Patents by Inventor Hung-Chun Chen
Hung-Chun Chen 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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Publication number: 20260173780Abstract: A method for forming a semiconductor device includes followings. A metal layer is formed to embedded in a first dielectric layer. An etch stop layer is formed over the metal layer and the first dielectric layer. A second dielectric layer is formed over the etch stop layer. A portion of the second dielectric layer is removed to expose a portion of the etch stop layer and to form a via by a dry etching process. The portion of the etch stop layer exposed by the second dielectric layer is removed to expose the metal layer and to form a damascene cavity by a wet etching process. A damascene structure is formed in the damascene cavity.Type: ApplicationFiled: February 8, 2026Publication date: June 18, 2026Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Han Chen, Hung-Chun Chen, Yuan-Chun Chien, Wei Tse Hsu, Yu-Yu Chen, Chien-Chih Chiu
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Patent number: 12640654Abstract: In an example embodiment, a method comprising identifying, by a primary-side controlled Universal Serial Bus Power Delivery (USB-PD) alternating current to direct current (AC-DC) converter, a first pulse, wherein the first pulse is received from a pulse transformer. The method further includes determining that a threshold duration of time is satisfied. In response to determining that the threshold duration of time is satisfied, the method includes identifying a second pulse, wherein the second pulse is received from the pulse transformer. The first pulse and the second pulse are used for control of a high-side field effect transistor (FET) and a low-side FET, where the high-side FET is coupled to an active clamp flyback (ACF) circuit and the low-side FET is coupled to a flyback transformer of the USB-PD AC-DC converter. In response to identifying the second pulse, the method further includes controlling operation of the high-side FET or the low-side FET.Type: GrantFiled: June 9, 2023Date of Patent: May 26, 2026Assignee: Infineon Technologies Americas Corp.Inventors: Soon Hwei Tan, Rajesh Karri, Hung-Chun Chen
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Patent number: 12588441Abstract: A method for forming a semiconductor device includes followings. A metal layer is formed to embedded in a first dielectric layer. An etch stop layer is formed over the metal layer and the first dielectric layer. A second dielectric layer is formed over the etch stop layer. A portion of the second dielectric layer is removed to expose a portion of the etch stop layer and to form a via by a dry etching process. The portion of the etch stop layer exposed by the second dielectric layer is removed to expose the metal layer and to form a damascene cavity by a wet etching process. A damascene structure is formed in the damascene cavity.Type: GrantFiled: June 16, 2022Date of Patent: March 24, 2026Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Han Chen, Hung-Chun Chen, Yuan-Chun Chien, Wei Tse Hsu, Yu-Yu Chen, Chien-Chih Chiu
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Publication number: 20250318247Abstract: The disclosure describes a p-GaN semiconductor device and a method for fabricating the same. The p-GaN semiconductor device includes a substrate, a nucleation layer, a buffer layer, a GaN layer, an AlGaN layer, at least one cathode, a p-GaN termination structure, and an anode. The nucleation layer, the buffer layer, the GaN layer, and the AlGaN layer are sequentially formed on the substrate. The cathode penetrates through the AlGaN layer and directly interfaces the GaN layer. The p-GaN termination structure is penetrated with a hole and formed on the AlGaN layer. The anode, formed on the p-GaN termination structure and the AlGaN layer, fills the hole.Type: ApplicationFiled: July 16, 2024Publication date: October 9, 2025Applicant: National Yang Ming Chiao Tung UniversityInventors: Tian-Li WU, Hung-Chun CHEN, Tzu-Heng LIN
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Publication number: 20240048053Abstract: In an example embodiment, a method comprising identifying, by a primary-side controlled Universal Serial Bus Power Delivery (USB-PD) alternating current to direct current (AC-DC) converter, a first pulse, wherein the first pulse is received from a pulse transformer. The method further includes determining that a threshold duration of time is satisfied. In response to determining that the threshold duration of time is satisfied, the method includes identifying a second pulse, wherein the second pulse is received from the pulse transformer. The first pulse and the second pulse are used for control of a high-side field effect transistor (FET) and a low-side FET, where the high-side FET is coupled to an active clamp flyback (ACF) circuit and the low-side FET is coupled to a flyback transformer of the USB-PD AC-DC converter. In response to identifying the second pulse, the method further includes controlling operation of the high-side FET or the low-side FET.Type: ApplicationFiled: June 9, 2023Publication date: February 8, 2024Applicant: Cypress Semiconductor CorporationInventors: Soon Hwei TAN, Rajesh KARRI, Hung-Chun CHEN
