[특허]Nanoscale ink-jet printing

Arizona Board of Regents

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Nanoscale ink-jet printing

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B41J-002/015
미국특허분류(USC)	347/021; 347/020
출원번호	US-0513433 (2003-05-28)
등록번호	US-7306316 (2007-12-11)
국제출원번호	PCT/US03/016405 (2003-05-28)
§371/§102 date	20050519 (20050519)
국제공개번호	WO03/101736 (2003-12-11)
발명자 / 주소	Doak,R. Bruce
출원인 / 주소	Arizona Board of Regents
대리인 / 주소	Christie, Parker & Hale LLP
인용정보	피인용 횟수 : 22 인용 특허 : 0

초록
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A non-direct contact ink-jet style printer is disclosed herein, which uses a superfluid cryogenic fluid such as superfluid helium as the ink medium. Superfluid helium is non-viscous thus enabling the print head of the present invention to print nanoscale characters onto a substrate. In one exemplary embodiment, dopants are injected into the ink droplets to load the droplets with dopants, which then deliver the dopants onto the substrate. Multiple nozzles and different dopants may be used with the embodiments disclosed herein to provide different outputs...

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What is claimed is: 1. A jet apparatus for nanoscale printing onto a substrate comprising a print head and a translational apparatus housed in a housing comprising at least one housing chamber; a reservoir comprising a cryogenic fluid in communication with the print head; and a dopant injector mechanically coupled to a storage containment comprising dopant molecules; and wherein at least one droplet of the cryogenic fluid is discharged from the print head and is expelled across at least a part of the housing chamber to combine with at least one dopant molecule discharged from the dopant injector, and wherein the combined at least one droplet of the cryogenic fluid and the at least one dopant molecule collides with the substrate positioned on the translational apparatus. 2. The jet apparatus of claim 1, further comprising an electrical-mechanical device; wherein the electrical-mechanical device induces an oscillation onto the print head. 3. The jet apparatus of claim 2, wherein the dopant-jet injector is synchronized with the cryogenic fluid by phase locking with the electrical-mechanical device. 4. The jet apparatus of claim 1, further comprising an exhaust line in communication with the housing chamber and a vacuum pump in communication with the exhaust line. 5. The jet apparatus of claim 4, wherein the vacuum pump maintains the housing at a pressure ranging from below 10-11 atm up to about 1 atm as dictated by the dopant molecules and the substrate. 6. The jet apparatus of claim 5, wherein excess cryogenic fluid and biologically active material are educted from the housing by way of the exhaust line and either recycled for reuse or discarded. 7. The jet apparatus of claim 1, further comprising a second dopant injector and a second storage containment comprising dopant molecules of a second type. 8. The jet apparatus of claim 1, further comprising a charging apparatus for charging the cryogenic fluid issuing from the print head and a deflection field for changing direction of the charged cryogenic fluid issuing from the print head. 9. The jet apparatus of claim 1, further comprising a micro-electro-mechanical systems (MEMS) deflector mounted inline with the print head for deflecting the cryogenic fluid issuing from the print head. 10. The jet apparatus of claim 1, further comprising a layer of inert gas formed on at least a portion of the substrate. 11. The jet apparatus of claim 1, wherein the cryogenic fluid forms a carrier droplet and wherein the at least one dopant molecule is absorbed into an interior of the carrier droplet or is adsorbed onto an exterior of the carrier droplet. 12. The jet apparatus of claim 1, further comprising an image collector pointed at the substrate for collecting still or moving images of the substrate. 13. The jet apparatus of claim 1, wherein the cryogenic fluid is superfluid helium. 14. The jet apparatus of claim 13, wherein the superfluid helium is either 3 He or 4 He. 15. The jet apparatus of claim 1, wherein the dopant molecules comprise a biologically active material. 16. The jet apparatus of claim 15, wherein the biologically active material comprises an ester, a carbohydrate, a lipid, a protein, a chromophore, a nucleotide, an RNA, a DNA, a purine, a porphyrin, an amino acid, a peptide, an antibody, a toxin, an antitoxin, a virus, a retrovirus, a vitamin, a vaccine, an enzyme, a chromosome, a gene, a bacterium or a microbe. 17. The jet apparatus of claim 1, wherein the reservoir is part of a cryostat and wherein the cryostat is cooled to below a superfluid transition temperature of 3He or 4He. 18. The jet apparatus of claim 1, further comprising a computer controller and device drivers for controlling the print head and the dopant-jet injector. 