# US 2021/0243884 A1 · Elastic mounting board > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243884 A1 - Document ID: US20210243884A1 - Status: Published application - Kind: A1 - Application number: 17/238,812 - Filed: 2021-04-23 - Published: 2021-08-05 - Earliest claimed: 2019-01-30 - Assignees: Murata Manufacturing Co., Ltd. - Applicants: Murata Manufacturing Co., Ltd. - Inventors: Kazuki Iwasaki - Web page: https://patentgrep.com/patent/US20210243884A1 ## CPC - H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)} - H05K 1/0283: {Stretchable printed circuits} - H05K 1/0393: {Flexible materials (H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups)} - H05K 1/181: associated with surface mounted components - H05K 2201/0133: Elastomeric or compliant polymer - H05K 2201/0314: Elastomeric connector or conductor, e.g. rubber with metallic filler - H05K 2201/055: Folded back on itself - H05K 2201/09081: Tongue or tail integrated in planar structure, e.g. obtained by cutting from the planar structure - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An elastic mounting board that includes: a first elastic substrate; an elastic wiring on a first main surface of the first elastic substrate; an electrode electrically connected to the elastic wiring; and a functional component mounted in a mounting portion of the first elastic substrate and electrically connected to the elastic wiring, in which the mounting portion having the functional component is folded back such that the functional component will face a first main surface side of the elastic mounting board and the electrode will face a second main surface side of the elastic mounting board. ## Claims ### Claim 1 An elastic mounting board comprising: a first elastic substrate; an elastic wiring on a first main surface of the first elastic substrate; an electrode electrically connected to the elastic wiring; and a functional component mounted in a mounting portion of the first elastic substrate and electrically connected to the elastic wiring, wherein the mounting portion having the functional component is constructed to be folded back such that the functional component will face a first main surface side of the elastic mounting board and the electrode will face a second main surface side of the elastic mounting board. ### Claim 2 (depends on 1) The elastic mounting board according to claim 1, further comprising: a second elastic substrate arranged such that the elastic wiring is interposed between the second elastic substrate and the first elastic substrate, the second elastic substrate defining a first opening and a second opening, wherein the electrode is arranged in the first opening, and the functional component is arranged in the second opening. ### Claim 3 (depends on 2) The elastic mounting board according to claim 2, wherein in a plan view of the elastic mounting board, the mounting portion is defined by a first contour line and a second contour line that connects opposed ends of the first contour line, and the mounting portion is separated from a peripheral portion of the first elastic substrate along the first contour line, and is constructed to be folded back along the second contour line such that the functional component will face the first main surface side of the elastic mounting board. ### Claim 4 (depends on 3) The elastic mounting board according to claim 3, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode overlap each other in the plan view of the elastic mounting board. ### Claim 5 (depends on 4) The elastic mounting board according to claim 4, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 6 (depends on 3) The elastic mounting board according to claim 3, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode do not overlap each other in the plan view of the elastic mounting board. ### Claim 7 (depends on 6) The elastic mounting board according to claim 6, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 8 (depends on 1) The elastic mounting board according to claim 1, wherein in a plan view of the elastic mounting board, the mounting portion is defined by a first contour line and a second contour line that connects opposed ends of the first contour line, and the mounting portion is separated from a peripheral portion of the first elastic substrate along the first contour line, and is constructed to be folded back along the second contour line such that the functional component will face the first main surface side of the elastic mounting board. ### Claim 9 (depends on 8) The elastic mounting board according to claim 8, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode overlap each other in the plan view of the elastic mounting board. ### Claim 10 (depends on 9) The elastic mounting board according to claim 9, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 11 (depends on 8) The elastic mounting board according to claim 8, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode do not overlap each other in the plan view of the elastic mounting board. ### Claim 12 (depends on 11) The elastic mounting board according to claim 11, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 13 (depends on 1) The elastic mounting board according to claim 1, wherein the functional component is an amplifier. ### Claim 14 (depends on 1) The elastic mounting board according to claim 1, wherein the functional component is a connector. ### Claim 15 (depends on 1) The elastic mounting board according to claim 1, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode overlap each other in a plan view of the elastic mounting board. ### Claim 16 (depends on 15) The elastic mounting board according to claim 15, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 17 (depends on 1) The elastic mounting board according to claim 1, wherein, when the mounting portion having the functional component is folded back such that the functional component faces the first main surface side of the elastic mounting board and the electrode faces the second main surface side of the elastic mounting board, the functional component and the electrode do not overlap each other in a plan view of the elastic mounting board. ### Claim 18 (depends on 17) The elastic mounting board according to claim 17, wherein a portion of the mounting portion that is folded back is bonded to the first elastic substrate at a bonding position where the functional component and the bonding position do not overlap each other in the plan view of the elastic mounting board. ### Claim 19 (depends on 1) The elastic mounting board according to claim 1, wherein the electrode is a gel electrode. ### Claim 20 (depends on 1) The elastic mounting board according to claim 1, further comprising a resin material covering the functional component.