Push switch and electronic device including push switch
AssigneesCitizen Electronics Co., Ltd., Citizen Watch Co., Ltd.
InventorsToyohiko Amano, Satoshi Okuma, Ryo Wakuda, Ryo Itakura, Mitsunori Miura
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Abstract
In a first aspect of the present disclosure, a push switch includes a substrate including a first electrode and a second electrode arranged on an upper surface of the substrate, the second electrode arranged around the first electrode; and a resilient member that is arranged on the second electrode over the first electrode. The substrate includes a recess in a lower surface of the substrate, and the recess is positioned below the first electrode that is arranged on the upper surface of the substrate.
Claims20
A push switch comprising:
- a substrate comprising:
- a first electrode and a second electrode arranged on an upper surface of the substrate, the first electrode being arranged at a center of the upper surface of the substrate, and the second electrode being arranged around the first electrode, and
- a recess in a center of a lower surface of the substrate, the recess being positioned under the first electrode so as to overlap the first electrode in a plan view, and the recess not passing through the substrate;
- a resilient member being arranged on the second electrode and over the first electrode, the resilient member including a dome shape that bulges at a center of the resilient member;
- and
- a sheet arranged over the resilient member and including a projection arranged on a surface of the sheet,
- wherein the recess has a center point that is aligned with a center point of the dome shape of the resilient member and a center point of the projection in the plan view.
A push switch comprising:
- a substrate comprising:
- a first electrode and a second electrode arranged on an upper surface of the substrate, the first electrode being arranged at a center of the upper surface of the substrate, and the second electrode being arranged around the first electrode, and
- a recess in a center of a lower surface of the substrate, the recess being positioned directly under the first electrode, and the recess not passing through the substrate;
- a resilient member being arranged on the second electrode and over the first electrode, the resilient member including a dome shape that bulges at a center of the resilient member;
- and
- a sheet arranged over the resilient member and including a projection arranged on a surface of the sheet,
- wherein the recess has a center point that is aligned with a center point of the dome shape of the resilient member and a center point of the projection in a plan view.
Dependencies are inferred from the claim text.