Source: http://www.google.com/patents/US20100055810?ie=ISO-8859-1
Timestamp: 2014-09-17 00:03:59
Document Index: 510575950

Matched Legal Cases: ['art. 2', 'Application No. 10', 'art 17', 'art 12', 'art 17', 'art 12', 'art 17', 'art 12', 'art 17', 'art 12', 'art 17', 'art 12', 'arts 17', 'art 12', 'arts 17']

Patent US20100055810 - Mask for thin film deposition and method of manufacturing oled using the same - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA mask for thin film deposition used in forming an organic thin film or a conductive layer in an organic light emitting device is disclosed. In one embodiment, the mask includes i) a base member, ii) a plurality of slits configured to penetrate through the base member, wherein the plurality of slits...http://www.google.com/patents/US20100055810?utm_source=gb-gplus-sharePatent US20100055810 - Mask for thin film deposition and method of manufacturing oled using the sameAdvanced Patent SearchPublication numberUS20100055810 A1Publication typeApplicationApplication numberUS 12/359,112Publication dateMar 4, 2010Filing dateJan 23, 2009Priority dateSep 1, 2008Also published asCN101667529A, CN101667529B, EP2159299A2, EP2159299A3, EP2159299B1Publication number12359112, 359112, US 2010/0055810 A1, US 2010/055810 A1, US 20100055810 A1, US 20100055810A1, US 2010055810 A1, US 2010055810A1, US-A1-20100055810, US-A1-2010055810, US2010/0055810A1, US2010/055810A1, US20100055810 A1, US20100055810A1, US2010055810 A1, US2010055810A1InventorsDong-Young Sung, Hong-Ryul KimOriginal AssigneeSamsung Mobile Display Co.,Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (1), Referenced by (12), Classifications (11), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetMask for thin film deposition and method of manufacturing oled using the sameUS 20100055810 A1Abstract A mask for thin film deposition used in forming an organic thin film or a conductive layer in an organic light emitting device is disclosed. In one embodiment, the mask includes i) a base member, ii) a plurality of slits configured to penetrate through the base member, wherein the plurality of slits have a predetermined length and extend in a first direction, wherein the plurality of slits comprise an outermost slit positioned in an outermost in a second direction having a predetermined angle with respect to the first direction, and wherein the outermost slit comprises two sub-slits separated from each other and iii) a rib supporting part formed between and contacting the two sub-slits, wherein the rib supporting part extends from a rib which is adjacent to the outermost slit.
a base member; and a plurality of slits penetrating through the base member, wherein the plurality of slits have a predetermined length and extend in a first direction, wherein the plurality of slits comprise an outermost slit positioned in an outermost location in a second direction having a predetermined angle with respect to the first direction, and wherein the outermost slit comprises two sub-slits separated from each other by a rib supporting part. 2. The mask for thin film deposition as claimed in claim 1, wherein the rib supporting part is integrally formed with the base member.
a frame comprising a pair of first sides and second sides opposed to each other, wherein an opening is defined in the frame by the inner perimeter of the first and second sides, wherein at least one of the first sides and second sides is connected to an edge of the base member. 7. The mask for thin film deposition as claimed in claim 1, further comprising:
a mask strip comprising the base member, the plurality of slits, and the rib supporting part; a second mask strip comprising a second base member and a plurality of silts defined in the second base member, wherein the second mask strip does not include a rib supporting part; and a frame comprising a pair of first sides and second sides opposed to each other, wherein an opening is defined in the frame by the inner perimeter of the first and second sides, wherein both longitudinal ends of the first mask strip and both longitudinal ends of the second mask strip are bonded to the first sides, and wherein an outermost slit of the first mask strip is arranged most adjacent to the second sides. 8. The mask for thin film deposition as claimed in claim 1, wherein the rib supporting part extends from a rib which is adjacent to the outermost slit.
providing a mask which comprises i) a base member, ii) a plurality of slits defined in and passing through the base member, wherein the plurality of slits comprise an outermost slit separated into two sub-slits and iii) a rib supporting part formed between the two sub-slits, and wherein the rib supporting part extends from a rib which is adjacent to the outermost slit; and depositing an organic light emitting film, through the slits of the mask, between first and second electrodes of the organic light emitting device, wherein the first and second electrodes are formed over a substrate. 10. The method of manufacturing the organic light emitting device as claimed in claim 9, further comprising:
applying, with the use of a magnet array, magnetic force to the mask so that the mask is closely adhered to the substrate, wherein the substrate is disposed between the mask and the magnet array, wherein the magnet array comprises a plurality of magnets in a stripe shape, and wherein an extended direction of the magnets have a predetermined angle with the length direction of the plurality of slits of the mask. 11. The method of manufacturing the organic light emitting device as claimed in claim 9, wherein the width of the rib supporting part is about 10 μm to about 100 μm.
