Provided is an electric connector, which is to be arranged between a connection terminal of a first device and a connection terminal of a second device, and is configured to electrically connect the connection terminal of the first device and the connection terminal of the second device to each other, the electric connector including a composite, the composite including: an elastic body having a plurality of through holes that penetrate therethrough in a thickness direction; and a conductive member, which is joined to an inner wall of each of the through holes, and is configured to electrically connect the connection terminal of the first device and the connection terminal of the second device to each other, wherein at least a part of a vicinity of at least one of distal ends of the conductive member is hollow.

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.

A moldable interconnect device for providing an electrical connection between two or more opposing arrays of contacts for establishing an electrical circuit. The moldable interconnect device having an insulting substrate and an array of conductive elements held in the insulating substrate, the conductive elements are made of an elastomeric conductive composite. The composite having a polymeric matrix comprising a crosslinked polymer. The polymer having a curing agent for catalyzing crosslinking of the polymer matrix and conductive metal particles and non-conductive compressible rubber particles dispersed with the polymer matrix. The non-conductive compressible rubber particles having a greater compressibility than the elastomeric conductive composite that is the same as the elastomeric conductive composite but free of non-conductive compressible rubber particles.

A conductive bump electrode structure includes a substrate, an elastic circuit layer, at least two conductive bumps, and an insulating layer. The elastic circuit layer is mounted on the substrate, and includes at least one elastic circuit. The at least two conductive bumps are mounted on the elastic circuit layer, and are electrically connected to each other through the at least one elastic circuit. The insulating layer is mounted on the elastic circuit layer, and includes at least two holes. Since there is a gap between the conductive bumps, the conductive bump electrode structure is easy to be bent and fit body curves of various parts of a user. The elastic circuit can stretch or compress along with the user's movement due to its elasticity, thereby increasing suitability of the conductive bump electrode structure to the human body.

Disclosed are compositions, devices, systems and fabrication methods for stretchable composite materials and stretchable electronics devices. In some aspects, an elastic composite material for a stretchable electronics device includes a first material having a particular electrical, mechanical or optical property; and a multi-block copolymer configured to form a hyperelastic binder that creates contact between the first material and the multi-block copolymer, in which the elastic composite material is structured to stretch at least 500% in at least one direction of the material and to exhibit the particular electrical, mechanical or optical property imparted from the first material. In some aspects, the stretchable electronics device includes a stretchable battery, biofuel cell, sensor, supercapacitor or other device able to be mounted to skin, clothing or other surface of a user or object.

A printed circuit board (PCB) assembly includes a first PCB and a second PCB disposed substantially parallel and opposite to each other, such that a second side of the first PCB is opposite to a first side of the second PCB; wherein the second PCB has a first set of side connectors on its first side and a second set of side connectors on its second side, configured for both electrical power supply to and signal communication with the second PCB; the second PCB both electrically and mechanically connected to the second side of the first PCB via a first elastomeric connector; and the second PCB electrically connected to the first PCB via its second set of side connectors and a flexible electrical connector that is electrically connected to the second set of side connectors and the first PCB.

A flexible circuit may be provided that allows for the monitoring of a physical object. The flexible circuit includes a plurality of flexible conductive segments that are disposed in a geometric pattern. The flexible conductive segments include nodes, and the physical object is monitored by analyzing changes in electrical resistance in the conductive segments between the nodes. The flexible circuit may also include sensors disposed on the nodes for monitoring additional conditions. A processor monitors the flexible conductive segments and sensors. and may provide an output regarding the status of the physical object.

A stretchable electronic device includes a substrate, a plurality of electronic elements, and a conductive wiring. The electronic elements and the conductive wiring are disposed on the substrate, and the conductive wiring is electrically connected to the electronic elements. The conductive wiring is formed by stacking an elastic conductive layer and a non-elastic conductive layer. A fracture strain of the elastic conductive layer is greater than a fracture strain of the non-elastic conductive layer, and the non-elastic conductive layer includes a plurality of first fragments which are separated from one another.

The invention provides an electronic device that includes a first functional body, a second functional body, and at least one connection member connecting the first functional body to the second functional body. The at least one connection member has a spiral pattern, and is suspended in air to allow tor stretching, flexing or compressing.

A physical quantity detector includes a housing, a circuit board, a cover, a resin member, a conductor, and a conductive member. The circuit board includes a board surface. The cover faces the board surface and defines, together with the hosing, a passage through which the target fluid flows. The conductor includes a passage side portion and a connecting portion. The conductive member electrically connects the connecting portion to the circuit board. The conductive member includes a first end in the thickness direction facing a contact target that is either one of the connecting portion or the board surface. The first end includes a contact portion in contact with the contact target and a contactless portion away from the contact target in the thickness direction.