Microfabricated electrospray device
First Claim
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1. An electrospray device, comprising:
- a. a substrate, said substrate having an injection surface and an ejection surface;
b. a channel communicating from the injection surface to the ejection surface;
c. an entrance orifice located at the injection surface end of the channel;
d. an ejection orifice located at the ejection surface end of the channel;
e. a recessed region formed in the substrate around the ejection orifice and the ejection end of the channel so as to form a nozzle; and
f. a grid plane region around the recessed region, said grid plan region being physically isolated from the nozzle by the recessed region.
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Abstract
An electrospray device is disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice on an ejection surface, a nozzle defined by a portion recessed from the ejection surface surrounding the exit orifice, and an electrode for application of an electric potential to the substrate to optimize and generate an electrospray; and, optionally, additional electrode(s) to further modify the electrospray.
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Citations
23 Claims
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1. An electrospray device, comprising:
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a. a substrate, said substrate having an injection surface and an ejection surface;
b. a channel communicating from the injection surface to the ejection surface;
c. an entrance orifice located at the injection surface end of the channel;
d. an ejection orifice located at the ejection surface end of the channel;
e. a recessed region formed in the substrate around the ejection orifice and the ejection end of the channel so as to form a nozzle; and
f. a grid plane region around the recessed region, said grid plan region being physically isolated from the nozzle by the recessed region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electrospray device, comprising:
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a. a substrate, said substrate having an injection surface and an ejection surface;
b. a plurality of channels communicating from the injection surface to the ejection surface;
c. an entrance orifice located at the injection surface end of each channel;
d. an ejection orifice located at the ejection surface end of each channel;
e. a recessed region formed in the substrate around the ejection orifice and the ejection end of each channel so as to form a nozzle; and
f. a grid plane region associated with each recessed region, said grid plan region being physically and electrically isolated from each nozzle by the respective recessed region. - View Dependent Claims (20, 21, 22, 23)
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Specification