Patents by Inventor Po-Han Chen
Po-Han 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: 20260144005Abstract: A method for forming surface structure of electrostatic chuck used in semiconductor manufacturing processes is disclosed. The method includes depositing a first protective coating on a substrate and depositing a second protective coating on the first protective coating. In some embodiments, the first protective coating is formed by thermal spraying and is made from materials selected from groups comprising metal oxides, fluorides, and nitrides. The second protective coating is formed by physical vapor deposition and provides a high-density coating having a higher hardness than the first protective coating. In some embodiments, the second protective coating has a porosity of less than 1%.Type: ApplicationFiled: January 12, 2026Publication date: May 21, 2026Inventors: Tsung-Feng Wu, Guo-Yang Ciou, Chia-Te Lin, Po-Han Chen, Po-Chia Huang
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Publication number: 20260074431Abstract: The invention provides a frequency selective surface structure including a substrate and at least one conductive layer. The at least one conductive layer is disposed on the substrate and includes four central double-frequency patches. The four central double-frequency patches are spaced apart from one another and are arranged in a 2×2 array. In each of the four central double-frequency patches, the central double-frequency patch is in a polygonal shape and has a central corner part, a plurality of outer corner parts and a plurality of notches, the central corner part is located closer to a geometric center of the at least one conductive layer than the plurality of outer corner parts, and the plurality of notches are located on the plurality of outer corner parts, respectively.Type: ApplicationFiled: December 17, 2024Publication date: March 12, 2026Applicants: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATIONInventors: Po-Han CHEN, Hao-Hsiang WANG, Yu Shu TAI, Hsin-Hung LIN, Wei-Chen CHENG
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Publication number: 20250191955Abstract: The present invention relates to the surface structure of an electrostatic chuck used in semiconductor manufacturing processes. The surface structure comprises a substrate, a first protective coating disposed on the substrate, and a second protective coating disposed on the first protective coating. The first protective coating is deposited on the substrate and is made from materials selected from groups comprising metal oxides, fluorides, and nitrides. It serves as a universal protective barrier against wear, corrosion, and thermal effects. The second protective coating, which is deposited on the first protective coating, possesses a higher hardness than the first protective coating, thereby providing enhanced wear resistance. Additionally, the present invention offers a versatile and effective solution for improving the performance and lifespan of electrostatic chucks in semiconductor manufacturing.Type: ApplicationFiled: November 12, 2024Publication date: June 12, 2025Inventors: Tsung-Feng Wu, Guo-Yang Ciou, Chia-Te Lin, Po-Han Chen, Po-Chia Huang
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Publication number: 20250159835Abstract: A multi-node server includes a server chassis, a main circuit board, a power delivery circuit board, and a signal transfer module. The main circuit board has a first node area and a second node area. The power delivery circuit board is disposed vertically on the main circuit board. A first side of the power delivery circuit board has a first power input connector and a second power input connector. A second side of the power delivery circuit board has a first power output connector facing the first node area and a second power output connector facing the second node area. The signal transfer module has a signal transfer circuit board, a first signal connector, and a second signal connector. The signal transfer circuit board is parallel to the main circuit board. The signal transfer circuit board electrically connects the first signal connector to the second signal connector.Type: ApplicationFiled: October 8, 2024Publication date: May 15, 2025Inventors: PO-HAN CHEN, WEI-CHENG LIU
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Patent number: 12235197Abstract: An automatic processing device for liquid samples includes a sample region, a control module, an image identification device and a centrifuge. The sample region is configured to accommodate a plurality of centrifuge tubes. The control module includes a mechanical module. The mechanical module is configured to unscrew or tighten upper caps of the centrifuge tubes, and is configured to draw liquid from the centrifuge tubes or discharge liquid to the centrifuge tubes. The image identification device is coupled to the control module. The centrifuge is coupled to the control module. The centrifuge is configured to accommodate the centrifuge tubes and perform centrifugal treatment.Type: GrantFiled: April 21, 2021Date of Patent: February 25, 2025Assignees: CANCER FREE BIOTECH LTD., SONGYI SYSTEM CO., LTD.Inventors: Po-Han Chen, Shih-Pei Wu, Yi-Hsuan Chen, Chung-I Chen, Chun-Chieh Chiang, Chi-Ming Lee
