Manipulating micron scale items

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7338636
APP PUB NO 20040259377A1
SERIAL NO

10770347

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Abstract

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Micron scale dielectric items are manipulated by methods and apparatus taking advantage of spatially non-uniform field. Such fields give rise to a force on dielectric items, directing them generally toward regions of more concentrated field. The electrode may be elongated, either unitary, with a generally planar counter electrode, or dual, such as parallel pins, loops or plates. If dual, particles are generally attracted to regions of high field concentration, including tips, edges and spaces between electrode conductors. Items can be granular, threadlike, or sheets, and microelectronic parts and other shapes. Items can also be collected directly into a recess of a pharmaceutical material delivery microchip, with a conductive membrane of the microchip acting as a manipulating electrode. Items are attracted without regard to their surface charge, or the polarity of the field, which can be AC or DC. Charging, or knowing the charge of items to be manipulated is not necessary. The amount of material collected can be precisely controlled by varying parameters of collection, such as distance between the electrode and the items, distance between dual conductors, size (diameter, length) of the conductors, any dielectric sheathing thereof, and voltage. Elongated electrodes can be used to manipulate items into and from recesses, such as wells of microtitre trays, microchips, and semiconductor chips.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MASSACHUSETTS INSTITUTE OF TECHNOLOGYCAMBRIDGE, MA3306

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chopinaud, Marjorie E Feytiat, FR 2 9
Cima, Michael J Winchester, MA 125 5575
Tupper, Malinda M Cambridge, MA 6 26

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
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DELSYS PHARMACEUTICAL CORPORATION (2)
5858099 Electrostatic chucks and a particle deposition apparatus therefor 58 1996
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SHARPER IMAGE CORPORATION (1)
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Proudo Co., Ltd. (1)
6482327 Liquid treating process and apparatus, as well as liquid treating system 51 2000
 
SARNOFF CORPORATION (11)
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5788814 Chucks and methods for positioning multiple objects on a substrate 139 1996
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MICRODOSE THERAPEUTX, INC. (2)
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DOW CORNING CORPORATION (1)
6126803 Method for removing particulate from a liquid silicon containing compound 3 1998
 
TESSERA, INC. (2)
6350417 Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices 89 2000
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THREESIXTY BRANDS GROUP LLC (1)
6176977 Electro-kinetic air transporter-conditioner 116 1998
 
CANON KABUSHIKI KAISHA (1)
2002/0008,069 Method and apparatus for purifying polluted soil, and apparatus for emitting chlorine-containing gas and apparatus for decomposing polluted gas using the same 6 2000
 
FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC. (1)
6491797 Methods of oxidizing organic contaminants in aqueous mediums using corona induced reactions 7 1995
* Cited By Examiner

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