WO2015131485A1 - 真空蒸镀装置和真空蒸镀方法 - Google Patents
真空蒸镀装置和真空蒸镀方法 Download PDFInfo
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- WO2015131485A1 WO2015131485A1 PCT/CN2014/083682 CN2014083682W WO2015131485A1 WO 2015131485 A1 WO2015131485 A1 WO 2015131485A1 CN 2014083682 W CN2014083682 W CN 2014083682W WO 2015131485 A1 WO2015131485 A1 WO 2015131485A1
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- vapor deposition
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- alignment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/50—Substrate holders
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/54—Controlling or regulating the coating process
Definitions
- the evaporation source is generally a one-step vacuum evaporation method, that is, a layer evaporation source, a line evaporation source, or a surface evaporation source, that is, each layer of the film is once vapor-deposited onto the entire substrate.
- FIG. 1 is a schematic cross-sectional structural view of a vacuum evaporation apparatus of the prior art, comprising: a substrate driving mechanism (not shown) for moving and carrying a substrate, a pattern area formed on the surface of the substrate; and a masking plate for moving and carrying the mask 3
- a mask driving mechanism (not shown); a positioning mechanism for aligning the substrate and the mask 3 (not shown); a line evaporation source.
- the substrate to be vapor-deposited faces downward, the mask 3 is located below the substrate, and the line evaporation source is located below the mask 3.
- FIG. 2 is a top plan view of a prior art substrate structure, including: a substrate 1U formed on a pattern area 2 on the surface of the substrate; and a mark 5 on the substrate.
- the alignment mark 5 on the substrate is located outside the pattern area.
- FIG 3 is a top plan view of a prior art mask structure, including: a mask pattern area 6; a mask board border area 7; a second alignment mark 8 on the mask.
- the second alignment mark 8 on the mask is located in the mask frame area 7, and the mask pattern area 6 is the same size as the substrate pattern area.
- the substrate driving mechanism moves the substrate above the mask 3; the second alignment on the mask
- the mark 8 is aligned with the alignment mark 5 on the substrate by the alignment mechanism;
- the line evaporation source is turned on, and the vapor deposition gas is evaporated upward to the surface of the substrate, and deposited as a film conforming to the pattern of the open area of the mask.
- the pattern on the evaporation mask is consistent with the pattern of the evaporated film, and it is required for each layer of vapor deposition film of different patterns.
- the evaporation mask of different graphics is replaced, and the evaporation mask is expensive to manufacture;
- the pattern area of the mask sheet is required to be consistent with the pattern area pattern of the substrate, and the precision of the mask sheet is high, and the mask sheet is difficult to manufacture.
- a vacuum coating device comprising:
- a substrate driving mechanism for carrying and moving the substrate
- a first mask driving mechanism for carrying and moving the first mask, the first mask being located below the substrate;
- a second mask driving mechanism for carrying and moving the second mask, the second mask being located below the first mask
- An evaporation source the evaporation source being located below the second mask.
- first mask driving mechanism and the second mask driving mechanism respectively drive the first mask and the second mask to move to change the first mask And an overlapping state of the mask pattern regions of the second mask, forming an effective mask pattern region corresponding to the pattern of the pattern region to be evaporated on the substrate.
- the surface of the substrate is divided into thousands of vapor deposition sub-regions
- the size of the effective mask pattern area formed by the first mask sheet and the second mask sheet overlapping each other is smaller than the size of the vapor deposition sub-area, or the size of the effective mask pattern area The same size as the vapor deposition sub-region.
- the vacuum coating device further includes:
- a vapor deposition baffle between the substrate and the evaporation source capable of forming an evaporation gas transmission region having the same size as that of the effective mask pattern region
- baffle driving mechanism for moving and carrying the vapor deposition baffle such that the vapor deposition gas permeation zone corresponds to a current vapor deposition subregion of the substrate
- an evaporation source driving mechanism that moves and carries the evaporation source such that the evaporation source corresponds to a current vapor deposition sub-region of the substrate.
- the vacuum evaporation apparatus further includes an alignment mechanism for aligning the first mask and the second mask with the current vapor deposition sub-region of the substrate.
- the vacuum evaporation device further includes:
- Ffi is used to move and carry the alignment drive mechanism of the alignment mechanism.
