Patents by Inventor Wei-Fan Chen
Wei-Fan 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: 20250069881Abstract: Embodiments are directed to a method for minimizing electrostatic charges in a semiconductor substrate. The method includes depositing photoresist on a semiconductor substrate to form a photoresist layer on the semiconductor substrate. The photoresist layer is exposed to radiation. The photoresist layer is developed using a developer solution. The semiconductor substrate is cleaned with a first cleaning liquid to wash the developer solution from the photoresist layer. A tetramethylammonium hydroxide (TMAH) solution is applied to the semiconductor substrate to reduce charges accumulated in the semiconductor substrate.Type: ApplicationFiled: November 7, 2024Publication date: February 27, 2025Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei-Lin CHANG, Chih-Chien WANG, Chihy-Yuan CHENG, Sz-Fan CHEN, Chien-Hung LIN, Chun-Chang CHEN, Ching-Sen KUO, Feng-Jia SHIU
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Patent number: 12239012Abstract: A compound is disclosed that is selected from the group consisting of a structure having and a structure havingType: GrantFiled: May 24, 2023Date of Patent: February 25, 2025Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Hsiao-Fan Chen, Jason Brooks, Douglas Williams, Charles J. Stanton, III, Eugene S. Gutman, Wei Bao
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Publication number: 20250034189Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety A is a 5-membered or 6-membered ring; moiety B is a fused ring structure comprising at least four rings; K is a direct bond, O, or S; each of Z1 and Z2 is independently C or N; each RA and RB is independently hydrogen or a General Substituent; at least one RB comprises a cyclic group or an electron-withdrawing group; LA is coordinated to a metal M that has an atomic mass of at least 40 and is optionally coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products including the compound are also provided.Type: ApplicationFiled: August 23, 2024Publication date: January 30, 2025Applicant: Universal Display CorporationInventors: Jui-Yi TSAI, Alexey Borisovich Dyatkin, Walter Yeager, Pierre-Luc T. Boudreault, Hsiao-Fan Chen, Wei-Chun Shih, Derek Ian Wozniak
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Publication number: 20250028143Abstract: A driving mechanism for moving an optical element is provided, including a fixed part, a movable part, a driving assembly, and a first guiding member connected between the fixed part and the movable part. The optical element is disposed on the movable part, and the driving assembly drives the movable part to move relative to the fixed part. The first guiding member is configured for guiding the movable part to move relative to the fixed part.Type: ApplicationFiled: July 10, 2024Publication date: January 23, 2025Inventors: Po-Xiang ZHUANG, Yi-Fan LEE, Chao-Yuan CHANG, Wei-Jhe SHEN, Sin-Jhong SONG, Kun-Shih LIN, Yi-Ho CHEN, Chao-Chang HU
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Patent number: 12191403Abstract: A merged PiN Schottky (MPS) diode includes a substrate, a first epitaxial layer of a first conductivity type, doped regions of a second conductivity type, a second epitaxial layer of the first conductivity type, and a Schottky metal layer. The first epitaxial layer is disposed on the first surface of the substrate. The doped regions are disposed in a surface of the first epitaxial layer, wherein the doped regions consist of first portions and second portions, the first portions are electrically floating, and the second portions are electrically connected to a top metal. The second epitaxial layer is disposed on the surface of the first epitaxial layer, wherein trenches are formed in the second epitaxial layer to expose the second portions of the doped regions. The Schottky metal layer is conformally deposited on the second epitaxial layer and the exposed second portions of the doped regions.Type: GrantFiled: March 28, 2024Date of Patent: January 7, 2025Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 12166082Abstract: A silicon carbide semiconductor power transistor and a method of manufacturing the same. The silicon carbide semiconductor power transistor of the disclosure includes a substrate made of silicon carbide (SiC), a drift layer disposed on the substrate, a gate layer formed on the drift layer, a plurality of first and second well pick-up regions disposed in the drift layer, a plurality of source electrodes, and a plurality of contacts. A plurality of V-grooves is formed in the drift layer. A first opening is formed in the gate layer at a bottom of each of the V-grooves, and a second opening is formed in the gate layer at a top of the drift layer between the V-grooves. The plurality of contacts is disposed inside the second opening to be in direct contact with the second well pick-up regions.Type: GrantFiled: April 6, 2022Date of Patent: December 10, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 12154991Abstract: A wide-band gap semiconductor device and a method of manufacturing the same are provided. The wide-band gap semiconductor device of the disclosure includes a substrate, an epitaxial layer, an array of merged PN junction Schottky (MPS) diode, and an edge termination area surrounding the array of MPS diode. The epitaxial layer includes a first plane, a second plane, and trenches between the first plane and the second plane. The array of MPS diode is formed in the first plane of the epitaxial layer. The edge termination area includes a floating ring region having floating rings formed in the second plane of the epitaxial layer, and a transition region between the floating ring region and the array of MPS diode. The transition region includes a PIN diode formed in the plurality of trenches and on the epitaxial layer between the trenches.Type: GrantFiled: February 1, 2024Date of Patent: November 26, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 12149802Abstract: A real-world view display method applied to a video pass-through system, wherein the video pass-through system includes at least one grayscale camera, a color camera and at least one processor. The real-world view display method includes: by the at least one grayscale camera, capturing at least one grayscale image of a physical environment for generating a grayscale pass-through view corresponding to the physical environment; by the color camera, capturing at least one color image of the physical environment; and by the at least one processor, processing the grayscale pass-through view according to the at least one color image to render a color pass-through view in an immersive content, wherein the color pass-through view is corresponding to the physical environment.Type: GrantFiled: January 5, 2023Date of Patent: November 19, 2024Assignee: HTC CorporationInventor: Wei-Fan Chen
