MEMS device built on substrate with ruthenium based contact surface material

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United States of America Patent

PATENT NO 11501928
APP PUB NO 20210304973A1
SERIAL NO

16832408

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Abstract

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A method of fabricating and packaging an ohmic micro-electro-mechanical system (MEMS) switch device may comprise constructing the switch device on an insulating substrate. The switch device may have contacts that consist of a platinum-group metal. The method may further comprise forming an oxidized layer of the platinum-group metal on an outer surface of each of the one or more contacts. The method may further comprise bonding an insulating cap to the insulating substrate, to hermetically seal the switch device. The bonding may occur in an atmosphere that has a proportion of oxygen within a range of 0.5% to 30%, such that, after the switch device has been hermetically sealed within the sealed cavity, an atmosphere within the sealed cavity has a proportion of oxygen within the range of 0.5% to 30%. The platinum-group metal may be ruthenium, and the oxidized layer of the platinum-group metal may be ruthenium dioxide.

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Patent Owner(s)

Patent OwnerAddress
MENLO MICROSYSTEMS INC49 DISCOVERY SUITE 150 IRVINE CA 92618

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keimel, Christopher F Niskayuna, US 7 23
Minnick, Andrew Queensbury, US 5 12
Zhu, Xu Belmont, US 46 993

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