Bead transporter chucks using repulsive field guidance and method
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United States of America Patent
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Aug 1, 2000
Grant Date -
N/A
app pub date -
Feb 19, 1998
filing date -
Feb 19, 1998
priority date (Note) -
Expired
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Abstract
Bead transporter chucks for selective pick up and discharging of polymer beads for chemical synthesis or analysis, whereby repulsive field conductors are arranged around bead electrodes used for selectively attracting and retaining beads. Problems of bead control are addressed by adding repulsive fields to help guide and direct beads to desired or designated bead collection zones. The repulsive electrodes create non-uniform electric fields that control, focus, and deflect charged beads in the vicinity of the bead collection zone, helping prevent multiple bead retention at intended bead collection zones. For better bead control, and allowing manipulation of beads with higher charge/mass ratios, dielectric material may be positioned around the bead electrode and between the bead electrode and the repulsive field conductor. Multiple bead electrodes may be provided to form two or more bead collection zones, and these may selectively addressed and controlled (e.g, x-y addressing) for individual and selective control of the bead collection zones. Methods and applied voltages are given for using the bead transporter chuck to transport and dispense beads.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SARNOFF CORPORATION | N201 WASHINGTON ROAD CN 5300 PRINCETON NJ 08543 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Sun, Hoi Cheong | Monmouth Junction, NJ | 13 | 179 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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