Patents by Inventor Yung-Chuan HSU
Yung-Chuan 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: 11923433Abstract: A method for manufacturing a semiconductor device includes forming a first dielectric layer over a semiconductor fin. The method includes forming a second dielectric layer over the first dielectric layer. The method includes exposing a portion of the first dielectric layer. The method includes oxidizing a surface of the second dielectric layer while limiting oxidation on the exposed portion of the first dielectric layer.Type: GrantFiled: March 9, 2021Date of Patent: March 5, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Sheng-Liang Pan, Yungtzu Chen, Chung-Chieh Lee, Yung-Chang Hsu, Chia-Yang Hung, Po-Chuan Wang, Guan-Xuan Chen, Huan-Just Lin
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Patent number: 10651750Abstract: A constant on-time isolated converter comprises a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: GrantFiled: March 11, 2019Date of Patent: May 12, 2020Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Publication number: 20190207528Abstract: A constant on-time isolated converter comprises a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: ApplicationFiled: March 11, 2019Publication date: July 4, 2019Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Patent number: 10270353Abstract: A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient.Type: GrantFiled: December 7, 2014Date of Patent: April 23, 2019Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Patent number: 9960664Abstract: A voltage converter comprises a second controller as a power switch of the secondary side of the transformer for comparing a detection voltage representing an output voltage and/or load current with a first reference voltage and generating a control signal, and a coupling element for transmitting the control signal generated by the second controller to the first controller on the primary side of the transformer enabling the first controller to generate a first pulse signal driving the power switch to control the on/off state of the primary side winding.Type: GrantFiled: August 18, 2016Date of Patent: May 1, 2018Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Tien-Chi Lin, Yu-Ming Chen, Jung-Pei Cheng, Yung-Chuan Hsu, Yueh-Ping Yu, Wei-Ting Wang, Pei-Lun Huang
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Patent number: 9882500Abstract: The present invention relates to a power supply device for voltage converter, which includes a master switch, a first controller for generating a first pulse signal to drive the master switch to be turned on and turned off, a second controller for comparing a detection voltage representing an output voltage and/or load current with a first reference voltage to determine the logic state of a control signal generated by the second controller, and a coupling element connected between the first controller and the second controller for transmitting the logic state of the control signal to the first controller and enabling the first controller to determine the logic state of the first pulse signal according to the logic state of the control signal. The second controller includes a driving module for generating a second control signal to drive a synchronous switch to be turned on and turned off.Type: GrantFiled: August 18, 2016Date of Patent: January 30, 2018Assignee: Alpha & Omega Semiconductor (Cayman), Ltd.Inventors: Tien-Chi Lin, Yu-Ming Chen, Jung-Pei Cheng, Yung-Chuan Hsu, Yueh-Ping Yu, Wei-Ting Wang, Pei-Lun Huang
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Patent number: 9577542Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: GrantFiled: December 7, 2014Date of Patent: February 21, 2017Assignee: Alpha & Omega Semiconductor (Cayman), Ltd.Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Patent number: 9548667Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: GrantFiled: December 7, 2014Date of Patent: January 17, 2017Assignee: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Publication number: 20160359421Abstract: The present invention relates to a power supply device for voltage converter, which includes a master switch, a first controller for generating a first pulse signal to drive the master switch to be turned on and turned off, a second controller for comparing a detection voltage representing an output voltage and/or load current with a first reference voltage to determine the logic state of a control signal generated by the second controller, and a coupling element connected between the first controller and the second controller for transmitting the logic state of the control signal to the first controller and enabling the first controller to determine the logic state of the first pulse signal according to the logic state of the control signal. The second controller includes a driving module for generating a second control signal to drive a synchronous switch to be turned on and turned off.Type: ApplicationFiled: August 18, 2016Publication date: December 8, 2016Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Tien-Chi Lin, Yu-Ming Chen, Jung-Pei Cheng, Yung-Chuan Hsu, Yueh-Ping Yu, Wei-Ting Wang, Pei-Lun Huang
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Publication number: 20160359419Abstract: A voltage converter comprises a second controller as a power switch of the secondary side of the transformer for comparing a detection voltage representing an output voltage and/or load current with a first reference voltage and generating a control signal, and a coupling element for transmitting the control signal generated by the second controller to the first controller on the primary side of the transformer enabling the first controller to generate a first pulse signal driving the power switch to control the on/off state of the primary side winding.Type: ApplicationFiled: August 18, 2016Publication date: December 8, 2016Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Tien-Chi Lin, Yu-Ming Chen, Jung-Pei Cheng, Yung-Chuan Hsu, Yueh-Ping Yu, Wei-Ting Wang, Pei-Lun Huang
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Publication number: 20160085269Abstract: A touch panel includes a flexible transparent substrate, a metal electrode and plural metal traces. The flexible transparent substrate includes a main segment, a first lateral segment, a second lateral segment, a first bent part and a second bent part. The metal electrode is disposed on a first surface of the flexible transparent substrate and distributed on the main segment, the first bent part and the second bent part, wherein a transparent touch zone is defined by the metal electrode. The plural metal traces are disposed over the flexible transparent substrate and distributed on a peripheral region of the transparent touch zone. The plural metal traces are extended to the main segment, the first bent part, the second bent part, the first lateral segment and the second lateral segment so as to be electrically connected with the metal electrode.Type: ApplicationFiled: November 10, 2014Publication date: March 24, 2016Inventors: Yu-Chou Yeh, Ting-Ching Lin, Yung-Chuan Hsu, Jia-Hao Kang
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Publication number: 20160079877Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: ApplicationFiled: December 7, 2014Publication date: March 17, 2016Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Publication number: 20160079876Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.Type: ApplicationFiled: December 7, 2014Publication date: March 17, 2016Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Publication number: 20160079874Abstract: A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient.Type: ApplicationFiled: December 7, 2014Publication date: March 17, 2016Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
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Publication number: 20150061700Abstract: A capacitive sensor applies to a capacitive touch panel and includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of virtual electrodes. The first electrodes each have a first wire portion. The second electrodes are disposed beneath and insulated from the first electrodes, and cross the first electrodes. The second electrodes each have a second wire portion. The virtual electrodes are each disposed between and spaced from two corresponding ones of the first electrodes. The virtual electrodes each include a plurality of continuous portions and a plurality of interrupted portions. The interrupted portions each overlap a corresponding one of the second wire portions of the second electrodes. The width of each of the interrupted portions is less than or equal to the width of the corresponding second wire portion.Type: ApplicationFiled: December 18, 2013Publication date: March 5, 2015Applicant: J TOUCH CorporationInventors: Yu-Chou YEH, Ting-Ching LIN, Kun-Ming CHANG, Yi-Chin CHEN, Yung-Chuan HSU