Apparatus for depositing a multilayer coating on discrete sheets
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-016/00
C23C-014/00
B05D-007/00
C23C-014/58
C23C-016/54
H01L-021/67
H01L-051/00
H01L-051/56
출원번호
US-0412133
(2003-04-11)
등록번호
US-8808457
(2014-08-19)
발명자
/ 주소
Pagano, John Chris
Nelson, Kenneth Jeffrey
Burrows, Paul E.
Gross, Mark Edward
Zumhoff, Mac R.
Martin, Peter Maclyn
Bonham, Charles C.
Graff, Gordon Lee
Moro, Lorenza
Chu, Xi
출원인 / 주소
Samsung Display Co., Ltd.
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
0인용 특허 :
103
초록▼
A tool for depositing multilayer coatings onto a substrate. The tool includes a housing defining a vacuum chamber connected to a vacuum source, deposition stations each configured to deposit a layer of multilayer coating on the substrate, a curing station, and a contamination reduction device. At le
A tool for depositing multilayer coatings onto a substrate. The tool includes a housing defining a vacuum chamber connected to a vacuum source, deposition stations each configured to deposit a layer of multilayer coating on the substrate, a curing station, and a contamination reduction device. At least one of the deposition stations is configured to deposit an inorganic layer, while at least one other deposition station is configured to deposit an organic layer. In one tool configuration, the substrate may travel back and forth through the tool as many times as needed to achieve the desired number of layers of multilayer coating. In another, the tool may include numerous housings adjacently spaced such that the substrate may make a single unidirectional pass. The contamination reduction device may be configured as one or more migration control chambers about at least one of the deposition stations, and further includes cooling devices, such as chillers, to reduce the presence of vaporous layer precursors. The tool is particularly well-suited to depositing multilayer coatings onto flexible substrates, as well as to encapsulating environmentally-sensitive devices placed on the flexible substrate.
대표청구항▼
1. A tool for in-line depositing a multilayer coating on a discrete substrate, said tool comprising: a proximal end configured to accept said substrate;a distal end opposite said proximal end;an accumulator cooperative with at least one of said proximal end and said distal end such that said accumul
1. A tool for in-line depositing a multilayer coating on a discrete substrate, said tool comprising: a proximal end configured to accept said substrate;a distal end opposite said proximal end;an accumulator cooperative with at least one of said proximal end and said distal end such that said accumulator contains a batch of said substrates at least before, after or between steps of deposition of said multilayer coating;at least one surface treatment chamber comprising a thermal evaporation device configured to deposit a non-oxide material, said thermal evaporation device disposed in said accumulator and configured to enhance the ability of individual layers of said multilayer coating to adhere to said substrate or an adjacent layer; andat least one housing disposed substantially between said proximal and distal ends, said housing defining a common vacuum and a substantially linear deposition path therein, said common vacuum configured to be coupled to a vacuum source and said substantially linear deposition path arranged to facilitate transport of said substrate through said housing, said housing comprising: at least one transport means configured to convey said substrate along said substantially linear deposition path;at least one organic layer deposition station configured to deposit at least one organic layer of said multilayer coating onto said substrate;at least one curing station configured to cure an organic layer deposited by said organic layer deposition station;at least one inorganic layer deposition station configured to deposit at least one inorganic layer of said multilayer coating onto said substrate; andat least one thermal control contamination reduction device to control the migration of material making up said organic layer from said organic layer deposition station in which said material originated. 2. The tool of claim 1, further comprising a mask station disposed in said housing, said mask station configured to place at least one mask on said substrate. 3. The tool of claim 2, wherein said mask station comprises an organic mask placement device and an inorganic mask placement device. 4. The tool of claim 1, wherein both of said proximal end and said distal end define an accumulator. 5. The tool of claim 1, wherein said tool comprises a plurality of organic deposition stations and a plurality of organic curing stations. 6. The tool of claim 1, wherein said tool is configured to process a plurality of substrate batches simultaneously. 7. The tool of claim 6, wherein said accumulators are further configured to reverse said substrate along said substantially linear deposition path such that multiple layers of said multilayer coating may be deposited. 8. The tool of claim 1, wherein at least one of said accumulators further comprises a device configured to reduce the temperature within said accumulator. 9. The tool of claim 1, wherein said accumulator comprises an environmental isolation valve. 10. The tool of claim 1, wherein said surface treatment chamber comprises a plasma energy source. 11. The tool of claim 1, wherein said non-oxide material comprises at least one of lithium fluoride or magnesium fluoride. 12. The tool of claim 1, wherein said inorganic layer deposition station is configured to place an inorganic layer onto said substrate prior to the placement of an organic layer from said organic layer deposition station. 13. The tool of claim 1, wherein said at least one thermal control contamination reduction device is disposed adjacent at least one side of said organic layer deposition station along said substantially linear deposition path. 14. The tool of claim 13, wherein said thermal control contamination reduction device is disposed adjacent upstream and downstream sides of said organic layer deposition station along said substantially linear deposition path. 15. The tool of claim 13, wherein said thermal control contamination reduction device is a chiller. 16. The tool of claim 1, wherein said thermal control contamination reduction device further comprises at least one baffle disposed along said substantially linear deposition path adjacent at least one side of said organic layer deposition station. 