Patents by Inventor Chun-Wei Chang
Chun-Wei 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).
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Publication number: 20250066899Abstract: A method includes: positioning a wafer on an electrostatic chuck of a physical vapor deposition apparatus, the wafer including an opening exposing a conductive feature; setting a temperature of the wafer to a room temperature; forming a tungsten thin film in the opening by the physical vapor deposition apparatus, the tungsten thin film including a bottom portion that is on an upper surface of the conductive feature exposed by the opening, a top portion that is on an upper surface of a dielectric layer through which the opening extends and a sidewall portion that is on a sidewall of the dielectric layer exposed by the opening; removing the top portion and the sidewall portion of the tungsten thin film from over the opening; and forming a tungsten plug in the opening on the bottom portion by selectively depositing tungsten by a chemical vapor deposition operation.Type: ApplicationFiled: August 23, 2023Publication date: February 27, 2025Inventors: Chun-Yen LIAO, I. LEE, Shu-Lan CHANG, Sheng-Hsuan LIN, Feng-Yu CHANG, Wei-Jung LIN, Chun-I TSAI, Chih-Chien CHI, Ming-Hsing TSAI, Pei Shan CHANG, Chih-Wei CHANG
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Patent number: 12235409Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.Type: GrantFiled: December 17, 2021Date of Patent: February 25, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Wen-Yu Tsai, Chien-Pang Chang, Chi-Wei Chi, Wei-Fong Hong, Chun-Hung Teng, Kuo-Chiang Chu
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Patent number: 12235410Abstract: An optical lens assembly includes, from an object side to an image side, at least four optical lens elements. At least one of the at least four optical lens elements includes an anti-reflective coating. The at least one optical lens element including the anti-reflective coating is made of a plastic material. The anti-reflective coating is arranged on an object-side surface or an image-side surface of the at least one optical lens element including the anti-reflective coating. The anti-reflective coating includes at least one coating layer. One of the at least one coating layer at the outer of the anti-reflective coating is made of ceramics. The anti-reflective coating includes a plurality of holes, and sizes of the plurality of holes adjacent to the outer of the anti-reflective coating are larger than sizes of the plurality of holes adjacent to the inner of the anti-reflective coating.Type: GrantFiled: January 17, 2022Date of Patent: February 25, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Wen-Yu Tsai, Chien-Pang Chang, Chi-Wei Chi, Wei-Fong Hong, Chun-Hung Teng, Kuo-Chiang Chu
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Patent number: 12219123Abstract: A method for rendering data of a three-dimensional image adapted to an eye position and a display system are provided. The method is used to render the three-dimensional image to be displayed in a three-dimensional space. In the method, a three-dimensional image data used to describe the three-dimensional image is obtained. The eye position of a user is detected. The ray-tracing information between the eye position and each lens unit of a multi-optical element module forms a region of visibility (RoV) that may cover a portion of the three-dimensional image in the three-dimensional space. When coordinating the physical characteristics of a display panel and the multi-optical element module, a plurality of elemental images can be obtained. The elemental images form an integral image that records the three-dimensional image data adapted to the eye position, and the integral image is used to reconstruct the three-dimensional image.Type: GrantFiled: July 8, 2021Date of Patent: February 4, 2025Assignee: LIXEL INC.Inventors: Chun-Hsiang Yang, Chih-Hung Ting, Kai-Chieh Chang, Hsin-You Hou, Chih-Wei Shih, Wei-An Chen, Kuan-Yu Chen
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Publication number: 20250019684Abstract: A method for maintaining lamellar structure of cell, configured to manufacture a lamellar cell product, comprises the following steps of: seeding a predetermined number of cells in a culture device containing a first culture medium and culturing the predetermined number of cells for a predetermined time to form a cell planar structure; placing a mold in the culture device to cover at least an outer portion of the cell planar structure; adding a gel into the culture device with the mold to envelop the cell planar structure; and separating the gel and the cell planar structure enveloped therein from the culture device and the mold to form the lamellar cell product.Type: ApplicationFiled: July 5, 2024Publication date: January 16, 2025Inventors: Hong-Nerng Ho, Heng-Yu Liu, Chen-Wei Lan, Chung-Wei Chang, Bo-He Chen, Chui Wei Wong, Chun-Lin Liu