a base member; a plurality of through-slits defined in the base member, wherein the plurality of through-slits have a predetermined length and extend in a first direction, and wherein the plurality of through-slits comprise an outermost slit separated into two sub-slits; a plurality of ribs each being formed between two adjacent ones of the plurality of through-slits, wherein the plurality of ribs comprise an outermost rib adjacent to the outermost slit; and a rib support extending from the outermost rib and between the two sub-slits. 14. The mask for thin film deposition as claimed in claim 13, wherein the plurality of through-slits are substantially parallel with each other.
a frame comprising a pair of first sides and second sides opposing each other, wherein an opening is defined in the frame by the inner perimeter of the first and second sides, wherein at least one of the first sides and second sides is connected to an edge of the base member. 18. The mask for thin film deposition as claimed in claim 13, further comprising:
a mask strip comprising the base member, the plurality of through-slits, a plurality of ribs and the rib support; and a second mask strip comprising i) a second base member, ii) a plurality of through-silts defined in the second base member and iii) a plurality of ribs. 19. The mask for thin film deposition as claimed in claim 18, further comprising:
a frame comprising a pair of first sides and second sides opposing each other, wherein an opening is defined in the frame by the inner perimeter of the first and second sides, wherein both longitudinal ends of the first mask strip and both longitudinal ends of the second mask strip are bonded to the first sides, and wherein an outermost slit of the first mask strip is arranged adjacent to the second sides. 20. The mask for thin film deposition as claimed in claim 12, wherein the rib support is integrally formed with the base member. Description
CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Korean Patent Application No. 10-2008-0085738, filed on Sep. 1, 2008, in the Korean Intellectual Property Office, the entire content of which is incorporated herein by reference.
SUMMARY OF CERTAIN INVENTIVE ASPECTS One aspect of the present invention is a mask for a thin film deposition capable of preventing masking defects in process for depositing a thin film by preventing a modification of a rib adjacent to an outermost slit in a fine metal mask having slits in a stripe shape.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial perspective view illustrating a mask for a thin film deposition according to one embodiment of the present invention.
DETAILED DESCRIPTION OF CERTAIN INVENTIVE EMBODIMENTS A fine metal mask (FMM) is used for depositing an organic material in a fine pattern on a large substrate. A plurality of organic materials in a desired fine pattern may be formed on a predetermined position of the substrate at a time using the FMM. In order to deposit the organic material in a desired pattern, the FMM may include a plurality of parallelpiped slots through which the organic materials pass or include slits in a stripe shape. Here, the plurality of parallelpiped slots or slits in a stripe shape may form a unit masking part, and the FMM may include a plurality of unit masking parts. The deposition technique using such a FMM may be used for forming an electrode and for depositing an organic material for manufacturing a large organic light emitting display apparatus.
In the following detailed description, only certain exemplary embodiments of the present invention have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. In addition, when an element is referred to as being �on� another element, it can be directly on the element or be indirectly on the element with one or more intervening elements interposed therebetween. Also, when an element is referred to as being �connected to� another element, it can be directly connected to the element or be indirectly connected to the element with one or more intervening elements interposed therebetween. Hereinafter, like reference numerals refer to like elements.
Referring to FIGS. 2A and 2B, metal masks 110 a, 110 b include slits 113 a in a stripe shape and a rib 115 a installed between the slits. An outermost slit 114 a positioned in the outermost in the width direction substantially perpendicular to a longitudinal direction of the slits 113 a is installed between a rib adjacent to the outermost slit 114 a and a base member 111 a, the rib being a rib 116 a forming one surface of the outermost slit 114 a. The metal masks 110 a and 110 b of the comparative example of certain embodiments of the present invention may be closely adhered on a substrate by a magnet array installed in a deposition apparatus. Here, the magnet array may be disposed such that a magnet in a stripe shape is extended in the width direction substantially perpendicular to the length direction of the slits 113 a (see FIGS. 5, 6A and 6B). At this time, the rib 116 a may be positioned to be adjacent to one end portion of the magnet in a stripe shape. In this case, magnetic force is concentrated on both end portions of the magnet in a stripe shape instead of other portions, so the rib 16 may be bent easily by the strong magnetic force applied to the end portions of the magnet compared to other rib 115 a. In other words, the rib 116 a may be bent such that the width of the outermost slit 114 a becomes narrow as shown in FIG. 2A, or be bent such that the width of the outermost slit 114 a becomes wide as shown in FIG. 2B.
In particular, the mask 10 a includes a rib supporting part 17 a in the unit masking pattern part 12 a positioned in an end portion of a magnet in a stripe shape provided in a magnet array. In consideration of the case when the magnet in a stripe shape is extended in an X axis direction, the rib supporting part 17 a is installed inside an outermost slit 14 a of the unit masking pattern part 12 positioned on both end portions of the magnet in the X axis. In other words, the rib supporting part 17 a is extended crossing each outermost slit 14 a of two groups of unit masking patterns positioned in the both outermost in the X direction of the mask 10 a, and connects a rib adjacent to the outermost slit 14 a, that is, a rib 16 a forming one surface of the outermost slit 14 a, to a base member 11 a positioned on other surface facing the one surface of the outermost slit 14 a. The mask 10 a is fixed to a frame 20 a such that tensile force is applied, in order to prevent the masking defects for a certain device at the time of mass production. In other words, the mask 10 a is fixed to the frame 20 a in a rectangular shape so that the width of the slit 13 a formed in each unit masking pattern part 12 a is maintained within the range of a preset tolerance.
