In-line deposition processes for circuit fabrication
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-016/00
C23C-014/00
출원번호
US-0076005
(2002-02-14)
발명자
/ 주소
Baude, Paul F.
Fleming, Patrick R.
Haase, Michael A.
Kelley, Tommie W.
Muyres, Dawn V.
Theiss, Steven
출원인 / 주소
3M Innovative Properties Company
대리인 / 주소
Fulton Lisa P.
인용정보
피인용 횟수 :
36인용 특허 :
30
초록▼
In one embodiment, the invention is directed to aperture mask deposition techniques using aperture mask patterns formed in one or more elongated webs of flexible film. The techniques involve sequentially depositing material through mask patterns formed in the film to define layers, or portions of la
In one embodiment, the invention is directed to aperture mask deposition techniques using aperture mask patterns formed in one or more elongated webs of flexible film. The techniques involve sequentially depositing material through mask patterns formed in the film to define layers, or portions of layers, of the circuit. A deposition substrate can also be formed from an elongated web, and the deposition substrate web can be fed through a series of deposition stations. Each deposition station may have an elongated web formed with aperture mask patterns. The elongated web of mask patterns feeds in a direction perpendicular to the deposition substrate web. In this manner, the circuit creation process can be performed in-line. Moreover, the process can be automated to reduce human error and increase throughput.
대표청구항▼
1. A repositionable aperture mask comprising:an elongated web of flexible polymeric film; anda deposition mask pattern formed in the film, wherein the deposition mask pattern defines deposition apertures that extend through the film that define at least a portion of an integrated circuit. 2. The ape
1. A repositionable aperture mask comprising:an elongated web of flexible polymeric film; anda deposition mask pattern formed in the film, wherein the deposition mask pattern defines deposition apertures that extend through the film that define at least a portion of an integrated circuit. 2. The aperture mask of claim 1, wherein the web of film is formed with a number of deposition mask patterns. 3. The aperture mask of claim 2, wherein each deposition mask pattern is substantially the same. 4. The aperture mask of claim 2, wherein the web of film is formed with two or more different mask patterns. 5. The aperture mask of claim 1, wherein the web of film is sufficiently flexible such that it can be wound to form a roll. 6. The aperture mask of claim 1, wherein the web of film is stretchable such that it can be stretched in at least a down-web direction. 7. The aperture mask of claim 1, wherein the web of film is stretchable in at least a cross-web direction. 8. The aperture mask of claim 1, wherein the polymeric film includes polyimide. 9. The aperture mask of claim 1, wherein at least one deposition aperture has a width of less than approximately 1000 microns. 10. The aperture mask of claim 9, wherein at least one deposition aperture has a width of less than approximately 50 microns. 11. The aperture mask of claim 10, wherein at least one deposition aperture has a width of loss than approximately 20 microns. 12. The aperture mask of claim 1, wherein the web is at least approximately 100 centimeters in length. 13. The aperture mask of claim 12, wherein the web is at least approximately 10 meters in length. 14. The aperture mask of claim 1, wherein the web is at least approximately 3 cm in width. 15. The aperture mask of claim 1, wherein the web is less than approximately 200 microns in thickness. 16. The aperture mask of claim 1, wherein the web is less than approximately 30 microns in thickness. 17. The aperture mask of claim 1, wherein the flexible film is impregnated with magnetic material. 18. The aperture mask of claim 1, wherein the deposition mask pattern defines one or more circuit elements of a display. 19. The aperture musk of claim 1, wherein the deposition mask pattern defines one or more circuit elements of a radio frequency identification (RFID) circuit. 20. A system comprising:a first web of flexible film;a second web of flexible polymeric film, wherein the second web of film defines a deposition mask pattern that defines at least a portion of an integrated circuit;a drive mechanism that moves at least one of the first and second webs relative to the other of the first and second webs; anda deposition unit that deposit onto the first web of film through the deposition mask pattern defined by the second web of film. 21. The system of claim 20, further comprising an alignment mechanism that aligns the deposition mask pattern of the second web of film with the first web of film prior to deposition. 