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Publication number: 20230411144Abstract: A method for forming a semiconductor device includes followings. A metal layer is formed to embedded in a first dielectric layer. An etch stop layer is formed over the metal layer and the first dielectric layer. A second dielectric layer is formed over the etch stop layer. A portion of the second dielectric layer is removed to expose a portion of the etch stop layer and to form a via by a dry etching process. The portion of the etch stop layer exposed by the second dielectric layer is removed to expose the metal layer and to form a damascene cavity by a wet etching process. A damascene structure is formed in the damascene cavity.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Han Chen, Hung-Chun Chen, Yuan-Chun Chien, Wei Tse Hsu, Yu-Yu Chen, Chien-Chih Chiu
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Patent number: 11643824Abstract: A floor frame includes at least two spaced longitudinal support strips and at least one lateral support strip. Each longitudinal support strip has longitudinal upper and lower portions and a pair of longitudinal side walls. A shoulder is designed on at least one of the pair longitudinal side walls and located between the longitudinal upper and lower portions. Two shoulders of the two longitudinal support strips are opposite to each other. The lateral support strip includes lateral upper and lower portions and a pair of lateral side walls. Two ends of the lateral support strip are placed on the two shoulders of the longitudinal support strips, respectively. A plurality of longitudinal and lateral support strips constitutes a grid-type structure under the distribution of longitudinal and lateral directions to provide the placement and fixation of a plurality of floor panels.Type: GrantFiled: September 30, 2021Date of Patent: May 9, 2023Inventor: Hung-Chun Chen
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Patent number: 11563589Abstract: A certificate management system includes an electronic device and a server. The electronic device is configured to transmit a certificate application request. The server is configured to sign a device certificate corresponding to the electronic device through an intermediate certificate device after receiving the certificate application request, and transmit the device certificate and the Internet address of the server to the electronic device. The electronic device stores the device certificate and the Internet address of the server to complete the certificate issuance operation.Type: GrantFiled: December 3, 2020Date of Patent: January 24, 2023Assignee: MOXA INC.Inventors: Chi-Yuan Kao, Yu-Chen Kao, Hung-Chun Chen, Chih-Hsiung Shih
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Patent number: 11477038Abstract: A certificate transfer system includes a first certificate management host and a certificate transfer management host. The first certificate management host is configured to generate a first certificate, sign an electronic device with the first certificate, and transmit a first Internet address to the electronic device to complete a certificate-issuance operation. The certificate transfer management host is configured to store a transfer device list and a second Internet address. When the first certificate management host receives the first certificate issued by the electronic device, the first certificate management host verifies that the first certificate is correct and determines that if the first certificate matches one of the certificates in the transfer device list, the first certificate management host returns the certificate transfer management host address to the electronic device.Type: GrantFiled: January 12, 2021Date of Patent: October 18, 2022Assignee: MOXA INC.Inventors: Chi-Yuan Kao, Yu-Chen Kao, Hung-Chun Chen, Chih-Hsiung Shih
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Publication number: 20220112729Abstract: A floor frame includes at least two spaced longitudinal support strips and at least one lateral support strip. Each longitudinal support strip has longitudinal upper and lower portions and a pair of longitudinal side walls. A shoulder is designed on at least one of the pair longitudinal side walls and located between the longitudinal upper and lower portions. Two shoulders of the two longitudinal support strips are opposite to each other. The lateral support strip includes lateral upper and lower portions and a pair of lateral side walls. Two ends of the lateral support strip are placed on the two shoulders of the longitudinal support strips, respectively. A plurality of longitudinal and lateral support strips constitutes a grid-type structure under the distribution of longitudinal and lateral directions to provide the placement and fixation of a plurality of floor panels.Type: ApplicationFiled: September 30, 2021Publication date: April 14, 2022Inventor: Hung-Chun Chen
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Publication number: 20220078032Abstract: A certificate transfer system includes a first certificate management host and a certificate transfer management host. The first certificate management host is configured to generate a first certificate, sign an electronic device with the first certificate, and transmit a first Internet address to the electronic device to complete a certificate-issuance operation. The certificate transfer management host is configured to store a transfer device list and a second Internet address. When the first certificate management host receives the first certificate issued by the electronic device, the first certificate management host verifies that the first certificate is correct and determines that if the first certificate matches one of the certificates in the transfer device list, the first certificate management host returns the certificate transfer management host address to the electronic device.Type: ApplicationFiled: January 12, 2021Publication date: March 10, 2022Inventors: Chi-Yuan KAO, Yu-Chen KAO, Hung-Chun CHEN, Chih-Hsiung SHIH