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Publication number: 20250015246Abstract: A semiconductor device is provided, which includes an active region, a first semiconductor layer, a first metal element-containing structure, a first p-type or n-type layer, a second semiconductor layer and an insulating layer. The active region has a first surface and a second surface. The first semiconductor layer is at the first surface. The first metal element-containing structure covers the first semiconductor layer and comprising a first metal element. The first p-type or n-type layer is between the first semiconductor layer and the first metal element-containing structure. The second semiconductor layer is between the first semiconductor layer and the first p-type or n-type layer. The insulating layer covers a portion of the first semiconductor layer and a portion of the second semiconductor. The first p-type or n-type layer includes an oxygen element (O) and a second metal element and has a thickness less than or equal to 20 nm.Type: ApplicationFiled: September 23, 2024Publication date: January 9, 2025Inventors: Yu-Tsu LEE, Yi-Yang CHIU, Chun-Wei CHANG, Min-Hao YANG, Wei-Jen HSUEH, Yi-Ming CHEN, Shih-Chang LEE, Chung-Hao WANG
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Publication number: 20240421537Abstract: The present invention relates to a lockable connector assembly, including a wire-end connector and a board-end connector. The wire-end connector includes a first body and a locking member. The first body has a flexible positioning member and a side guide groove. The locking member is movably disposed in the side guide groove. When the locking member is located in an initial position, the wire-end connector is capable of being engaged with the board-end connector. When the locking member is moved from the initial position to an insertion position, the locking member is abutted against the flexible positioning member so that the flexible positioning member is fixedly disposed in the locked position.Type: ApplicationFiled: January 17, 2024Publication date: December 19, 2024Inventors: Hsien-Chang LIN, Chun-Wei CHANG
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Publication number: 20240407658Abstract: A method for obtaining a heart rate value by an optical sensing apparatus includes: receiving, by a first calculator in a processor and from a light receiver, a PPG signal; receiving, by a second calculator in the processor and from a motion sensor, a motion signal; determining, by the first calculator, a first heart rate value; determining, by the first calculator, a validity indicator according to the PPG signal; and determining, by the second calculator, a second heart rate value according to the PPG signal and the motion signal. When the validity indicator is determined to satisfy a predetermined requirement, the processor outputs the first heart rate value as the heart rate value. When the validity indicator is determined to not satisfy the predetermined requirement, the processor outputs the second heart rate value as the heart rate value.Type: ApplicationFiled: June 14, 2024Publication date: December 12, 2024Inventors: Jui-Wei Tsai, Chun-Wei Chang, Chieh Yin, Kai-Wei Chiu
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Publication number: 20240413268Abstract: A semiconductor device includes a semiconductor stack, a reflective structure, and a conductive structure. The semiconductor stack includes a first semiconductor structure, a second semiconductor structure and an active region located between the first semiconductor structure and the second semiconductor structure. The reflective structure is located at a side of semiconductor stack closed to the first semiconductor structure, and includes a first metal. The conductive structure locates between the reflective structure and the first semiconductor structure, and includes a first region overlapping with the active structure and a second region which does not overlap with the active structure. The first metal in the second region has a concentration smaller than 5 atomic percent.Type: ApplicationFiled: June 7, 2024Publication date: December 12, 2024Inventors: Yi-Yang CHIU, Chun-Yu LIN, Chun Wei CHANG, Yi-Ming CHEN, Chen OU, Hung-Yu CHOU, Liang-Yi WU, Hsiao-Chi YANG
