Patents by Inventor Kai-Wei LO
Kai-Wei LO 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: 20250098116Abstract: A thermally conductive board includes a top metal layer, a bottom metal layer, and an electrically insulating but thermally conductive layer (for simplification hereinafter referred to as “thermally conductive layer”) laminated between the top metal layer and the bottom metal layer. The thermally conductive layer includes a polymer matrix and a thermally conductive filler dispersed in the polymer matrix. The polymer matrix includes an epoxy-based composition consisting of epoxy and chlorine-containing impurities. The chlorine content of the thermally conductive layer is lower than 300 ppm.Type: ApplicationFiled: February 15, 2024Publication date: March 20, 2025Inventors: KAI-WEI LO, Cheng Yi Lin, KUAN-YU CHEN
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Publication number: 20250042144Abstract: A thermally conductive board includes a top metal layer, a bottom metal layer, and an electrically insulating but thermally conductive layer (for simplification hereinafter referred to as “thermally conductive layer”) laminated between the top metal layer and the bottom metal layer. The thermally conductive layer satisfies a relation of I˜qa. There is an equivalence relation between I and q; “I” stands for scattering intensity; “q” stands for scattering vector, and “a” stands for the power of q. q ranges from 0.007 ??1 to 0.1 ??1, and a ranges from ?3 to ?4.Type: ApplicationFiled: January 25, 2024Publication date: February 6, 2025Inventors: Kai-Wei LO, Kuan-Yu CHEN, Hsin-Lung CHEN
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Publication number: 20240227358Abstract: A thermally conductive board includes a first metal layer, a second metal layer, and a thermally conductive layer. The material of the first metal layer includes copper, and the first metal layer has a first top surface and a first bottom surface opposite to the first top surface. A first metal coating layer covers the first bottom surface. The material of the second metal layer includes copper, and the second metal layer has a second top surface and a second bottom surface opposite to the second top surface. A second metal coating layer covers the second top surface and faces the first metal coating layer. The thermally conductive layer is an electrically insulator laminated between the first metal coating layer and the second metal coating layer.Type: ApplicationFiled: May 4, 2023Publication date: July 11, 2024Inventors: KAI-WEI LO, WEN-FENG LEE, HSIANG-YUN YANG, KUO-HSUN CHEN
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Patent number: 12023893Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.Type: GrantFiled: October 28, 2021Date of Patent: July 2, 2024Assignee: TCLAD TECHNOLOGY CORPORATIONInventors: Feng-Chun Yu, Kai-Wei Lo, Wen Feng Lee, Ru-Yi Cai
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Publication number: 20240131819Abstract: A thermally conductive board includes a first metal layer, a second metal layer, and a thermally conductive layer. The material of the first metal layer includes copper, and the first metal layer has a first top surface and a first bottom surface opposite to the first top surface. A first metal coating layer covers the first bottom surface. The material of the second metal layer includes copper, and the second metal layer has a second top surface and a second bottom surface opposite to the second top surface. A second metal coating layer covers the second top surface and faces the first metal coating layer. The thermally conductive layer is an electrically insulator laminated between the first metal coating layer and the second metal coating layer.Type: ApplicationFiled: May 3, 2023Publication date: April 25, 2024Inventors: KAI-WEI LO, WEN-FENG LEE, HSIANG-YUN YANG, KUO-HSUN CHEN
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Patent number: 11778739Abstract: A thermally conductive board includes a metal substrate, a metal layer, a thermal conductive insulating polymer layer, and a ceramic material layer. The thermal conductive insulating polymer layer is located between the metal layer and the metal substrate. The ceramic material layer includes an upper ceramic layer or a lower ceramic layer, or includes both the upper ceramic layer and the lower ceramic layer. The upper ceramic layer is disposed between the metal layer and the thermal conductive insulating polymer layer, and the lower ceramic layer is disposed between the thermal conductive insulating polymer layer and the metal substrate.Type: GrantFiled: March 1, 2021Date of Patent: October 3, 2023Assignee: POLYTRONICS TECHNOLOGY CORP.Inventors: Kuo Hsun Chen, Cheng Tsung Yang, Feng-Chun Yu, Kai-Wei Lo
