Microelectro mechanical system switch
First Claim
Patent Images
1. A microelectro mechanical system (MEMS) switch comprising:
- a substrate;
a signal line formed on the substrate;
a beam deformed by an electrostatic force to electrically switch with the signal line; and
a spring type contact unit formed on the signal line to electrically contact the beam and elastically deformed by an external force wherein the contact unit is formed of amorphous silicon.
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Abstract
Provided is a microelectro mechanical system (MEMS). The provided MEMS switch includes a substrate; a signal line formed on the substrate; a beam deformed by an electrostatic force to electrically switch with the signal line; and a spring type contact unit formed on the signal line to electrically contact the beam and elastically deformed by an external force. Thus, stability of the contact between the contact unit and the beam is improved. In particular, even when the beam or the contact unit under the beam is unbalanced, the contact unit can elastically contact the beam to obtain a stable electrical switching operation.
32 Citations
18 Claims
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1. A microelectro mechanical system (MEMS) switch comprising:
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a substrate; a signal line formed on the substrate;
a beam deformed by an electrostatic force to electrically switch with the signal line; and a spring type contact unit formed on the signal line to electrically contact the beam and elastically deformed by an external force wherein the contact unit is formed of amorphous silicon.
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2. A microelectro mechanical system (MEMS) switch comprising:
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a substrate; a signal line formed on the substrate; a beam deformed by an electrostatic force to electrically switch with the signal line; and a spring type contact unit formed on the signal line to electrically contact the beam and elastically deformed by an external force wherein the contact unit is formed as a curved flip spring. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A microelectro mechanical system (MEMS) switch comprising:
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a substrate; a signal line formed on the substrate; a beam deformed by an electrostatic force to electrically switch with the signal line; and a spring type contact unit formed on the signal line to electrically contact the beam and elastically deformed by an external force wherein the content unit is a dome-shape contact unit and a through hole is formed at a top portion of a dome-shape contact unit. - View Dependent Claims (9, 10, 11)
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12. An MEMS switch comprising:
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a substrate; first and second signal lines formed on the substrate while the ends of the signal lines are adjacent; a beam deformed by electrostatic force to electrically contact the first and second signal lines; and spring type contact units arranged at both ends of the signal lines to electrically connect to the beam and electrically deformed by an external force. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification