Method of making a microfluidic device

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United States of America Patent

PATENT NO 8975193
APP PUB NO 20130034467A1
SERIAL NO

13196421

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Abstract

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A microfabricated device is fabricated by depositing a first metal layer on a substrate to provide a first electrode of an electrostatic actuator, depositing a first structural polymer layer over the first metal layer, depositing a second metal layer over said first structural polymer layer to form a second electrode of the electrostatic actuator, depositing an insulating layer over said first structural polymer layer, planarizing the insulating layer, etching the first structural polymer layer through the insulating layer and the second metal layer to undercut the second metal layer, providing additional pre-formed structural polymer layers, at least one of which has been previously patterned, and finally bonding the additional structural layers in the form of a stack over the planarized second insulating layer to one or more microfluidic channels. The technique can also be used to make cross over channels in devices without electrostatic actuators, in which case the metal layers can be omitted.

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Patent Owner(s)

Patent OwnerAddress
TELEDYNE DIGITAL IMAGING INC1049 CAMINO DOS RIOS THOUSAND OAKS CA 91360

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnstone, Robert Montreal, CA 6 153
Martel, Stephane La Prairie, CA 15 408

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