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Publication number: 20250051901Abstract: A method for the surface treatment of a corrosion-resistant nickel-based alloy and the resulting surface structure of the treated alloy is disclosed. The method includes immersing a nickel-based alloy in a first neutral or alkaline solution to remove surface contaminants, followed by immersing the cleaned alloy in a second neutral or alkaline solution to form functional groups on its surface. Subsequently, a low-temperature heat treatment is performed to form a passivation layer on the surface of the nickel-based alloy. The passivation layer has a surface roughness of less than 0.04 microns and a thickness ranging from 5 nanometers to 200 nanometers. The resulting corrosion-resistant nickel-based alloy comprises a substrate made of the nickel-based alloy and a passivation layer established on at least one surface of the substrate. The nickel content of the alloy is greater than 50%, and the alloy may also contain additional metallic components such as chromium (Cr) and manganese (Mn).Type: ApplicationFiled: April 3, 2024Publication date: February 13, 2025Inventors: Tsung Feng Wu, Chun-Chih Liao, Po-Chia Huang, Guo-Yang Ciou, Chia-Te Lin, Po-Han Chen
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Publication number: 20250048764Abstract: An image sensor includes a substrate. The image sensor includes a first photodiode (PD) having a first size in the substrate. The image sensor further includes a second PD having a second size in the substrate, wherein the first size is different from the second size. The image sensor further includes a first layer, wherein the first layer comprises a metal material or a dielectric material, and the first layer defines sidewalls of a first recess aligned with the first PD. The image sensor further includes a second layer in the first recess, wherein a portion of the first layer aligned with the second PD is free of the second layer, and the second layer overhangs the first layer.Type: ApplicationFiled: October 22, 2024Publication date: February 6, 2025Inventors: Po-Han CHEN, Chen-Chu CHEN, Fu-Cheng CHANG, Kuo-Cheng LEE
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Publication number: 20240399124Abstract: An expandable vaginal dilator includes a stretchable sheath defining at least one fluid chamber therein and being shaped and sized according to vaginal measurements and physical examination. A support within the sheath seals and holds the sheath and provides one or more fluid channels configured for delivery of fluid into the at least one fluid chamber to expand the sheath. The support is configured to permit vaginal insertion of the sheath when the sheath is in an unexpanded state and to stabilize the sheath during expansion of the sheath. One or both of the sheath and support can be sized and shaped according to the physical exam of a patient. One or both of the sheath and support can be configured to provide differential expansion according to the physical patient information and a treatment plan.Type: ApplicationFiled: October 19, 2022Publication date: December 5, 2024Inventors: Rafaela SIMOES-TORIGOE, Jyoti MAYADEV, Milan MAKALE, Karcher MORRIS, Matthew KOHANFARS, Po-Han CHEN, Shengfan HU, Yu LI, Casey WILLIAMSON, Frank TALKE
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Publication number: 20240379704Abstract: Photosensors may be formed on a front side of a semiconductor substrate. An optical refraction layer having a first refractive index may be formed on a backside of the semiconductor substrate. A grid structure including openings is formed over the optical refraction layer. A masking material layer is formed over the grid structure and the optical refraction layer. The masking material layer may be anisotropically etched using an anisotropic etch process that collaterally etches a material of the optical refraction layer and forms non-planar distal surface portions including random protrusions on physically exposed portions of the optical refraction layer. An optically transparent layer having a second refractive index that is different from the first refractive index may be formed on the non-planar distal surface portions of the optical refraction layer. A refractive interface refracts incident light in random directions, and improves quantum efficiency of the photosensors.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Inventors: Po-Han CHEN, Kuo-Cheng LEE, Fu-Cheng CHANG
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Patent number: 12125864Abstract: A method of making an image sensor includes depositing a shield layer over a substrate, wherein the substrate comprises a first photodiode (PD) and a second PD. The method further includes etching the shield layer to define a first recess aligned with the first PD and a second recess aligned with the second PD. The method further includes depositing a flicker reduction layer in the first recess and in the second recess. The method further includes etching the flicker reduction layer to remove the flicker reduction layer from the first recess.Type: GrantFiled: May 17, 2023Date of Patent: October 22, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Po-Han Chen, Chen-Chun Chen, Fu-Cheng Chang, Kuo-Cheng Lee
