Microelectromechanical device having a common ground plane layer and a set of contact teeth and method for making the same
First Claim
1. A method for forming a common ground for an microelectromechanical device comprising acts of:
- patterning a common ground plane layer on a substrate;
forming a dielectric layer on the common ground plane layer;
depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and
depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground for the regions of the conducting layer.
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Accused Products
Abstract
The present invention relates to MEM switches. More specifically, the present invention relates to a system and method for making MEM switches having a common ground plane. One method for making MEM switches includes: patterning a common ground plane layer on a substrate; forming a dielectric layer on the common ground plane layer; depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground for the regions of the conducting layer
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Citations
16 Claims
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1. A method for forming a common ground for an microelectromechanical device comprising acts of:
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patterning a common ground plane layer on a substrate;
forming a dielectric layer on the common ground plane layer;
depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and
depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground for the regions of the conducting layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of forming tooth regions on a metal portion of an microelectromechanical device comprising acts of:
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etching a plurality of tooth regions in to a sacrificial layer proximate a portion of a conducting layer; and
depositing a metal layer over the sacrificial layer such that portions of the metal layer conform with the tooth regions to form teeth;
whereby the conducting layer may be urged into contact with another portion of the microelectromechanical device with the teeth providing a reduced adhesion area. - View Dependent Claims (13, 14)
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15. A common ground for an microelectromechanical device comprising:
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a substrate layer;
a common ground plane layer formed on a portion of the substrate layer;
a dielectric layer formed on the common ground plane layer and the substrate layer, the dielectric layer formed with conductor spaces therein, where at least one of the conductor spaces is in contact with the ground metal layer, the dielectric layer further including a dielectric top surface; and
a conducting layer formed as a set of conductors in the conductor spaces of the dielectric layer, with at least one of the conductors in contact with the common ground plane layer, the conducting layer having a conducting layer top surface, and where the dielectric top surface and the conducting layer top surface are formed in a substantially co-planar fashion to provide a planarized substrate structure.
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16. A set of anti-adhesion tooth regions formed as a portion of an microelectromechanical device, with the set of anti-adhesion comprising a plurality of tooth regions formed and extending from first portion of a microelectromechanical device, with the tooth regions shaped such that when the first portion of the microelectromechanical device is urged into contact with another portion of a microelectromechanical device, the tooth regions provide for reduced adhesion, thereby preventing adhesion of the first portion of the microelectromechanical device with the other portion of a microelectromechanical device.
Specification