENG, Yen-Ping LIU
  • Patent number: 11986653
    Abstract: A wireless implant and associated system for motor function recovery after spinal cord injury, and more particularly a multi-channel wireless implant with small package size. The wireless implant can further be used in various medical applications, such as retinal prostheses, gastrointestinal implant, vagus nerve stimulation, and cortical neuromodulation. The system also includes a method and its implementation to acquire the impedance model of the electrode-tissue interface of the implant.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 21, 2024
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yi-Kai Lo, Wentai Liu, Victor R. Edgerton, Chih-Wei Chang
  • Patent number: 11981397
    Abstract: A control device of an internal speed change device of a wheel hub for clutching operation includes a rod; a lever installed on the rod; the lever being connected to a controlling claw sliding block; an electric sliding block installed on a lever sleeve; the lever sleeve serving to receive a back end of the lever; an electric bushing located at an outer side of the lever sleeve; a controlling ring located at an outer side of the electric bushing; and wherein force of attraction or repulsion between the controlling ring and the electric sliding block drives the electric sliding block to rotate or move axially so as to drive the lever to move forwards or backwards axially; and moving of the lever drives the controlling claw sliding block to control clutching of the internal speed change device.
    Type: Grant
    Filed: October 23, 2023
    Date of Patent: May 14, 2024
    Assignee: NEW KAILUNG GEAR CO., LTD.
    Inventor: Jen-Chih Liu
  • Publication number: 20240153875
    Abstract: A semiconductor device includes a first source/drain element on a first side of the semiconductor device, a second source/drain element on an opposing side of the semiconductor device, a backside contact including a first contact end on a first end of the first source/drain element and an opposing contact end in electrical communication with a backside power distribution network, a critical dimension of the first contact end is smaller than the critical dimension of the opposing contact end, and the backside contact is substantially aligned to the first source/drain element. The semiconductor device also includes and a source/drain placeholder material with a critical dimension of a middle portion of the source/drain placeholder material being larger than the critical dimension of both tend portions.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 9, 2024
    Inventors: Ruilong Xie, Koichi Motoyama, Chih-Chao Yang, Feng Liu
  • Patent number: 11975244
    Abstract: A glowing golf ball is provided. A mounting hole is mounted in a light permeable ball and a light emitting member is mounted in the mounting hole. The light emitting member consists of a tube, a light emitting cap, a miniature battery, and a tube base. The tube is provided with a mounting room for mounting the light emitting cap. A light source is disposed on the light emitting cap and the miniature battery is fixed on the tube base. When the tube base and the tube are covered and fixed by each other, the miniature battery and the light source of the light emitting cap are electrically connected. Thus the light source emits light for allowing golf players to see flight paths and final landing positions of the golf ball in a more eye-catching way under poor light condition.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: May 7, 2024
    Assignee: Guan Dai Technology Company Ltd.
    Inventor: Hung-Chih Liu
  • Patent number: 11979980
    Abstract: A first and second patterned circuit layer are formed on a first surface and a second surface of a base material. A first adhesive layer is formed on the first patterned circuit layer. A portion of the first surface is exposed by the first patterned circuit layer. The metal reflection layer covers the first insulation layer and a reflectance thereof is greater than or equal to 85%, there is no conductive material between the first patterned circuit layer and the metal reflection layer, and the first adhesive layer is disposed between the first patterned circuit layer and the first insulation layer. A transparent adhesive layer and a protection layer are formed on the metal reflection layer. The transparent adhesive layer is disposed between the metal reflection layer and the protection layer. The protection layer comprises a transparent polymer. The light transmittance is greater than or equal to 80%.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 7, 2024
    Assignee: UNIFLEX Technology Inc.
    Inventors: Cheng-I Tu, Ying-Hsing Chen, Meng-Huan Chia, Hsin-Ching Su, Yi-Chun Liu, Cheng-Chung Lai, Yuan-Chih Lee
  • Publication number: 20240140765
    Abstract: An overhead hoist transfer apparatus includes a rail assembly including a straight rail having an empty section, and a curved rail having a curved empty section; an engine including a first LSD having first and second wheels at two sides respectively; and a second LSD having third and fourth wheels at two sides respectively; a moving carriage driven by the engine and suspended from the rail assembly; first and second guide wheels disposed on the first LSD; third and fourth guide wheels disposed on the second LSD; and two guide boards disposed above a joining point of the straight rail and the curved rail. An elevation of the guide boards is equal to that of the guide wheels. The guide board includes a straight edge and a curved edge.
    Type: Application
    Filed: September 27, 2023
    Publication date: May 2, 2024
    Inventors: Jung-Chieh Chang, Yi-Sheng Chen, Jen-Yung Hsiao, Chia-Fu Hsiao, Wei-Qi Lao, Chen-Chih Chan, Caung-Yu Liu
  • Publication number: 20240138709
    Abstract: A care system monitoring method for sensing the movement state of a bedridden person is provided. The care system monitoring method includes the following stages. Initial-state information is sensed. A first warning signal is issued to remind the caregiver to perform a movement action on the bedridden person when the time that the bedridden person has been in the initial state exceeds the threshold period. First-state information (which is information that is collected when the bedridden person is in the first state) is sensed after completing the movement action. It is determined whether the bedridden person was moved correctly according to the initial-state information and the first-state information. The first-state information is reset as the initial-state information if it is determined that the bedridden person has been moved correctly. A second warning signal is issued if it is determined that the bedridden person has been moved incorrectly.
    Type: Application
    Filed: September 7, 2023
    Publication date: May 2, 2024
    Inventors: Cheng-Hsu CHOU, Wei-Chih LIU, Fang-Iy WU