Patents by Inventor Chih-Kai Hsu
Chih-Kai Hsu 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).
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Patent number: 12272693Abstract: A method for fabricating a semiconductor device includes the steps of: providing a substrate having a high-voltage (HV) region and a low-voltage (LV) region; forming a base on the HV region and fin-shaped structures on the LV region; forming a first insulating around the fin-shaped structures; removing the base, the first insulating layer, and part of the fin-shaped structures to form a first trench in the HV region and a second trench in the LV region; forming a second insulating layer in the first trench and the second trench; and planarizing the second insulating layer to form a first shallow trench isolation (STI) on the HV region and a second STI on the LV region.Type: GrantFiled: March 21, 2022Date of Patent: April 8, 2025Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chun-Ya Chiu, Chih-Kai Hsu, Ssu-I Fu, Yu-Hsiang Lin, Chien-Ting Lin, Chia-Jung Hsu, Chin-Hung Chen
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Publication number: 20250113589Abstract: A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, an isolation structure on the SDB structure, a first spacer adjacent to the isolation structure, a metal gate adjacent to the isolation structure, a shallow trench isolation (STI around the fin-shaped structure, and a second isolation structure on the STI. Preferably, a top surface of the first spacer is lower than a top surface of the isolation structure and a bottom surface of the first spacer is lower than a bottom surface of the metal gate.Type: ApplicationFiled: December 12, 2024Publication date: April 3, 2025Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Patent number: 12261086Abstract: A method for fabricating a semiconductor device includes first providing a substrate having a high-voltage (HV) region, a medium-voltage (MV) region, and a low-voltage (LV) region, forming a HV device on the HV region, and forming a LV device on the LV region. Preferably, the HV device includes a first base on the substrate, a first gate dielectric layer on the first base, and a first gate electrode on the first gate dielectric layer. The LV device includes a fin-shaped structure on the substrate, and a second gate electrode on the fin-shaped structure, in which a top surface of the first gate dielectric layer is even with a top surface of the fin-shaped structure.Type: GrantFiled: January 27, 2022Date of Patent: March 25, 2025Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Yu-Hsiang Lin, Chien-Ting Lin, Chun-Ya Chiu, Chia-Jung Hsu, Chin-Hung Chen
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Publication number: 20250088091Abstract: A power converter improving input overvoltage from output voltage drop is provided. The power converter includes a high-side switch, a low-side switch, a control circuit, a voltage threshold determining circuit and a voltage drop suppression circuit. The voltage threshold determining circuit determines whether or not an output voltage of the power converter is dropping to determine or adjust a voltage threshold. The voltage drop suppression circuit detects a voltage of a first terminal of the high-side switch. When the voltage drop suppression circuit determines that the detected voltage of the first terminal of the high-side switch is higher than the voltage threshold, the voltage drop suppression circuit pulls down the voltage of the first terminal of the high-side switch.Type: ApplicationFiled: November 13, 2023Publication date: March 13, 2025Inventors: CHUN-KAI HSU, CHIH-HENG SU
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Patent number: 12249913Abstract: An open-loop inductor current emulating circuit is provided. A current sensor circuit senses a current flowing through a first terminal of a low-side switch to output a current sensed signal. An emulation controller circuit outputs a plurality of charging current signals according to currents of a plurality of rising waveforms of the current sensed signal. The emulation controller circuit outputs a plurality of discharging current signals according to currents of a plurality of falling waveforms of the current sensed signal. A charging and discharging circuit generates a plurality of charging currents according to the charging current signals, and generates a plurality of discharging currents according to the discharging current signals. The charging and discharging circuit alternatively outputs the charging currents and the discharging currents to the capacitor to charge and discharge the capacitor multiple times, thereby achieving a purpose of emulating an inductor current.Type: GrantFiled: November 21, 2022Date of Patent: March 11, 2025Assignee: ANPEC ELECTRONICS CORPORATIONInventors: Chun-Kai Hsu, Chih-Heng Su
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Publication number: 20250081730Abstract: 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: ApplicationFiled: June 26, 2024Publication date: March 6, 2025Inventors: 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
