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Nozzle geometry for organic vapor jet printing

United States Patent

8,931,431
January 13, 2015
View the Complete Patent at the US Patent & Trademark Office
A first device is provided. The device includes a print head. The print head further includes a first nozzle hermetically sealed to a first source of gas. The first nozzle has an aperture having a smallest dimension of 0.5 to 500 microns in a direction perpendicular to a flow direction of the first nozzle. At a distance from the aperture into the first nozzle that is 5 times the smallest dimension of the aperture of the first nozzle, the smallest dimension perpendicular to the flow direction is at least twice the smallest dimension of the aperture of the first nozzle.
Forrest; Stephen R. (Ann Harbor, MI), McGraw; Gregory (Ann Harbor, MI)
The Regents of The University of Michigan (Ann Arbor, MI)
12/ 729,448
20100247766
March 23, 2010
This invention was made with government support under DE-FC26-04NT42273 awarded by the Department of Energy. The government has certain rights in the invention.