The first mask strip 11 b includes a rib support part 17 b inside an outermost slit 14 b of each unit masking pattern part 12 b positioned farthest from the third mask strip lid in the X axis direction. Similarly, the second mask strip 11 c includes a rib support part 17 c inside an outermost slit 14 c of each unit masking pattern part 12 b positioned farthest from the third mask strip 11 d in the X axis direction. In consideration of the case when a magnet in a stripe shape is extended in an X axis direction, the magnet being provided in a magnet array, the rib supporting parts 17 b and 17 c are installed inside the outermost slit 14 b and 14 c of the unit masking pattern part 12 positioned on both end portions of the magnet in the X axis. In other words, the rib supporting parts 17 b and 17 c extend to cross the respective outermost slits 14 b and 14 c of two groups of unit masking patterns positioned in the both outermost in the X direction of the mask 10 b, and connect ribs adjacent to the outermost slits 14 b and 14 c, that is, ribs 16 b and 16 c forming one surface of the outermost slits 14 b and 14 c, to a base member positioned on other surface facing the one surface of the outermost slits 14 b and 14 c. The respective mask strips 11 b, 11 c, and 11 d are fixed to a frame 20 b such that tensile force is applied in order to prevent the masking defects for a certain device at the time of mass production. In other words, the respective mask strips 11 b, 11 c, and 11 d are fixed to the pair of first sides 21 b facing the frame 20 b in a rectangular shape so that the length or the width of the slits 13 b and 13 c formed in each unit masking pattern part remains within the range of a preset tolerance.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4942333 *Dec 5, 1988Jul 17, 1990North American Philips CorporationShadow mask with border pattern* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8604489 *Jan 10, 2011Dec 10, 2013Samsung Display Co., Ltd.Mask frame assembly for thin layer deposition and method of manufacturing organic light emitting display device by using the mask frame assemblyUS8656859 *Mar 2, 2011Feb 25, 2014Samsung Display Co., Ltd.Mask and mask assembly having the sameUS8696815Sep 1, 2010Apr 15, 2014Samsung Display Co., Ltd.Thin film deposition apparatusUS8729570Mar 22, 2011May 20, 2014Samsung Display Co., Ltd.Mask frame assembly for thin film deposition, organic light-emitting display device using the same, and method of manufacturing the organic light-emitting display deviceUS8746169 *Jan 7, 2011Jun 10, 2014Samsung Display Co., Ltd.Mask frame assembly for thin film depositionUS20110168087 *Jan 7, 2011Jul 14, 2011Lee Choong-HoMask frame assembly for thin film depositionUS20110171768 *Jan 10, 2011Jul 14, 2011Samsung Mobile Display Co., Ltd.Mask frame assembly for thin layer deposition and method of manufacturing organic light emitting display device by using the mask frame assemblyUS20110229633 *Mar 2, 2011Sep 22, 2011Samsung Mobile Display Co., LtdMask and mask assembly having the sameUS20120266813 *Sep 22, 2011Oct 25, 2012Samsung Mobile Display Co., Ltd.Mask Frame Assembly for Thin Film DepositionUS20120298970 *May 1, 2012Nov 29, 2012Myung-Ki LeePatterning Slit Sheet Assembly, Organic Layer Deposition Apparatus, Method of Manufacturing Organic Light-Emitting Display Apparatus, and the Organic Light-Emitting Display ApparatusUS20120299016 *May 10, 2012Nov 29, 2012Myong-Hwan ChoiOrganic layer deposition apparatus and method of manufacturing organic light emitting display device using the organic layer deposition apparatusUS20130199445 *Oct 12, 2011Aug 8, 2013Sharp Kabushiki KaishaVapor deposition device, vapor deposition method, and method for producing organic electroluminescence display device* Cited by examinerClassifications U.S. Classification438/22, 118/504International ClassificationH01L51/50, C23C14/04, H05B33/10, H01L21/02, H01L31/18, B05C11/11Cooperative ClassificationC23C14/042, H01L51/0011European ClassificationC23C14/04BLegal EventsDateCodeEventDescriptionAug 31, 2012ASAssignmentOwner name: SAMSUNG DISPLAY CO., LTD., KOREA, REPUBLIC OFEffective date: 20120702Free format text: MERGER;ASSIGNOR:SAMSUNG MOBILE DISPLAY CO., LTD.;REEL/FRAME:028921/0334Jan 30, 2009ASAssignmentOwner name: SAMSUNG MOBILE DISPLAY CO., LTD.,KOREA, REPUBLIC OFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUNG, DONG-YOUNG;KIM, HONG-RYUL;US-ASSIGNMENT DATABASE UPDATED:20100304;REEL/FRAME:22193/389Effective date: 20081211Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUNG, DONG-YOUNG;KIM, HONG-RYUL;REEL/FRAME:022193/0389RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google