Nozzle geometry for organic vapor jet printing
AssigneeUniversity of Michigan
InventorsStephen R. Forrest, Gregory McGraw
Life of this patent
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Abstract
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.
Claims21
A first device, comprising:
- a print head, further comprising a first nozzle hermetically sealed to a first source of gas;
- wherein 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;
- wherein, 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.
A method, comprising:
- providing a first device, the first device comprising:
- a print head, further comprising a first nozzle hermetically sealed to a first source of gas;
- wherein 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;
- wherein, 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;
- ejecting a jet of gas from the first nozzle.
Dependencies are inferred from the claim text.