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Patent number: 12107104Abstract: Photosensors may be formed on a front side of a semiconductor substrate. An optical refraction layer having a first refractive index may be formed on a backside of the semiconductor substrate. A grid structure including openings is formed over the optical refraction layer. A masking material layer is formed over the grid structure and the optical refraction layer. The masking material layer may be anisotropically etched using an anisotropic etch process that collaterally etches a material of the optical refraction layer and forms non-planar distal surface portions including random protrusions on physically exposed portions of the optical refraction layer. An optically transparent layer having a second refractive index that is different from the first refractive index may be formed on the non-planar distal surface portions of the optical refraction layer. A refractive interface refracts incident light in random directions, and improves quantum efficiency of the photo sensors.Type: GrantFiled: July 18, 2022Date of Patent: October 1, 2024Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Po-Han Chen, Kuo-Cheng Lee, Fu-Cheng Chang
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Publication number: 20240049418Abstract: A chassis includes a housing, a first bearing seat, a second bearing seat, and a connecting partition plate. The housing has an accommodating space. The first bearing seat is movably disposed in the accommodating space. The second bearing seat is movably disposed in the accommodating space and is adjacent to the first bearing seat. The connecting partition plate is disposed between the first bearing seat and the second bearing seat to fixedly connect the first bearing seat and the second bearing seat. The first bearing seat and the second bearing seat are adapted to synchronously move relative to the housing to be accommodated in the accommodating space or extend outside the accommodating space.Type: ApplicationFiled: May 26, 2023Publication date: February 8, 2024Applicant: PEGATRON CORPORATIONInventor: Po-Han Chen
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Publication number: 20240005159Abstract: A simplification device and a simplification method for neural network model are provided. The simplification method may simplify an original trained neural network model to a simplified trained neural network model, wherein the simplified trained neural network model includes at most two linear operation layers. The simplification method includes: converting the original trained neural network model into an original mathematical function; performing an iterative analysis operation on the original mathematical function to simplify the original mathematical function to a simplified mathematical function, wherein the simplified mathematical function has a new weight; computing the new weight by using multiple original weights of the original trained neural network model; and converting the simplified mathematical function to the simplified trained neural network model.Type: ApplicationFiled: August 22, 2022Publication date: January 4, 2024Applicant: NEUCHIPS CORPORATIONInventors: Po-Han Chen, Yi Lee, Kai-Chiang Wu, Youn-Long Lin, Juinn-Dar Huang
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Publication number: 20230299104Abstract: A method of making an image sensor includes depositing a shield layer over a substrate, wherein the substrate comprises a first photodiode (PD) and a second PD. The method further includes etching the shield layer to define a first recess aligned with the first PD and a second recess aligned with the second PD. The method further includes depositing a flicker reduction layer in the first recess and in the second recess. The method further includes etching the flicker reduction layer to remove the flicker reduction layer from the first recess.Type: ApplicationFiled: May 17, 2023Publication date: September 21, 2023Inventors: Po-Han CHEN, Chen-Chun CHEN, Fu-Cheng CHANG, Kuo-Cheng LEE
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Publication number: 20230207594Abstract: Photosensors may be formed on a front side of a semiconductor substrate. An optical refraction layer having a first refractive index may be formed on a backside of the semiconductor substrate. A grid structure including openings is formed over the optical refraction layer. A masking material layer is formed over the grid structure and the optical refraction layer. The masking material layer may be anisotropically etched using an anisotropic etch process that collaterally etches a material of the optical refraction layer and forms non-planar distal surface portions including random protrusions on physically exposed portions of the optical refraction layer. An optically transparent layer having a second refractive index that is different from the first refractive index may be formed on the non-planar distal surface portions of the optical refraction layer. A refractive interface refracts incident light in random directions, and improves quantum efficiency of the photosensors.Type: ApplicationFiled: February 13, 2023Publication date: June 29, 2023Inventors: Po-Han CHEN, Kuo-Cheng LEE, Fu-Cheng CHANG