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Publication number: 20240413069Abstract: A semiconductor structure includes a substrate, a through via penetrating the substrate, a trench capacitor, a first RDL, a second RDL, a contact feature, and a chip. The trench capacitor extends from a back surface toward a front surface of the substrate, wherein the trench capacitor is separated from an active area at the front surface of the substrate. The first RDL is disposed over the front surface and electrically connecting to the through via. The second RDL is disposed over the back surface of the substrate and electrically connecting to the through via and the trench capacitor. The contact feature is disposed over the second RDL and electrically connecting to the trench capacitor through the second RDL. The chip is bonded over the front surface of the substrate. A method of manufacturing the semiconductor structure is also provided.Type: ApplicationFiled: June 4, 2024Publication date: December 12, 2024Inventors: TZU-WEI CHIU, CHUN-WEI CHANG, WEI-CHIH CHEN, CHE-YEN HUANG
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Publication number: 20240394462Abstract: An electromigration (EM) sign-off methodology that utilizes a system for analyzing an integrated circuit design layout to identify heat sensitive structures, self-heating effects, heat generating structures, and heat dissipating structures. The EM sign-off methodology includes a memory and a processor configured for calculating adjustments of an evaluation temperature for a heat sensitive structure by calculating the effects of self-heating within the temperature sensitive structure as well as additional heating and/or cooling as a function of thermal coupling to surrounding heat generating structures and/or heat dissipating elements located within a defined thermal coupling volume or range of the heat sensitive structures.Type: ApplicationFiled: July 31, 2024Publication date: November 28, 2024Inventors: Hsien Yu TSENG, Amit KUNDU, Chun-Wei CHANG, Szu-Lin LIU, Sheng-Feng LIU
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Publication number: 20240388025Abstract: The connector assembly for a seat belt comprises a wire-end connector and a board-end connector. The wire-end connector and the board-end connector are respectively designed to form an integral structure of the shell and internal components using stoppers and hooks. When the wire-end connector is fitted with the board-end connector in a fitting direction, they are engaged with each other, thereby preventing relative movement in the fitting direction. The connector assembly further includes a multi-level waterproof design for preventing the connector assembly and the circuit board from moisture damage.Type: ApplicationFiled: January 9, 2024Publication date: November 21, 2024Inventors: Hsien-Chang LIN, Chun-Wei CHANG
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Publication number: 20240375236Abstract: A method includes bonding a first package component on a composite carrier, and performing a first polishing process on the composite carrier to remove a base carrier of the composite carrier. The first polishing process stops on a first layer of the composite carrier. A second polishing process is performed to remove the first layer of the composite carrier. The second polishing process stops on a second layer of the composite carrier. A third polishing process is performed to remove a plurality of layers in the composite carrier. The plurality of layers include the second layer, and the third polishing process stops on a dielectric layer in the first package component.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Inventors: Chun-Wei Chang, Ming-Fa Chen, Chao-Wen Shih, Ting-Chu Ko
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Publication number: 20240379357Abstract: Implantation mask formation techniques described herein include increasing an initial aspect ratio of a pattern in an implantation mask by non-lithography techniques, which may include forming a resist hardening layer on the implantation mask. The pattern may be formed by photolithography techniques to the initial aspect ratio that reduces or minimizes the likelihood of pattern collapse during formation of the pattern. Then, the resist hardening layer is formed on the implantation mask to increase the height of the pattern and reduce the width of the pattern, which increases the aspect ratio between the height of the openings or trenches and the width of the openings or trenches of the pattern. In this way, the pattern in the implantation mask may be formed to an ultra-high aspect ratio in a manner that reduces or minimizes the likelihood of pattern collapse during formation of the pattern.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Inventors: Wei-Chao CHIU, Yong-Jin LIOU, Yu-Wen CHEN, Chun-Wei CHANG, Ching-Sen KUO, Feng-Jia SHIU
