Variable capacitance type input device
First Claim
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1. A capacitance type sensor comprising:
- a substrate;
a group of fixed electrodes provided on an upper face of said substrate;
a movable electrode plate having an electrode on a lower face thereof, said movable electrode plate having a rubber elasticity; and
wherein said substrate is provided with at least a layer of one of conductive elastomer, conductive paint and conductive adhesive material, said layer having a thickness in which said layer supports said movable electrode plate and said thickness of said layer provides a gap between said group of fixed electrodes on said substrate and said electrode on said movable electrode plate.
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Abstract
A capacitance type sensor includes a substrate, a group of electrodes fixed on an upper face of the substrate, a movable electrode plate having an electrode on its lower side and a gap between the group of fixed electrodes on the substrate and the electrode on the movable electrode plate. The gap is formed with a solder layer, a conductive elastomer layer, a conductive paint layer, or a conductive adhesive material layer provided on the substrate. The electrode on the movable electrode plate is made of conductive rubber plate or conductive elastomer plate.
38 Citations
3 Claims
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1. A capacitance type sensor comprising:
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a substrate;
a group of fixed electrodes provided on an upper face of said substrate;
a movable electrode plate having an electrode on a lower face thereof, said movable electrode plate having a rubber elasticity; and
whereinsaid substrate is provided with at least a layer of one of conductive elastomer, conductive paint and conductive adhesive material, said layer having a thickness in which said layer supports said movable electrode plate and said thickness of said layer provides a gap between said group of fixed electrodes on said substrate and said electrode on said movable electrode plate. - View Dependent Claims (2, 3)
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Specification
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Current AssigneeNitta Corporation, Wacoh Company
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Original AssigneeNitta Corporation, Wacoh Company
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InventorsMorimoto, Hideo, Okada, Kazuhiro
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Primary Examiner(s)NGUYEN, CHANH DUY
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Application NumberUS09/778,527Publication NumberTime in Patent Office1,672 DaysField of Search345/163, 345/156, 345/157, 345/161, 345/167, 345/173, 345/174, 341/20, 341/21, 341/22, 341/23, 200/6.A, 200/5.R, 463/37, 463/38, 463/36, 178/18.03, 178/18.06, 178/18.05, 178/18.07US Class Current345/174CPC Class CodesG06F 3/0338 with detection of limited l...
