Patent ID: 7887301

Claim:
An electro-hydrodynamic micro-pump comprising: a substrate, a surface of the substrate being substantially uni-planar; at least three groups of electrodes arranged on the surface of the substrate in a direction, each of the at least three groups of electrodes comprising a plurality of electrodes, wherein the plurality of electrodes of each of the at least three groups of electrodes are disposed in a same order in each of the at least three groups of electrodes; an insulation layer attached on the surface of the substrate, the insulation layer covering the electrodes and having a first surface adjacent to the substrate and a second surface opposite to the first surface, the first surface and the second surface being substantially uni-planar; a carbon nanotube layer attached on the second surface of the insulation layer, wherein an entire portion of the carbon nanotube layer is attached on the second surface of the insulation layer; a cover, which covers the carbon nanotube layer and the at least three groups of the electrodes, the cover having a fluid inlet and a fluid outlet, the cover forming a channel between an inner surface of the cover and the carbon nanotube layer; an upper electrode disposed on the inner surface of the cover, the upper electrode facing the at least three groups of electrodes; and a power supplier, which separately supplies voltages to each of the at least three groups of electrodes.