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Publication number: 20220078031Abstract: A certificate management system includes an electronic device and a server. The electronic device is configured to transmit a certificate application request. The server is configured to sign a device certificate corresponding to the electronic device through an intermediate certificate device after receiving the certificate application request, and transmit the device certificate and the Internet address of the server to the electronic device. The electronic device stores the device certificate and the Internet address of the server to complete the certificate issuance operation.Type: ApplicationFiled: December 3, 2020Publication date: March 10, 2022Inventors: Chi-Yuan KAO, Yu-Chen KAO, Hung-Chun CHEN, Chih-Hsiung SHIH
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Patent number: 11036028Abstract: A lens driving mechanism is provided, including a lens holder for holding a lens, a circuit board disposed at one side of the lens holder, a driving element, a position sensing element and an integrated circuit module. The position sensing element and the integrated circuit module are disposed on the circuit board, wherein the integrated circuit module includes a driving circuit unit electrically connected to the driving element, to move the lens holder relative to the circuit board.Type: GrantFiled: May 11, 2018Date of Patent: June 15, 2021Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Che-Ju Lan, Hung-Chun Chen
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Patent number: 10996166Abstract: An apparatus for detecting an object capable of emitting light. The apparatus comprises a light detector comprising at least two optical sensors capable of determining the intensity of the light; and a computer processing output signal generated by the optical sensors and comparing a result of the processing with a known result corresponding to a known type to determine whether the object belongs to the known type.Type: GrantFiled: August 25, 2017Date of Patent: May 4, 2021Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Hung-Chun Chen, Ming-Chia Li, Chang-Sheng Chu, Yu-Tang Li, Chung-Fan Chiou
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Patent number: 10412285Abstract: A lens driving mechanism is provided, including a lens holder, a circuit unit, a driving element, and an integrated circuit element. The lens holder is used for holding a lens. The circuit unit is disposed on a side of the lens holder. The driving element is used for driving the lens holder to move relative to the circuit unit. The integrated circuit element is electrically connected to the driving element and disposed on the circuit unit. The driving element is disposed between the lens holder and the integrated circuit element.Type: GrantFiled: January 9, 2018Date of Patent: September 10, 2019Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Che-Ju Lan, Hung-Chun Chen
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Patent number: 10295156Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.Type: GrantFiled: April 27, 2018Date of Patent: May 21, 2019Assignee: Taiwan Green Point Enterprises Co., Ltd.Inventors: Pen-Yi Liao, Chung-Ho Liu, Hung-Chun Chen
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Publication number: 20180329171Abstract: A lens driving mechanism is provided, including a lens holder for holding a lens, a circuit board disposed at one side of the lens holder, a driving element, a position sensing element and an integrated circuit module. The position sensing element and the integrated circuit module are disposed on the circuit board, wherein the integrated circuit module includes a driving circuit unit electrically connected to the driving element, to move the lens holder relative to the circuit board.Type: ApplicationFiled: May 11, 2018Publication date: November 15, 2018Inventors: Chao-Chang HU, Che-Ju LAN, Hung-Chun CHEN
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Publication number: 20180245777Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.Type: ApplicationFiled: April 27, 2018Publication date: August 30, 2018Applicant: TAIWAN GREEN POINT ENTERPRISES CO., LTD.Inventors: Pen-Yi LIAO, Chung-Ho LIU, Hung-Chun CHEN
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Publication number: 20180198962Abstract: A lens driving mechanism is provided, including a lens holder, a circuit unit, a driving element, and an integrated circuit element. The lens holder is used for holding a lens. The circuit unit is disposed on a side of the lens holder. The driving element is used for driving the lens holder to move relative to the circuit unit. The integrated circuit element is electrically connected to the driving element and disposed on the circuit unit. The driving element is disposed between the lens holder and the integrated circuit element.Type: ApplicationFiled: January 9, 2018Publication date: July 12, 2018Inventors: Chao-Chang HU, Che-Ju LAN, Hung-Chun CHEN
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Publication number: 20180149339Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.Type: ApplicationFiled: January 26, 2018Publication date: May 31, 2018Applicant: TAIWAN GREEN POINT ENTERPRISES CO., LTD.Inventors: Pen-Yi Liao, Chung-Ho Liu, Hung-Chun Chen