17. The tool of claim 1, wherein said transport means comprises a conveyer extending through said housing. 18. The tool of claim 17, wherein said conveyor is configured to move bidirectionally between said proximal and distal ends. 19. The tool of claim 1, further comprising a testing chamber operably coupled to said tool, said testing chamber configured to test permeation resistance. 20. The tool of claim 19, wherein said testing chamber is configured to simulate environmental attack of at least one of oxygen or moisture. 21. The tool of claim 1, further comprising a control system configured to determine process conditions within said housing. 22. The tool of claim 1, wherein said vacuum source is configured to provide a different vacuum level during deposition of said inorganic layer than during deposition of said organic layer. 23. The tool of claim 22, wherein said vacuum level during deposition of said inorganic layer is approximately 3 millitorr. 24. The tool of claim 22, wherein said vacuum level during deposition of said organic layer is approximately 10 millitorr. 25. The tool of claim 1, wherein said inorganic layer deposition station comprises a rotary sputtering source. 26. The tool of claim 25, wherein said rotary sputtering source comprises at least one rotatable cathode. 27. A tool for encapsulating objects between a multilayer coating and a discrete, flexible substrate, said tool comprising: at least one housing substantially defining a common vacuum and a substantially linear in-line deposition path therein, said substantially linear deposition path arranged to facilitate transport of said substrate through said housing, said housing comprising: at least one transport means configured to convey said substrate along said substantially linear deposition path;at least one organic layer deposition station configured to deposit at least one organic layer of said multilayer coating onto said substrate;at least one curing station configured to cure an organic layer deposited by said organic layer deposition station;at least one inorganic layer deposition station configured to deposit at least one inorganic layer of said multilayer coating onto said substrate;a mask station configured to place an organic mask and an inorganic mask on said substrate; andat least one thermal control contamination reduction device to control the migration of material making up said organic layer from said organic layer deposition station in which said material originated;a vacuum pump coupled to said vacuum chamber;a first accumulator positioned upstream of said housing and configured to contain a batch of said substrates at least before, after or between steps of deposition of said multilayer coating, said first accumulator configured to provide at least partial environmental isolation of said substrate from an external ambient environment once said substrate has been placed in said substantially linear deposition path; anda second accumulator positioned downstream of said housing and configured to contain a batch of said substrates at least before, after or between steps of deposition of said multilayer coating, said second accumulator configured to provide at least partial environmental isolation of said substrate from an external ambient environment, and to reverse said substrate along said substantially linear deposition path such that multiple layers of said multilayer coating may be deposited on said substrate; andat least one surface treatment chamber comprising a thermal evaporation device configured to deposit a non-oxide material, said thermal evaporation device disposed in at least one of said accumulators and configured to enhance the ability of individual layers of said multilayer coating to adhere to said substrate or an adjacent layer. 28. The tool of claim 27, further comprising a fixturing device positioned upstream of said first accumulator to accept said substrate therefrom. 29. The tool of claim 28, wherein at least one of said accumulators comprises a thermal control device. 30. The tool of claim 27, wherein said first accumulator comprises a substrate input path and a substrate output path, said substrate output path spaced apart from said substrate input path. 31. An encapsulation tool for in-line depositing a multilayer coating on a discrete substrate to protect an object placed thereon, said encapsulation tool comprising: at least one housing substantially defining a common vacuum and a substantially linear deposition path therein, said substantially linear deposition path arranged to facilitate transport of said substrate through said housing;an accumulator cooperative with said housing such that said accumulator contains a batch of said substrates at least before, after or between steps of deposition of said multilayer coating;at least one surface treatment chamber comprising a thermal evaporation device configured to deposit a non-oxide material, said thermal evaporation device disposed in said accumulator and configured to enhance the ability of individual layers of said multilayer coating to adhere to said substrate or an adjacent layer;means for conveying said substrate along said substantially linear deposition path;means for depositing an organic material over said object while said object is in said at least one housing;means for curing said organic material while said object is in said at least one housing;means for depositing an inorganic material over said object while said object is in said at least one housing;means for providing a vacuum in said at least one housing such that said means for depositing said organic material, said means for depositing said inorganic material and said means for curing said organic material are in vacuum communication with one another; andmeans for thermally controlling the migration of said organic material from said means for depositing said organic material. 32. The encapsulation tool of claim 31, wherein said encapsulation tool is configured such that either said organic or inorganic material can be first applied to be adjacent said substrate. 33. The encapsulation tool of claim 31, wherein said at least one housing is a plurality of housings sequentially coupled such that said common vacuum is common to each of said plurality of housings. 34. The encapsulation tool of claim 31, wherein said accumulator is in selective vacuum communication with said housing. 35. The encapsulation tool of claim 34, wherein said accumulator comprises a device configured to reduce the temperature within said accumulator.
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