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Publication number: 20250042068Abstract: A method for processing a curved plastic panel is to first form a hard coating layer, an optical function layer, and a printing layer on a flat plastic substrate, and then cut it into a predetermined shape, and then use a hot pressing and curving device to perform a hot pressing and curving process to the flat plastic substrate in order to make it becoming a curved plastic substrate. The hot pressing and curving device can simultaneously perform hot pressing during the heating process, and has the functions of real-time monitoring of the local temperature and the local curvature forming state, and then feedback to the local heating and curvature forming mechanism for adjustments. The monitoring of temperature and curvature can be divided into multiple stages, which can be monitored stage by stage and adjusted for heating or curvature forming to improve production yield.Type: ApplicationFiled: October 20, 2024Publication date: February 6, 2025Applicant: ENFLEX CORPORATIONInventors: Hsin Yuan CHEN, Chih Teng KU, Jui Lin HSU, Chun Kai WANG, Yu Ling CHIEN
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Patent number: 12216978Abstract: A layout method and a semiconductor device are disclosed. The layout method includes: generating a design layout by placing a cell, wherein the cell includes: a first conductive segment overlapping a source/drain region and disposed immediately adjacent to a first power rail, wherein the first conductive segment has a length substantially equal to a cell length; a second conductive segment; and a third conductive segment between the first and second conductive segments. The layout method further includes: providing a fourth conductive segment and a fifth conductive segment to the design layout, wherein the fourth and fifth conductive segments are aligned in a first direction.Type: GrantFiled: April 8, 2021Date of Patent: February 4, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Anurag Verma, Meng-Kai Hsu, Chih-Wei Chang, Sang-Chi Huang, Wei-Ling Chang, Hui-Zhong Zhuang
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Patent number: 12212926Abstract: A MEMS structure is provided. The MEMS structure includes a substrate and a backplate, the substrate has an opening portion, and the backplate is disposed on one side of the substrate and has acoustic holes. The MEMS structure also includes a diaphragm disposed between the substrate and the backplate, and the diaphragm extends across the opening portion of the substrate and includes outer ventilation holes and inner ventilation holes arranged in a concentric manner. The outer ventilation holes and the inner ventilation holes are relatively arranged in a ring shape and surround the center of the diaphragm. The MEMS structure further includes a pillar disposed between the backplate and the diaphragm. The pillar prevents the diaphragm from being electrically connected to the backplate.Type: GrantFiled: October 28, 2022Date of Patent: January 28, 2025Assignee: FORTEMEDIA, INC.Inventors: Wen-Shan Lin, Chun-Kai Mao, Chih-Yuan Chen, Jien-Ming Chen, Feng-Chia Hsu, Nai-Hao Kuo
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Patent number: 12211751Abstract: A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, an isolation structure on the SDB structure, a first spacer adjacent to the isolation structure, a metal gate adjacent to the isolation structure, a shallow trench isolation (STI around the fin-shaped structure, and a second isolation structure on the STI. Preferably, a top surface of the first spacer is lower than a top surface of the isolation structure and a bottom surface of the first spacer is lower than a bottom surface of the metal gate.Type: GrantFiled: December 28, 2023Date of Patent: January 28, 2025Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Patent number: 12207052Abstract: A MEMS structure is provided. The MEMS structure includes a substrate having an opening portion and a backplate disposed on one side of the substrate. The MEMS structure also includes a diaphragm disposed between the substrate and the backplate. The opening portion of the substrate is under the diaphragm, and an air gap is formed between the diaphragm and the backplate. The MEMS structure further includes a pillar structure connected with the backplate and the diaphragm and a protection post structure extending from the backplate into the air gap. From a top view of the backplate, the protection post structure surrounds the pillar structure.Type: GrantFiled: October 3, 2022Date of Patent: January 21, 2025Assignee: FORTEMEDIA, INC.Inventors: Chun-Kai Mao, Chih-Yuan Chen, Feng-Chia Hsu, Jien-Ming Chen, Wen-Shan Lin, Nai-Hao Kuo
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Publication number: 20240395909Abstract: A method for fabricating semiconductor device includes: forming a first semiconductor layer and an insulating layer on a substrate; removing the insulating layer and the first semiconductor layer to form openings; forming a second semiconductor layer in the openings; and patterning the second semiconductor layer, the insulating layer, and the first semiconductor layer to form fin-shaped structures.Type: ApplicationFiled: August 1, 2024Publication date: November 28, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chin-Hung Chen, Ssu-I Fu, Chih-Kai Hsu, Chia-Jung Hsu, Yu-Hsiang Lin
