Invention Grant
- Patent Title: Bio-inspired, highly stretchable and conductive dry adhesive patch, method of manufacturing the same and wearable device including the same
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Application No.: US16486245Application Date: 2018-02-05
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Publication No.: US11490859B2Publication Date: 2022-11-08
- Inventor: Seok-woo Jeon , Tae-Hoon Kim , Dong-hwi Cho , Junyong Park
- Applicant: Korea Advanced Institute of Science and Technology
- Applicant Address: KR Daejeon
- Assignee: Korea Advanced Institute of Science and Technology
- Current Assignee: Korea Advanced Institute of Science and Technology
- Current Assignee Address: KR Daejeon
- Agency: Daly Crowley Mofford & Durkee, LLP
- Priority: KR10-2017-0021111 20170216
- International Application: PCT/KR2018/001510 WO 20180205
- International Announcement: WO2018/151448 WO 20180823
- Main IPC: G08B21/04
- IPC: G08B21/04 ; A61B5/00 ; H01L21/56 ; H01L21/768 ; A61B5/25 ; H01L21/60

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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