19. The jet apparatus of claim 1, wherein the print head comprises a nozzle comprising an orifice having a diameter of between about 1 nm to about 100,000 nm. 20. The jet apparatus of claim 1, further comprising a collimator mounted inline with a path of the cryogenic fluid. 21. The jet apparatus of claim 1, further comprising at least one stepper motor in mechanical communication with the translational apparatus. 22. A printer capable of non-contacting nanoscale printing comprising a print head comprising a nozzle having a nanoscale diameter orifice, a cryostat comprising a chamber comprising superfluid helium in fluid communication with the print head, a housing comprising at least one chamber comprising dopant molecules; and a translational apparatus comprising a substrate; wherein the superfluid helium issuing from the nozzle of the print head breaks up into nanoscale droplets; and wherein one or more nanoscale droplets of superfluid helium each picks up at least one dopant molecule and delivers the at least one dopant molecule into contact with the substrate. 23. The printer of claim 22, further comprising an electrical mechanical device in mechanical communication with the print head for imparting pressure oscillations onto the print head. 24. The printer of claim 22, further comprising a dopant-jet injector, a storage containment coupled to the dopant-jet injector, and dopant molecules contained within the storage containment; and wherein the dopant molecules in the at least one chamber are discharged from the dopant-jet injector. 25. The printer of claim 24, wherein the dopant-jet injector is synchronized with the superfluid helium issuing from the nozzle by phase locking with an electrical-mechanical device mounted to the print head. 26. The printer of claim 22, further comprising an exhaust line in communication with the at least one chamber and a vacuum pump in communication with the exhaust line. 27. The printer of claim 22, further comprising a charging apparatus for electrically charging the droplets issuing from the nozzle of the print head and a deflection field for changing the direction of the charged droplets. 28. The printer of claim 22, further comprising a micro-electro-mechanical systems (MEMS) deflector mounted inline with the print head for deflecting the superfluid helium issuing from the print head. 29. The printer of claim 22, further comprising a layer of inert gas formed on at least a portion of the substrate. 30. The printer of claim 22, wherein the at least one dopant molecule picked up by each of the one or more nanoscale droplets of superfluid helium aggregates at a center of each of the droplet or decorates an exterior surface of each of the droplets. 31. The printer of claim 22, further comprising a computer controller and device drivers for controlling the print head and the translational apparatus. 32. The printer of claim 22, wherein the nozzle comprises a diameter of between about 1 nm to about 100,000 nm. 33. The printer of claim 22, further comprising a second chamber and a third chamber, wherein the at least one chamber defines a source chamber, the second chamber defines a pickup chamber, and the third chamber defines a deposition chamber. 34. The printer of claim 22, wherein the superfluid helium is either 3He or 4He. 35. A method for non-contact printing onto a substrate comprising: issuing a stream of superfluid helium from a nozzle along a path and allowing the stream to form into a plurality of nanoscale helium droplets; placing dopants in the path of the plurality of nanoscale helium droplets and allowing at least some of the droplets to pick up some of the dopants placed in the path of the droplets; and depositing the picked up dopants by allowing the at least some of the droplets that picked up the dopants to collide with the substrate. 36. The method of claim 35, further comprising the step of moving the substrate relative to the nozzle. 37. The method of claim 35, further comprising the step of maintaining a vacuum during pickup and depositing steps. 38. The method of claim 35, further comprising the step of moving the nozzle relative to the substrate. 39. A jet apparatus for nanoscale printing onto a substrate comprising a housing comprising a nozzle having a nanoscale orifice, a chamber under a vacuum, a translational apparatus comprising a substrate, and a cryostat comprising a cryogenic source, wherein at least some of the cryogenic source issues from the nozzle and disperses into nanoscale droplets in the chamber, wherein at least some of the nanoscale droplets each comprises at least one dopant molecule picked up in the cryostat or picked up in the chamber, and wherein the picked up nanoscale droplets impact with the substrate.

이 특허를 인용한 특허 피인용횟수: 22

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Nanoscale ink-jet printing

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Nanoscale ink-jet printing

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이 특허를 인용한 특허 피인용횟수: 22

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