Fluid-based switch

Details Fluid-based switch Fluid-based switch

2005-03-29

2005-03-29

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Liquid contact

C200S193000

Reexamination Certificate

active

06872904

ABSTRACT:
Fluid-based switches and a method for producing the same are disclosed. In one embodiment, a switch is provided with first and second mated substrates that define therebetween at least portions of a number of cavities. A plurality of wettable pads is exposed within one or more of the cavities. A switching fluid is held within one or more of the cavities, and is wetted to the wettable pads. The switching fluid 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. Forces are applied to the switching fluid by an actuating fluid that is held within one or more of the cavities. At least a portion of the switching fluid is coated with a surface tension modifier.

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