Discrete deposition of particles

Patent metadata

Field	Value
Publication number	US-10814348-B2
Application number	US-201815949040-A
Country	US
Kind code	B2
Filing date	Apr 9, 2018
Priority date	Dec 5, 2013
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A particle can be discretely ejected from a orifice.

First claim

What is claimed is:

1. A method of delivering a particle comprising:
providing a liquid including a particle to an exit orifice;
ejecting only a single particle from a meniscus of the liquid_by applying an electromagnetic signal near the orifice for timed particle ejection based on a sensed condition to deliver the particle from the orifice after applying the electromagnetic signal.

2. The method of claim 1 , wherein the electromagnetic signal is AC or DC.

3. The method of claim 1 , wherein the electromagnetic signal is constant or varying.

4. The method of claim 1 , further comprising applying an electromagnetic signal pulse.

5. The method of claim 1 , wherein a single particle is specifically printed.

6. The method of claim 1 , wherein the particle is a solid.

7. The method of claim 1 , wherein the particle includes polymer.

8. The method of claim 1 , wherein the particle includes metal or semiconductor material.

9. The method of claim 1 , wherein the particle includes ceramic.

10. The method of claim 1 , wherein the particle includes an organic crystal.

11. The method of claim 1 , wherein the particle is conductive.

12. The method of claim 1 , wherein the orifice exposes a liquid meniscus from which a particle is ejected.

13. The method of claim 1 , wherein the particle is at a liquid meniscus at the orifice when the particle is ejected from the orifice.

14. The method of claim 1 , further comprising delivering of a particle to an apex of a liquid meniscus at the orifice prior to ejecting the particle from the orifice.

15. The method of claim 1 , further comprising annealing the particle.

16. A device of delivering a particle comprising:
an orifice;
a liquid reservoir for delivering a particle to the orifice; and
an electromagnetic supply configured to generate an electromagnetic field near the orifice to eject only a single particle from a meniscus of the liquid based on an electrical boundary condition and/or a liquid flow boundary condition by an apex of the meniscus of the liquid at the orifice.

17. The device of claim 16 , wherein the device includes an array of print nozzles.

18. The device of claim 16 , wherein the device prints particles of different sizes.

19. The device of claim 16 , wherein the device prints particles of different materials.

20. The device of claim 16 , wherein the orifice is one of an array of nozzles fluidly connected to the liquid reservoir.

Assignees

• Massachusetts Inst Technology
• Univ Michigan

Inventors

• Hart Anastasios John
• Beroz Justin Douglas
• Maghsoodi Homayoon

Classifications

• B05B5/006 Primary

  the adjustement of high voltage is responsive to a condition, e.g. a condition of material discharged, of ambient medium or of target · CPC title

• B05D2401/32

  applied as powders · CPC title

• B05D1/06

  Applying particulate materials · CPC title

• B05B12/06

  for effecting pulsating flow {(nozzles, spray heads or other outlets with means for generating a discharge of pulsating nature B05B1/08)} · CPC title

• B05D3/14

  by electrical means · CPC title