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Patent number: 11676980Abstract: An image sensor includes a substrate and a first photodiode (PD) having a first size in the substrate. The image sensor further includes a second PD having a second size in the substrate, wherein the first size is different from the second size. The image sensor further includes a first buffer layer over the substrate. The image sensor further includes a shield layer over the first buffer, wherein the first buffer layer and the shield layer define a first recess aligned with the first PD and a second recess aligned with the second PD. The image sensor further includes a flicker reduction layer in the first recess, wherein the second recess is free of the flicker reduction layer.Type: GrantFiled: October 7, 2019Date of Patent: June 13, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Po-Han Chen, Chen-Chun Chen, Fu-Cheng Chang, Kuo-Cheng Lee
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Publication number: 20230074209Abstract: A method for providing drug recommendation includes: calculating a plurality of relative cell viabilities respectively corresponding to a plurality of candidate drugs based on viable cell counts of a patient's circulating tumor cell (CTC)-derived organoid cultures and viable cell counts of the CTC-derived organoid cultures respectively reacted with the candidate drugs; and providing drug recommendation of the candidate drugs based on the relative cell viabilities. A device for providing drug recommendation is also provided.Type: ApplicationFiled: October 15, 2021Publication date: March 9, 2023Inventors: Po-Han CHEN, Shih-Pei Wu, Yi-Hsuan Chen
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Publication number: 20230046467Abstract: An intelligent energy module of an electrically assisted bicycle includes a battery management system, a controller and a motor. The battery management system includes a battery and an analog front end. The analog front end is electrically connected to the battery assembly. The controller includes a micro controller unit and a driver. The micro controller unit is electrically connected to the analog front end. The driver electrically connected to the micro controller unit. The motor is electrically connected to the driver and controlled by the driver. The battery assembly, the analog front end, the micro controller unit and the driver are disposed on a same circuit board.Type: ApplicationFiled: October 7, 2021Publication date: February 16, 2023Inventor: Po-Han CHEN
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Patent number: 11581349Abstract: Photosensors may be formed on a front side of a semiconductor substrate. An optical refraction layer having a first refractive index may be formed on a backside of the semiconductor substrate. A grid structure including openings is formed over the optical refraction layer. A masking material layer is formed over the grid structure and the optical refraction layer. The masking material layer may be anisotropically etched using an anisotropic etch process that collaterally etches a material of the optical refraction layer and forms non-planar distal surface portions including random protrusions on physically exposed portions of the optical refraction layer. An optically transparent layer having a second refractive index that is different from the first refractive index may be formed on the non-planar distal surface portions of the optical refraction layer. A refractive interface refracts incident light in random directions, and improves quantum efficiency of the photosensors.Type: GrantFiled: December 16, 2019Date of Patent: February 14, 2023Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Po-Han Chen, Kuo-Cheng Lee, Fu-Cheng Chang
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Publication number: 20220403328Abstract: A composite material film for expanding circulating tumor cells ex vivo and a preparation method thereof, a kit and a method for expanding circulating tumor cells ex vivo, a method for detecting an effect of a drug, and a cryopreservation solution are provided. The preparation method includes: mixing one or more kinds of particles and a solvent to form a mixed liquid, in which the particles are selected from the group consisting of metal particles, metal oxide particles, silicon oxide particles and combinations thereof; placing the mixed liquid on a substrate to form a particle layer; adding a medium material to the particle layer, in which the medium material is selected from the group consisting of styrene and its derivatives, polyester monomers, silicon oxide compounds and combinations thereof; and polymerizing the medium material to form a medium layer to fix the particle layer on the substrate.Type: ApplicationFiled: November 5, 2020Publication date: December 22, 2022Inventors: Po-Han Chen, Wei-Hsin Hsu, Shih-Pei Wu