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Publication number: 20240347479Abstract: A semiconductor package includes a package substrate having a top surface and an opposing bottom surface. The package substrate includes a top build-up wiring layer and an upper dielectric layer covering the top build-up wiring layer. A semiconductor device and a passive component are mounted on the top surface of the package substrate in a side-by-side manner. A molding compound encapsulates the semiconductor device and the passive component on the top surface of the package substrate. A cavity is disposed between the passive component and the top surface of the package substrate.Type: ApplicationFiled: March 20, 2024Publication date: October 17, 2024Applicant: MEDIATEK INC.Inventors: Chu-Chia Chang, Pei-Haw Tsao, Peng-Yu Huang, Yu-Liang Hsiao, Wei-Fan Chen
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Patent number: 12095254Abstract: An electronic device and a temperature detection device thereof are provided. The temperature detection device includes a differential stage circuit and an output stage circuit. The differential stage circuit includes a first differential end and a second differential end, and includes a cross-coupled transistor element, a first resistor and a second transistor. The cross-coupled transistor element receives a first voltage. The first resistor is coupled between the first differential end and a second voltage, and the first resistor is poly-silicon resistor. The second resistor is coupled between the second differential end and the second voltage, and the second resistor is a silicon carbide diffusion resistor. The output stage circuit generates a driving voltage according to a first control voltage on the first differential end and a second control voltage on the second differential end.Type: GrantFiled: November 30, 2022Date of Patent: September 17, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 12068742Abstract: A short-circuit protection circuitry is adapted for a power transistor. The short-circuit protection circuitry includes a first diode, a first resistor, a voltage dividing circuit, a gate voltage generator, a pull-down circuit, and a control signal generator. The first diode is coupled to a drain of the power transistor. The first resistor is coupled between the first diode and the power transistor. The voltage dividing circuit is coupled between a gate and a source of the power transistor to generate a dividing voltage. The gate voltage generator provides a gate voltage to the gate of the power transistor according to a first driving signal and a second driving signal. The pull-down circuit pulls down the gate voltage according to a control signal. The control signal generator generates the control signal according to the first driving signal, a voltage on the anode of the first diode and the dividing voltage.Type: GrantFiled: July 14, 2022Date of Patent: August 20, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240234590Abstract: A merged PiN Schottky (MPS) diode includes a substrate, a first epitaxial layer of a first conductivity type, doped regions of a second conductivity type, a second epitaxial layer of the first conductivity type, and a Schottky metal layer. The first epitaxial layer is disposed on the first surface of the substrate. The doped regions are disposed in a surface of the first epitaxial layer, wherein the doped regions consist of first portions and second portions, the first portions are electrically floating, and the second portions are electrically connected to a top metal. The second epitaxial layer is disposed on the surface of the first epitaxial layer, wherein trenches are formed in the second epitaxial layer to expose the second portions of the doped regions. The Schottky metal layer is conformally deposited on the second epitaxial layer and the exposed second portions of the doped regions.Type: ApplicationFiled: March 28, 2024Publication date: July 11, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240170583Abstract: A wide-band gap semiconductor device and a method of manufacturing the same are provided. The wide-band gap semiconductor device of the disclosure includes a substrate, an epitaxial layer, an array of merged PN junction Schottky (MPS) diode, and an edge termination area surrounding the array of MPS diode. The epitaxial layer includes a first plane, a second plane, and trenches between the first plane and the second plane. The array of MPS diode is formed in the first plane of the epitaxial layer. The edge termination area includes a floating ring region having floating rings formed in the second plane of the epitaxial layer, and a transition region between the floating ring region and the array of MPS diode. The transition region includes a PIN diode formed in the plurality of trenches and on the epitaxial layer between the trenches.Type: ApplicationFiled: February 1, 2024Publication date: May 23, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 11990553Abstract: A merged PiN Schottky (MPS) diode includes a substrate, a first epitaxial layer of a first conductivity type, doped regions of a second conductivity type, a second epitaxial layer of the first conductivity type, and a Schottky metal layer. The first epitaxial layer is disposed on the first surface of the substrate. The doped regions are disposed in a surface of the first epitaxial layer, wherein the doped regions consist of first portions and second portions, the first portions are electrically floating, and the second portions are electrically connected to a top metal. The second epitaxial layer is disposed on the surface of the first epitaxial layer, wherein trenches are formed in the second