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Publication number: 20240364052Abstract: A connector assembly comprises a wire end connector, a board end connector, and an operating element. The board end connector includes a base and an extending tube body, which laterally forms a protrusion. The wire end connector includes a body and a wire connecting portion. The body has a shell that forms a guide groove and a side hole. The operating element has a pivot portion, a first extending arm, and a second extending arm. When the board end connector and the wire end connector are in an initial state and the operating element is in an unlocked position, the second extending arm is away from the guide groove. When the board end connector and the wire end connector are switched to a mating state, the protrusion contacts the first extending arm, causing the operating element to rotate from the unlocked position to a locked position.Type: ApplicationFiled: November 20, 2023Publication date: October 31, 2024Inventors: Hsien-Chang LIN, Chun-Wei CHANG
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Patent number: 12128527Abstract: A quick-change vice base with improved structure, which comprises: a base body, a quick-change coupler, a moveable block set and a central bolt, wherein, the bottoms of the first moveable block and second moveable block are respectively locked with a moveable block positioning base, one end of the moveable block positioning base has a pushing block; when the lead screw rotates clockwise, the first moveable block and the second moveable block will move toward the quick-change coupler, so that the curved stopping blocks on the first moveable block and the second moveable block will be fitted into the recesses of the quick-change coupler; when the lead screw rotates anticlockwise, the first movable block and the second movable block will move away from the quick-change coupler and drive the moveable block positioning seat to move simultaneously.Type: GrantFiled: September 20, 2022Date of Patent: October 29, 2024Inventor: Chun-Wei Chang
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Patent number: 12131992Abstract: A semiconductor structure and method of manufacturing a semiconductor structure are provided. The semiconductor structure includes a package structure. The package structure includes a passivation layer formed over an interconnect structure; an electrically-conductive structure formed on the passivation layer and extending through the passivation layer to electrically contact the interconnect structure; a dielectric structure formed over the passivation layer and surrounding the electrically-conductive structure to expose at least a portion of a top surface of the electrically-conductive structure; and a metallic protection structure formed on the top surface of the electrically-conductive structure exposed from the dielectric structure. The top surface of the metallic protection structure is aligned with or lower than a top surface of the dielectric structure.Type: GrantFiled: October 19, 2023Date of Patent: October 29, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chun-Wei Chang, Hsuan-Ming Huang, Jian-Hong Lin, Ming-Hong Hsieh, Mingni Chang, Ming-Yih Wang
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Patent number: 12125956Abstract: A semiconductor device is provided, which includes a semiconductor stack and a first contact structure. The semiconductor stack includes an active layer and has a first surface and a second surface. The first contact structure is located on the first surface and includes a first semiconductor layer, a first metal element-containing structure and a first p-type or n-type layer. The first metal element-containing structure includes a first metal element. The first p-type or n-type layer physically contacts the first semiconductor layer and the first metal element-containing structure. The first p-type or n-type layer includes an oxygen element (O) and a second metal element and has a thickness less than or equal to 20 nm, and the first semiconductor layer includes a phosphide compound or an arsenide compound.Type: GrantFiled: March 16, 2021Date of Patent: October 22, 2024Assignee: EPISTAR CORPORATIONInventors: Yu-Tsu Lee, Yi-Yang Chiu, Chun-Wei Chang, Min-Hao Yang, Wei-Jen Hsueh, Yi-Ming Chen, Shih-Chang Lee, Chung-Hao Wang
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Patent number: D1062545Type: GrantFiled: May 7, 2023Date of Patent: February 18, 2025Assignees: Acer Incorporated, Acer Gadget Inc.Inventors: Yun Cheng, Ker-Wei Lin, Hao-Ming Chang, Chun-Ta Chen, Wei-Chen Lee, Chih-Yuan Chang
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Patent number: D1063712Type: GrantFiled: May 7, 2023Date of Patent: February 25, 2025Assignees: Acer Incorporated, Acer Gadget Inc.Inventors: Yun Cheng, Ker-Wei Lin, Hao-Ming Chang, Chun-Ta Chen, Wei-Chen Lee, Chih-Yuan Chang