22. The system of claim 21, wherein tho alignment mechanism is a stretching apparatus that stretches the second web of film to align the deposition mask pattern relative to the first web of film. 23. The system of claim 21, wherein the alignment mechanism is a stretching apparatus that stretches the first web of film to align the deposition mask pattern relative to the first web of film. 24. The system of claim 21, wherein the alignment mechanism is a stretching appuratus that stretches both the first and second webs of film to align the deposition mask pattern relative to the first web of film. 25. The system of claim 20, wherein the first and second webs of film are sufficiently flexible such that they can be wound to form rolls. 26. The system of claim 20, wherein the first webs of film comprises polymeric films. 27. The system of claim 20, wherein the second web of film is formed with a number of deposition mask patterns. 28. The system of claim 27, wherein each deposition mask pattern is substantially the same. 29. The system of claim 27, wherein at least two deposition mask patterns are substantially different. 30. The system of claim 20, wherein each deposition mask pattern defines deposition apertures, wherein at least one deposition aperture has a width less than 1000 microns. 31. The system of claim 30, wherein at least one deposition aperture has a width less than 50 microns. 32. The system of claim 20, wherein the deposition mask pattern defines one or more circuit layers of a radio frequency identification (RFID) circuit. 33. The system of claim 20, further comprising a controller coupled to the drive mechanism to move the first and second webs of film relative to one another. 34. The system of claim 33, wherein the controller causes movement of first and second webs of film independently of one another. 35. A system comprising:a first web of film;a second web of polymeric film, wherein the second web of film is formed with a number of deposition mask patterns;a third web polymeric film, wherein the third web of film is formed with a number of deposition mask patterns;a first deposition chamber, wherein the first and second webs of film feed past one another inside the first deposition chamber such that material can be deposited onto the first web of film through a deposition mask pattern of the second web of film; anda second deposition chamber, wherein the first and third webs of film feed past one another inside the second deposition chamber such that material can be deposited onto the first web of film through a deposition mask pattern of the third web or film. 36. A stretching apparatus for aligning a deposition mask pattern with a substrate, wherein the deposition mask pattern is formed in a first web of polymeric film, the apparatus comprising:a first stretching mechanism to stretch the first web of film to align the deposition mask pattern formed in the first web of film with the substrate. 37. The stretching apparatus of claim 36, further comprising one or more sensors to sense whether the deposition mask pattern is aligned with the substrate. 38. The stretching apparatus of claim 36, further comprising one or more controllers to align the deposition mask pattern with the substrate. 39. The stretching apparatus of claim 36, wherein the substrate forms part of a second web or film, the apparatus further comprising:a second stretching mechanism to stretch the second web of film to align the deposition mask pattern formed in the first web of film relative to the substrate. 40. A system comprising:a first web of film;a second web of polymeric film, wherein the second web of film is formed with a number of deposition mask patterns;a first stretching mechanism to stretch the first web of film in a down-web direction;a second stretching mechanism to stretch the second web of film in a down-web direction, wherein the down-web direction of the second web of film is different from the down-web direction of the first web or film, wherein stretching the first and second webs of film aligns a deposition mask pattern of the second web of film with the first web of film for a deposition process; anda deposition unit to deposit material through the deposition mask patterns onto the first web of film. 41. The system of claim 40, wherein at least one of the stretching mechanisms stretches at least one of the webs in a cross-web direction. 42. A system comprising:a first web of film:a second web of polymeric film, wherein the second web of film is formed with a number of deposition mask patterns;a first stretching mechanism to stretch the first web of film in a cross-web direction;a second stretching mechanism to stretch the second web of film in a cross-web direction, wherein the cross-web direction of the second web of film is different from the cross-web direction of the first web of film, wherein stretching the first and second webs of film aligns a deposition mask pattern of the second web of film with the first web of film for a dep osition process; anda deposition unit to deposit material through the deposition mask patterns onto the first web of film.
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