epitaxial layer to expose the second portions of the doped regions. The Schottky metal layer is conformally deposited on the second epitaxial layer and the exposed second portions of the doped regions.Type: GrantFiled: March 31, 2022Date of Patent: May 21, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Patent number: 11955567Abstract: A wide-band gap semiconductor device and a method of manufacturing the same are provided. The wide-band gap semiconductor device of the disclosure includes a substrate, an epitaxial layer, an array of merged PN junction Schottky (MPS) diode, and an edge termination area surrounding the array of MPS diode. The epitaxial layer includes a first plane, a second plane, and trenches between the first plane and the second plane. The array of MPS diode is formed in the first plane of the epitaxial layer. The edge termination area includes a floating ring region having floating rings formed in the second plane of the epitaxial layer, and a transition region between the floating ring region and the array of MPS diode. The transition region includes a PIN diode formed in the plurality of trenches and on the epitaxial layer between the trenches.Type: GrantFiled: February 16, 2022Date of Patent: April 9, 2024Assignee: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240113512Abstract: An electronic device and a temperature detection device thereof are provided. The temperature detection device includes a differential stage circuit and an output stage circuit. The differential stage circuit includes a first differential end and a second differential end, and includes a cross-coupled transistor element, a first resistor and a second transistor. The cross-coupled transistor element receives a first voltage. The first resistor is coupled between the first differential end and a second voltage, and the first resistor is poly-silicon resistor. The second resistor is coupled between the second differential end and the second voltage, and the second resistor is a silicon carbide diffusion resistor. The output stage circuit generates a driving voltage according to a first control voltage on the first differential end and a second control voltage on the second differential end.Type: ApplicationFiled: November 30, 2022Publication date: April 4, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240106428Abstract: An electronic device and a temperature detection device thereof are provided. The temperature detection device includes a first resistor, a second resistor, and an operation circuit. The first resistor and the second resistor are coupled in series between a detection end and a first voltage. The first resistor and the second resistor divide a detection voltage on the detection end to generate a monitoring voltage. The operation circuit compares the monitoring voltage with a plurality of reference voltages to generate a plurality of comparison results. The operation circuit performs an operation on the comparison results to generate detection temperature information. The first resistor is a poly-silicon resistor and the second resistor is a silicon carbon (SiC) diffusion resistor.Type: ApplicationFiled: November 28, 2022Publication date: March 28, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240102869Abstract: A temperature sensing device includes a resistor string and a control circuitry. The resistor string includes a variable resistor, a first resistor, and a second resistor which are coupled in series with each other. The resistor string is coupled between a sensing end and a reference ground voltage. The first resistor and the second resistor are coupled to a monitoring end to provide a monitoring voltage. The control circuitry compares the monitoring voltage with a plurality of reference voltages to generate sensing temperature information, and generate adjustment information according to the sensing temperature information. The control circuitry adjusts a resistance provided by the variable resistor according to the adjustment information. The first resistor is a polysilicon resistor, and the second resistor is a silicon carbide diffusion resistor.Type: ApplicationFiled: November 2, 2022Publication date: March 28, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240102868Abstract: A driving voltage generating device includes a temperature detector, a controlling circuitry, a voltage generator, and an output stage circuitry. The temperature detector is coupled to a control terminal of a power transistor and is configured to generate temperature detection information by detecting an ambient temperature. The controlling circuitry is coupled to the temperature detector and generates an activation signal by determining whether the ambient temperature is abnormal according to the temperature detection information. The voltage generator generates an operation power according to the activation signal. The output stage circuitry is coupled to the voltage generator, generates a driving voltage according to the operation power, and provides the driving voltage to the control terminal of the power transistor.Type: ApplicationFiled: November 2, 2022Publication date: March 28, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai
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Publication number: 20240047569Abstract: A silicon carbide semiconductor power transistor includes a silicon carbide substrate, a first drift layer, a second drift layer on the substrate with V-grooves, buried doped regions in the first drift layer below the V-grooves, gates in the V-grooves, a gate insulation layer, a delta doping layer, a well region, source regions, well pick-up regions, conductive trenches, and doping portions. Each of the buried doped regions is a predetermined distance from a bottom of each of the V-grooves. The delta doping layer is disposed in the second drift layer, and the V-grooves are across the delta doping layer. The conductive trenches are disposed in the second drift layer, and each of the conductive trenches passes through the well pick-up regions and contacts with the well region. The doping portions are respectively on sidewalls of the conductive trenches in the well region.Type: ApplicationFiled: August 8, 2022Publication date: February 8, 2024Applicant: LEAP Semiconductor Corp.Inventors: Wei-Fan Chen, Kuo-Chi Tsai