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公开(公告)号：US11490859B2
公开(公告)日：2022-11-08
申请号：US16486245
申请日：2018-02-05
Inventor： Seok-woo Jeon , Tae-Hoon Kim , Dong-hwi Cho , Junyong Park
Abstract: In a method of manufacturing a biomimetic highly stretchable conductive dry adhesive patch, a mold including a plurality of holes is provided by etching a semiconductor substrate including an insulation layer based on a footing effect. A conductive polymer composite is provided by dispersing mixed conductive fillers in a liquid elastomer. The mixed conductive fillers are formed by mixing one-dimensional conductive fillers and two-dimensional conductive fillers. The conductive polymer composite is applied on the mold such that the conductive polymer composite is injected into the plurality of holes. A conductive dry adhesive structure including a plurality of micropillars corresponding to the plurality of holes is obtained by performing a post-treatment on the conductive polymer composite applied on the mold and by removing the mold. Each of the plurality of micropillars includes a body portion and a tip portion. The tip portion has a spatula shape, is formed on the body portion, and has an area larger than that of the body portion in a plan view.
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Patent Agency Ranking
公开(公告)号：US11040873B2
公开(公告)日：2021-06-22
申请号：US16330936
申请日：2016-12-12
Inventor： Seok-woo Jeon , Dong-hwi Cho
Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.
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公开(公告)号：US20190202689A1
公开(公告)日：2019-07-04
申请号：US16330936
申请日：2016-12-12
Inventor： Seok-woo Jeon , Dong-hwi Cho
CPC classification number: B82B3/0023 , B82B3/00 , B82Y15/00 , B82Y30/00 , B82Y40/00 , H01B1/22 , H01B1/24
Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.
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公开(公告)号：US11708266B2
公开(公告)日：2023-07-25
申请号：US17322170
申请日：2021-05-17
Inventor： Seok-Woo Jeon , Dong-hwi Cho
CPC classification number: B82B3/0023 , B82B3/00 , H01B1/22 , H01B1/24 , B82Y15/00 , B82Y30/00 , B82Y40/00
Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.
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公开(公告)号：US20220009772A1
公开(公告)日：2022-01-13
申请号：US17322170
申请日：2021-05-17
Inventor： Seok-Woo Jeon , Dong-hwi Cho
Abstract: In a method of manufacturing a highly stretchable three-dimensional (3D) percolated conductive nano-network structure, a 3D nano-structured porous elastomer including patterns distributed in a periodic network is formed. A surface of the 3D nano-structured porous elastomer is changed to a hydrophilic state. A polymeric material is conformally adhered on the surface of the 3D nano-structured porous elastomer. The surface of the 3D nano-structured porous elastomer is wet by infiltrating a conductive solution in which a conductive material is dispersed. A 3D percolated conductive nano-network coupled with the 3D nano-structured porous elastomer is formed by evaporating a solvent of the conductive solution and removing the polymeric material.
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公开(公告)号：US20200337640A1
公开(公告)日：2020-10-29
申请号：US16486245
申请日：2018-02-05
Inventor： Seok-woo Jeon , Tae-Hoon Kim , Dong-hwi Cho , Junyong Park
IPC: A61B5/00 , H01L21/768 , H01L21/56
Abstract: In a method of manufacturing a biomimetic highly stretchable conductive dry adhesive patch, a mold including a plurality of holes is provided by etching a semiconductor substrate including an insulation layer based on a footing effect. A conductive polymer composite is provided by dispersing mixed conductive fillers in a liquid elastomer. The mixed conductive fillers are formed by mixing one-dimensional conductive fillers and two-dimensional conductive fillers. The conductive polymer composite is applied on the mold such that the conductive polymer composite is injected into the plurality of holes. A conductive dry adhesive structure including a plurality of micropillars corresponding to the plurality of holes is obtained by performing a post-treatment on the conductive polymer composite applied on the mold and by removing the mold. Each of the plurality of micropillars includes a body portion and a tip portion. The tip portion has a spatula shape, is formed on the body portion, and has an area larger than that of the body portion in a plan view.
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