# US 12,216,495 B2 · Customized stretchable wearable device and manufacturing method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,495 B2 - Document ID: US12216495B2 - Status: Granted - Kind: B2 - Application number: 17/287,109 - Filed: 2019-10-23 - Published: 2021-11-18 - Granted: 2025-02-04 - Earliest claimed: 2018-11-05 - Assignees: Seoul National University R&Db Foundation - Applicants: Seoul National University R&DB Foundation - Inventors: Yongtaek Hong; Jaeyoung Yoon - Web page: https://patentgrep.com/patent/US12216495B2 ## CPC - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G06F 3/014: {Hand-worn input/output arrangements, e.g. data gloves} - H05K 1/181: associated with surface mounted components - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract The present invention relates to a customized stretchable wearable device and a manufacturing method therefor, enabling the manufacturing of a customized stretchable wearable device which fits the body characteristics of a wearing subject who is wearing the wearable device, thereby enabling good wear comfort and sense of operation, and also a beautiful exterior. ## Claims ### Claim 1 A customized stretchable wearable device comprising: a stretchable wearable substrate which is worn on an irregularly curved surface; and a plurality of modularized flexible electronic blocks which are attached to the stretchable wearable substrate in a chemical or physical coupling manner, and of which sizes, arrangement shapes, and arrangement positions are adjusted to correspond to a characteristic of the irregularly curved surface on which the stretchable wearable substrate is worn, wherein a size or shape of each of the modularized flexible electronic blocks is adjustable by forming the modularized flexible electronic blocks to have a grid structure in which a plurality of flexible electronic block elements each having a predetermined shape and size are symmetrically disposed and cutting the flexible electronic block elements arranged to have the grid structure into a specific number, wherein each of the modularized flexible electronic blocks is chemically coupled to the stretchable wearable substrate through covalent bonding. ### Claim 2 (depends on 1) The customized stretchable wearable device of claim 1, further comprising a buffer layer chemically or physically coupled between the stretchable wearable substrate and each of the modularized flexible electronic blocks so as to prevent delamination of the modularized flexible electronic blocks coupled to the stretchable wearable substrate. ### Claim 3 (depends on 1) The customized stretchable wearable device of claim 1, wherein the irregularly curved surface is skin of a wearing subject. ### Claim 4 (depends on 3) The customized stretchable wearable device of claim 3, wherein the stretchable wearable substrate includes a transparent stretchable glove which is worn on skin of a wearing subject. ### Claim 5 (depends on 1) The customized stretchable wearable device of claim 1, wherein a material of the stretchable wearable substrate is polydimethylsiloxane (PDMS), and wherein methacrylate is induced on a surface of the PDMS due to a sol-gel reaction. ### Claim 6 (depends on 5) The customized stretchable wearable device of claim 5, wherein an acrylic acid, which is a hydrophilic monomer, is covalently bonded to the methacrylate so that the modularized flexible electronic blocks are chemically coupled to the stretchable wearable substrate. ### Claim 7 A method of manufacturing a customized stretchable wearable device, comprising: a circuit block manufacturing operation of manufacturing a circuit block by chemically surface-treating a substrate film, printing an electrode on the chemically surface-treated film, and coupling an integrated circuit (IC) chip; a sensor block manufacturing operation of manufacturing a sensor block by chemically surface-treating a substrate film, printing an electrode on the chemically surface-treated film, and coupling a sensor; a stretchable electrode block manufacturing operation of manufacturing a stretchable electrode block into which a stretchable electrode is inserted by applying and curing a polymer compound having stretchability onto a substrate coated with a stretchable electrode material; a substrate surface activating operation of activating a surface of a stretchable wearable substrate by performing an oxygen plasma treatment on one surface of the stretchable wearable substrate; a substrate wearing operation of wearing the one surface, on which the surface is activated, of the stretchable wearable substrate on an irregularly curved surface; a circuit block and sensor block attaching operation of arranging at least one circuit block and at least one sensor block each of which a size, an arrangement shape, and an arrangement position are adjusted to correspond to a characteristic of the irregularly curved surface on the other surface of the stretchable wearable substrate and attaching the at least one circuit block and the at least one sensor block to the stretchable wearable substrate in a chemical or physical coupling manner; and a stretchable electrode block attaching operation of attaching the stretchable electrode block of which a size is adjusted to correspond to the characteristic of the irregularly curved surface between the circuit block and the sensor block which are attached to the other surface of the stretchable wearable substrate, wherein the at least one circuit block and the at least one sensor block are chemically coupled to the stretchable wearable substrate through covalent bonding. ### Claim 8 (depends on 7) The method of claim 7, wherein, in the circuit block manufacturing operation, the sensor block manufacturing operation, or the stretchable electrode block manufacturing operation, a buffer layer for preventing delamination of the circuit block, the sensor block, or the stretchable electrode block attached to the stretchable wearable substrate is formed on an attachment surface of the substrate of the circuit block, the sensor block, or the stretchable electrode block.