A push switch of the present disclosure has: a resin case that has a recess, a through hole, and a groove; a connection terminal; an upper protection sheet; and a lower protection sheet. The through hole penetrates from a bottom part of the recess to a lower surface of the resin case, and the groove is provided on the lower surface of the resin case. The through hole and the groove are connected to each other, and the through hole overlaps with the lower protection sheet in plan view. The groove has a first area and a second area, and of the first area and the second area, only the first area overlaps with the lower protection sheet in plan view.

A electromechanical relay device (100) comprising a source electrode (102), a beam (104) mounted on the source electrode at a first end and electrically coupled to the source electrode; a first drain electrode (112) located adjacent a second end of the beam, wherein a first contact (110) on the beam is arranged to be separated from a second contact (112) on the first drain electrode when the relay device is in a first condition; a first gate electrode (106 arranged to cause the beam to deflect, to electrically couple the first contact and the second contact such that the device is in a second condition; and wherein the first and second contacts are each coated with a layer of nanocrystalline graphite.

A push switch of the present disclosure has: a resin case that has a recess, a through hole, and a groove; a connection terminal; an upper protection sheet; and a lower protection sheet. The through hole penetrates from a bottom part of the recess to a lower surface of the resin case, and the groove is provided on the lower surface of the resin case. The through hole and the groove are connected to each other, and the through hole overlaps with the lower protection sheet in plan view. The groove has a first area and a second area, and of the first area and the second area, only the first area overlaps with the lower protection sheet in plan view.

An electronic device includes a substrate body serving as a base including a first surface and a second surface facing opposite sides to each other, a dome switch located on the first surface, a waterproof sheet located to include a portion configured to cover the dome switch, and an adhesive layer located on at least part of the waterproof sheet. The waterproof sheet is affixed to the base or another component with the adhesive layer so as to leave a watertight space including the dome switch.

An electronic device includes a substrate body serving as a base including a first surface and a second surface facing opposite sides to each other, a dome switch located on the first surface, a waterproof sheet located to include a portion configured to cover the dome switch, and an adhesive layer located on at least part of the waterproof sheet. The waterproof sheet is affixed to the base or another component with the adhesive layer so as to leave a watertight space including the dome switch.

A lamination arrangement for laminating a switch in a vehicle including at least one first layer that with one surface forms a visible side of the lamination arrangement, and at least one second layer. The at least one second layer is disposed opposite the visible side and at least partially under the first layer. The first and second layers are elastically deformable such that the actuation of at least one switch is made possible by exertion of force on the visible side. The at least one switch is disposed under the second layer.

A haptic switch includes: (a) a force sensor responding a mechanical stimulus by providing a sensing signal; (b) a processing circuit receiving the sensing signal and providing a control signal; and (c) an electromechanical polymer (EMP) actuator receiving the response control signal and providing a haptic response. The force sensor and the EMP actuator may each be provided on a flexible circuit covered by a protective layer overlying the flexible circuit. The haptic switch may include a graphic layer on which is provided a symbol representing a key. In that haptic switch, the symbol, the light source, the EMP actuator and the force sensor are aligned such that the light source illuminates the symbol and such that, when a user pushes on the symbol, the user's push applies a pressure on the force sensor and the EMP actuator's haptic response is provided in the vicinity of the force sensor.

This invention discloses formulations of mutually compatible sets of graphene, graphene-carbon, metal and dielectric inks for the fabrication of high performance membrane touch switches (MTS). The compositions of these inks are optimized to achieve higher degree of compatibility with highly engineered polymeric substrates, thereby offering a holistic solution for fabricating high-performance MTS. These sets of materials can also be used for fabrication of sensors, biosensors and RFIDs on flexible substrates, such as polymers and papers.