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Publication number: 20240379451Abstract: A method for fabricating semiconductor device includes the steps of: providing a substrate having a fin-shaped structure thereon; forming a single diffusion break (SDB) structure in the substrate to divide the fin-shaped structure into a first portion and a second portion; forming a first gate structure on the SDB structure; forming an interlayer dielectric (ILD) layer around the first gate structure; transforming the first gate structure into a first metal gate; removing the first metal gate to form a first recess; and forming a dielectric layer in the first recess.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Publication number: 20240371703Abstract: A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, a first isolation structure on the SDB structure, a shallow trench isolation (STI) adjacent to the SDB structure, and a second isolation structure on the STI. Preferably, the first isolation structure further includes a cap layer on the SDB structure and a dielectric layer on the cap layer.Type: ApplicationFiled: July 16, 2024Publication date: November 7, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Publication number: 20240371855Abstract: A semiconductor device includes a substrate having a high-voltage (HV) region, a medium-voltage (MV) region, and a low-voltage (LV) region, a HV device on the HV region, and a LV device on the LV region. Preferably, the HV device includes a first base on the substrate, a first gate dielectric layer on the first base, and a first gate electrode on the first gate dielectric layer. The LV device includes a fin-shaped structure on the substrate and a second gate electrode on the fin-shaped structure, in which a top surface of the first gate dielectric layer is lower than a top surface of the fin-shaped structure.Type: ApplicationFiled: July 15, 2024Publication date: November 7, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Yu-Hsiang Lin, Chien-Ting Lin, Chia-Jung Hsu, Chun-Ya Chiu, Chin-Hung Chen
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Publication number: 20240342219Abstract: The present invention is related to a method for treating and/or preventing Alzheimer's disease, especially using mitochondria for treatment and/or prevention of Alzheimer's disease.Type: ApplicationFiled: June 25, 2024Publication date: October 17, 2024Inventors: Han-Chung CHENG, Chi-Tang Tu, Chih-Kai Hsu
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Patent number: 12094783Abstract: A method for fabricating semiconductor device includes the steps of: providing a substrate having a fin-shaped structure thereon; forming a single diffusion break (SDB) structure in the substrate to divide the fin-shaped structure into a first portion and a second portion; forming a first gate structure on the SDB structure; forming an interlayer dielectric (ILD) layer around the first gate structure; transforming the first gate structure into a first metal gate; removing the first metal gate to form a first recess; and forming a dielectric layer in the first recess.Type: GrantFiled: June 14, 2023Date of Patent: September 17, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Patent number: 12094956Abstract: A method for fabricating semiconductor device includes: forming a first semiconductor layer and an insulating layer on a substrate; removing the insulating layer and the first semiconductor layer to form openings; forming a second semiconductor layer in the openings; and patterning the second semiconductor layer, the insulating layer, and the first semiconductor layer to form fin-shaped structures.Type: GrantFiled: June 6, 2023Date of Patent: September 17, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chin-Hung Chen, Ssu-I Fu, Chih-Kai Hsu, Chia-Jung Hsu, Yu-Hsiang Lin
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Patent number: 12074070Abstract: A semiconductor device includes a single diffusion break (SDB) structure dividing a fin-shaped structure into a first portion and a second portion, a first isolation structure on the SDB structure, a shallow trench isolation (STI) adjacent to the SDB structure, and a second isolation structure on the STI. Preferably, the first isolation structure further includes a cap layer on the SDB structure and a dielectric layer on the cap layer.Type: GrantFiled: June 14, 2023Date of Patent: August 27, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Chun-Ya Chiu, Chi-Ting Wu, Chin-Hung Chen, Yu-Hsiang Lin
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Patent number: 12068309Abstract: A method for fabricating a semiconductor device includes first providing a substrate having a high-voltage (HV) region, a medium-voltage (MV) region, and a low-voltage (LV) region, forming a HV device on the HV region, and forming a LV device on the LV region. Preferably, the HV device includes a first base on the substrate, a first gate dielectric layer on the first base, and a first gate electrode on the first gate dielectric layer. The LV device includes a fin-shaped structure on the substrate, and a second gate electrode on the fin-shaped structure, in which a top surface of the first gate dielectric layer is lower than a top surface of the fin-shaped structure.Type: GrantFiled: January 27, 2022Date of Patent: August 20, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Yu-Hsiang Lin, Chien-Ting Lin, Chia-Jung Hsu, Chun-Ya Chiu, Chin-Hung Chen