Preventing corrosion degradation in a fluid-based switch
First Claim
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1. A method, comprising:
- depositing a switching fluid with a surface area on a first substrate;
coating the surface area of the switching fluid with a corrosion inhibitor; and
mating the first substrate to a second substrate, the first substrate and the second substrate defining therebetween a cavity holding the switching fluid, the cavity being sized to allow movement of the switching fluid between first and second states.
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Abstract
Fluid-based switch and methods for reducing oxides and corrosion products on switching fluid are disclosed. In one method, oxides are reduced by depositing a switching fluid on a first substrate, coating the switching fluid with a corrosion inhibitor, and mating the first substrate to a second substrate, the first substrate and the second substrate defining therebetween a cavity holding the switching fluid, the cavity being sized to allow movement of the switching fluid between first and second states.
96 Citations
18 Claims
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1. A method, comprising:
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depositing a switching fluid with a surface area on a first substrate;
coating the surface area of the switching fluid with a corrosion inhibitor; and
mating the first substrate to a second substrate, the first substrate and the second substrate defining therebetween a cavity holding the switching fluid, the cavity being sized to allow movement of the switching fluid between first and second states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A switch comprising:
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first and second mated substrates defining therebetween at least portions of a number of cavities;
a plurality of electrodes exposed within one or more of the cavities;
a switching fluid, held within a first one of the cavities, that serves to open and close at least a pair of the plurality of electrodes in response to forces that are applied to the switching fluid;
a corrosion inhibitor coating the switching fluid; and
an actuating fluid, held within one or more of the cavities, that applies the forces to said switching fluid. - View Dependent Claims (12, 13, 14)
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15. A switch comprising:
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first and second mated substrates defining therebetween at least portions of a number of cavities;
a plurality of wettable pads exposed within one or more of the cavities;
a switching fluid, wettable to said pads and held within one or more of the cavities, that serves to open and block light paths through one or more of the cavities in response to forces that are applied to the switching fluid;
a corrosion inhibitor coating the switching fluid; and
an actuating fluid, held within one or more of the cavities, that applies the forces to said switching fluid. - View Dependent Claims (16, 17, 18)
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Specification
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Current AssigneeAgilent Technologies, Inc.
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Original AssigneeAgilent Technologies, Inc.
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InventorsWong, Marvin Glenn, Fong, Arthur
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Primary Examiner(s)Friedhofer, Michael A.
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Application NumberUS10/630,172Time in Patent Office391 DaysField of Search200/182, 200/187-189, 200/209-219, 200/233-236, 310/328, 310/331, 310/348, 310/363, 335/4, 335/47, 335/78, 385/19US Class Current200/182CPC Class CodesH01H 11/02 for mercury switchesH01H 2029/008 using micromechanics, e.g. ...H01H 29/06 Liquid contacts characteris...H01H 29/28 with level of surface of co...
