Foil-type switching element with multi-layered carrier foil
First Claim
1. Foil-type pressure sensor comprising:
- a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer, said spacer comprising at least one recess defining an active area of the pressure sensor, andat least two electrodes and a layer of pressure sensitive material arranged in the active area of the pressure sensor between said first and second carrier foils in such a way that, in response to a pressure acting on the active area of the pressure sensor, the first and second carrier foils are pressed together against a reaction force of elastic carrier foils and an electrical contact is established between the at least two electrodes via said layer of pressure sensitive material,wherein at least one of said first and second carrier foils comprises a multi-layered configuration with at least two layers of different materials having different elastic properties so that the elastic properties of said at least one carrier foil are a combination of the individual elastic properties of said at least two layers.
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Accused Products
Abstract
A foil-type pressure sensor includes a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer, the spacer comprising at least one recess defining an active area of the pressure sensor. At least two electrodes are arranged in the active area of the pressure sensor between said first and second carrier foils in such a way that, in response to a pressure acting on the active area of the pressure sensor, the first and second carrier foils are pressed together against the reaction force of the elastic carrier foils and an electrical contact is established between the at least two electrodes. According to the invention, at least one of the carrier foils includes a multi-layered configuration with at least two layers of different materials.
27 Citations
15 Claims
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1. Foil-type pressure sensor comprising:
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a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer, said spacer comprising at least one recess defining an active area of the pressure sensor, and at least two electrodes and a layer of pressure sensitive material arranged in the active area of the pressure sensor between said first and second carrier foils in such a way that, in response to a pressure acting on the active area of the pressure sensor, the first and second carrier foils are pressed together against a reaction force of elastic carrier foils and an electrical contact is established between the at least two electrodes via said layer of pressure sensitive material, wherein at least one of said first and second carrier foils comprises a multi-layered configuration with at least two layers of different materials having different elastic properties so that the elastic properties of said at least one carrier foil are a combination of the individual elastic properties of said at least two layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification
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- Resources
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Current AssigneeIEE International Electronics & Engineering SA (Aerospace Hi-Tech Holding Group Company Limited)
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Original AssigneeIEE - International Electronics & Engineering S.A.
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InventorsBieck, Werner, Kirsch, Aloyse, Decoster, Yves, Chabach, Driss
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Primary Examiner(s)NOORI, MAX H
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Application NumberUS10/538,600Publication NumberTime in Patent Office2,010 DaysField of Search73862381-862382, 738/623.91, 738/623.86, 73760-862US Class Current73/862CPC Class CodesH01H 13/702 with contacts carried by or...H01H 2201/036 Variable resistanceH01H 2209/002 MaterialsH01H 2209/014 composed of different layer...H01H 2209/07 metallicH01H 2239/004 High frequency adaptation o...H01H 2239/006 Containing a capacitive swi...H01H 2239/008 Static electricity consider...Y10T 428/12556 Organic component
