Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Charge transfer device
Patent
1994-12-09
1995-12-26
Ngo, Ngan V.
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Charge transfer device
257216, 257236, 257243, 257244, 257249, 257912, H01L 27148, H01L 29768
Patent
active
054790352
ABSTRACT:
An ionic liquid-channel charge-coupled device that separates ions in a liquid sample according to ion mobility characteristics includes a channel having an inner wall that has a matrix liquid disposed within. An insulating material surrounds the channel, and an introduction element introduces a liquid sample into the channel. The sample is preferably a liquid solution that has at least one ionic specie present in the solution. The device further includes a gating element that establishes at least one charge packet in the channel in response to an externally applied input signal, and a transport element that induces the charge packet to migrate through the channel. The gate element can be a plurality of spaced-apart, electrically conductive, gate structures that are alternately disposable between a high voltage state and a low voltage state. The transport element further includes an application element that applies a variable voltage to the gating element. This application of voltage induces the charge packets to form under the gate structures and, when the voltage applied to an adjacent gate has a higher potential, induces the packet to migrate through the channel in that direction.
REFERENCES:
patent: 4908112 (1990-03-01), Pace
patent: 5092972 (1992-03-01), Ghowsi
patent: 5374834 (1994-12-01), Geis et al.
Lee et al. (1990) "Direct Control of the Electroosmosis in Capillary Zone Electrophoresis by Using an External Electric Field", Anal. Chem., 62:1550-1552.
Manz et al. (1992) "Planar Chips Technology for Miniaturization and Integration of Separation Techniques into Monitoring Systems" (Capillary Electrophoresis on a Chip), J. Chromatog., 593:253-258.
Li (1992) "Capillary Electrophoresis-principles, practice and applications", J. Chromatog., 52:1-30, 55-139, 145-154, 398-540, 541-553.
Gajar Stephanie A.
Geis Michael W.
Geis Nancy
Engellenner Thomas J.
Laurentano Anthony A.
Massachusetts Institute of Technology
Ngo Ngan V.
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