Multilayered deformable element with reduced memory properties in a MEMS device
First Claim
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1. A microelectromechanical device, comprising:
- a substrate having an electrode;
a deformable element comprising a conductive core layer and a protective layer formed over said conductive core layer, said deformable element being physically supported over said substrate by a first connector providing electrical connection between said conductive core layer and said electrode; and
a functional member physically supported over said deformable element by a second connector providing electrical connection between said conductive core layer and said functional member;
wherein said protective layer comprises a material for blocking a combination of an undesired chemical component with said conductive core layer, wherein said undesired chemical component is capable of changing a mechanical property of said deformable element if combined with said deformable element.
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Abstract
A deformable element for use in microelectromechanical systems comprises a core layer and a protective layer. The protective layer is capable of deterring combinations of undesired chemical components in operational environments with the core layer of the deformable element.
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Citations
29 Claims
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1. A microelectromechanical device, comprising:
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a substrate having an electrode; a deformable element comprising a conductive core layer and a protective layer formed over said conductive core layer, said deformable element being physically supported over said substrate by a first connector providing electrical connection between said conductive core layer and said electrode; and a functional member physically supported over said deformable element by a second connector providing electrical connection between said conductive core layer and said functional member; wherein said protective layer comprises a material for blocking a combination of an undesired chemical component with said conductive core layer, wherein said undesired chemical component is capable of changing a mechanical property of said deformable element if combined with said deformable element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A microelectromechanical device, comprising:
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a substrate having an electrode; a deformable element comprising a conductive core layer and a protective layer formed over said conductive core layer, said deformable element being physically supported over said substrate by a first connector providing electrical connection between said conductive core layer and said electrode; and a functional member physically supported over said deformable element by a second connector providing electrical connection between said conductive core layer and said functional member; wherein said protective layer comprises a material having a first diffusion coefficient at a first temperature range and a second diffusion coefficient at a second temperature range that is different from the first temperature range. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification