US Patent No: 7,532,386

Number of patents in Portfolio can not be more than 2000

Process for modifying offset voltage characteristics of an interferometric modulator

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ALSO PUBLISHED AS: 20080093688
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

An interferometric modulator manufactured according to a particular set of processing parameters may have a non-zero offset voltage. A process has been developed for modifying the processing parameters to shift the non-zero offset voltage closer to zero. For example, the process may involve identifying a set of processing parameters for manufacturing an interferometric modulator that results in a non-zero offset voltage for the interferometric modulator. The set of processing parameters may then be modified to shift the non-zero offset voltage closer to zero. For example, modifying the set of processing parameters may involve modifying one or more deposition parameters used to make the interferometric modulator, applying a current (e.g., a counteracting current) to the interferometric modulator, and/or annealing the interferometric modulator. Interferometric modulators made according to the set of modified processing parameters may have improved performance and/or simpler drive schemes.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
QUALCOMM MEMS TECHNOLOGIES, INC.SAN DIEGO, CA589

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cummings, William J Millbrae, CA 176 2671
Gally, Brian J Los Gatos, CA 111 1532

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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
QUALCOMM MEMS TECHNOLOGIES, INC. (6)
7,719,752 MEMS structures, methods of fabricating MEMS components on separate substrates and assembly of same 2 2007
7,952,787 Method of manufacturing MEMS devices providing air gap control 0 2009
8,270,062 Display device with at least one movable stop element 0 2009
8,077,379 Interferometric optical display system with broadband characteristics 0 2009
8,098,416 Analog interferometric modulator device with electrostatic actuation and release 0 2010
8,164,815 MEMS cavity-coating layers and methods 0 2010

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