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Publication number: 20230249438Abstract: A metal clad substrate is disclosed. The metal clad substrate includes a metal baseplate, a metal layer, and a thermally conductive bonding layer disposed therebetween. The thermally conductive bonding layer includes a lower adhesive layer, a fiber-containing layer, and an upper adhesive layer. An upper side and a lower side of the upper adhesive layer contacts the metal layer and the fiber-containing layer, respectively. An upper side and a lower side of the lower adhesive layer contacts the fiber-containing layer and the metal baseplate, respectively. Each of the metal layer and the metal baseplate has a thickness of 0.3 mm - 15 mm. The fiber-containing layer includes a polymer as well as a heat conductive filler and a short fiber evenly dispersed in the polymer. The short fiber is in shape of a string and has a length of 5 µm-210 µm.Type: ApplicationFiled: April 27, 2022Publication date: August 10, 2023Inventors: KAI-WEI LO, KUO-HSUN CHEN, HSIANG-YUN YANG, CHAO-JEN WANG
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Patent number: 11511521Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.Type: GrantFiled: May 3, 2021Date of Patent: November 29, 2022Assignee: POLYTRONICS TECHNOLOGY CORP.Inventors: Feng-Chun Yu, Kai-Wei Lo, Wen Feng Lee, Ru-Yi Cai
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Publication number: 20220266572Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.Type: ApplicationFiled: October 28, 2021Publication date: August 25, 2022Inventors: Feng-Chun YU, Kai-Wei LO, Wen Feng LEE, Ru-Yi CAI
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Publication number: 20220270950Abstract: An insulated metal substrate (IMS) and a method for manufacturing the same are disclosed. The IMS includes an electrically conductive line pattern layer, an encapsulation layer, a first adhesive layer, a second adhesive layer, and a heat sink element. The encapsulation layer fills a gap between a plurality of electrically conductive lines of the electrically conductive line pattern layer. An upper surface of the encapsulation layer is flush with an upper surface of the electrically conductive line pattern layer. The first and second adhesive layer are disposed between the electrically conductive line pattern layer and the heat sink element. A bonding strength between the first adhesive layer and the second adhesive layer is greater than 80 kg/cm2.Type: ApplicationFiled: May 3, 2021Publication date: August 25, 2022Inventors: Feng-Chun YU, Kai-Wei LO, Wen Feng LEE, Ru-Yi CAI
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Publication number: 20220201856Abstract: A thermally conductive board includes a metal substrate, a metal layer, a thermal conductive insulating polymer layer, and a ceramic material layer. The thermal conductive insulating polymer layer is located between the metal layer and the metal substrate. The ceramic material layer includes an upper ceramic layer or a lower ceramic layer, or includes both the upper ceramic layer and the lower ceramic layer. The upper ceramic layer is disposed between the metal layer and the thermal conductive insulating polymer layer, and the lower ceramic layer is disposed between the thermal conductive insulating polymer layer and the metal substrate.Type: ApplicationFiled: March 1, 2021Publication date: June 23, 2022Inventors: KUO HSUN CHEN, Cheng Tsung Yang, Feng-Chun Yu, KAI-WEI LO
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Patent number: 11044817Abstract: A thermally conductive board comprises a metal substrate, a foil containing copper, a thermally conductive and insulating layer and a barrier layer. The thermally conductive and electrically insulating layer is disposed on the metal substrate. The barrier layer is laminated between the foil containing copper and the thermally conductive and electrically insulating layer. The barrier is in direct contact with the foil containing copper, and the interface between the barrier layer and the foil containing copper comprises a microrough surface. The barrier layer has a Redox potential between 0 and ?1V. The microrough surface has a roughness Rz of 2-18 ?m.Type: GrantFiled: April 9, 2020Date of Patent: June 22, 2021Assignee: POLYTRONICS TECHNOLOGY CORP.Inventors: Kuo-Hsun Chen, Chia-Hsiung Wu, Kai-Wei Lo, Yu-Hsuan Tseng
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Publication number: 20210059056Abstract: A thermally conductive board comprises a metal substrate, a foil containing copper, a thermally conductive and insulating layer and a barrier layer. The thermally conductive and electrically insulating layer is disposed on the metal substrate. The barrier layer is laminated between the foil containing copper and the thermally conductive and electrically insulating layer. The barrier is in direct contact with the foil containing copper, and the interface between the barrier layer and the foil containing copper comprises a microrough surface. The barrier layer has a Redox potential between 0 and ?1V. The microrough surface has a roughness Rz of 2-18 ?m.Type: ApplicationFiled: April 9, 2020Publication date: February 25, 2021Inventors: Kuo-Hsun CHEN, Chia-Hsiung Wu, Kai-Wei LO, Yu-Hsuan Tseng