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is the same as the size of the vapor deposition sub-area
- a first alignment mark is disposed on an outer side of the vapor deposition sub-region, a second alignment mark is disposed on a frame area of the first mask, and a third alignment mark is disposed on a border area of the second mask
- the alignment mechanism aligns the first mask and the current vapor deposition sub-region by the first alignment mark and the second alignment mark;
- the alignment mechanism aligns the second mask and the current vapor deposition sub-region by the first alignment mark and the third alignment mark.
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is smaller than the size of the vapor deposition sub-area
- the width of the first mask and the second mask in the first direction is smaller than the width of the current vapor-deposited sub-region of the substrate, so that the effective mask pattern area is on the first side
- the upward width is less than the width of the current vapor-deposited sub-region of the substrate.
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is smaller than the size of the vapor deposition sub-area
- a first alignment mark is disposed on an outer side of the vapor deposition sub-region, a second alignment mark is disposed on a frame region of the first mask, and a third alignment is disposed in a frame region of the second mask a mark, wherein the alignment mechanism passes the first alignment mark and the second alignment mark to the first mask and The front vapor deposition sub-region performs alignment before the evaporation start, and the alignment mechanism passes the first alignment mark and the third alignment mark on the second mask and the current vapor deposition sub-region Perform the alignment before the evaporation start;
- a fourth alignment mark is further disposed on the outer side of the vapor deposition sub-region
- a fifth alignment mark is further disposed on the frame area of the first mask
- a sixth pair is further disposed on the frame area of the second mask a bit mark
- the alignment mechanism is opposite to the first mask plate and the current vapor deposition sub-region by the fourth alignment mark and the fifth alignment mark in the first direction
- the alignment mechanism passing the fourth alignment mark and the sixth alignment mark on the second mask and the current vapor deposition sub-region in the first side The alignment is performed in a state in which the upward relative position is continuously moved.
- the fourth alignment mark is an elongated structure extending in the first direction and penetrating through the corresponding vapor deposition sub-region.
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is smaller than the size of the vapor deposition sub-area
- the first mask driving mechanism is capable of performing alignment according to a state in which the first mask plate and the current vapor deposition sub-region continuously move in a relative position in the first direction, and the first mask is The film plate is precisely finely adjusted in the second direction such that the position of the first mask plate and the current sub-vapor deposition sub-area does not shift;
- the second mask driving mechanism is capable of performing alignment according to a state in which the second mask plate and the current vapor deposition sub-region continuously move in a relative position in the first direction, and the second mask is The diaphragm is precisely fine-tuned in the second direction such that the second mask does not shift from the position of the current sub-vapor deposition sub-region.
- the vapor deposition baffle is located below the second mask.
- the vapor deposition baffle includes four independently driveable sub-baffles, and the four sub-shiels can enclose the vapor deposition gas permeation zone.
- the evaporation source is a line evaporation source.
- a vacuum evaporation method including:
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is the same as the size of the vapor deposition sub-area
- a first alignment mark is disposed on an outer side of the vapor deposition sub-region, a second alignment mark is disposed on a frame area of the first mask, and a third alignment mark is disposed on a border area of the second mask
- the alignment mechanism aligns the first mask and the current vapor deposition sub-region by the first alignment mark and the second alignment mark;
- the alignment mechanism aligns the second mask and the current vapor deposition sub-region by the first alignment mark and the third alignment mark.
- the size of the effective mask pattern area formed by overlapping the first mask and the second mask is smaller than the size of the vapor deposition sub-area
- a first alignment mark is disposed on an outer side of the vapor deposition sub-region
- a second alignment mark is disposed on a frame region of the first mask
- a third alignment is disposed in a frame region of the second mask a mark
- a fourth alignment mark is further disposed on the outer side of the vapor deposition sub-region
- a fifth alignment mark is further disposed on the frame area of the first mask
- a sixth pair is further disposed on the frame area of the second mask a bit mark
- the alignment mechanism is opposite to the first mask plate and the current vapor deposition sub-region by the fourth alignment mark and the fifth alignment mark in the first direction
- the alignment mechanism passing the fourth alignment mark and the sixth alignment mark on the second mask and the current vapor deposition sub-region in the first side The alignment is performed in a state in which the upward relative position is continuously moved.
- the fourth alignment mark is extended along the first direction and penetrates through the corresponding steaming, and the first mask driving mechanism is configured according to the first mask and the current vapor deposition sheet.
- the second mask driving mechanism performs a alignment result according to a state in which the second mask plate and the current vapor deposition sub-region continuously move in a relative position in the first direction, and the second mask is The plate is precisely fine-tuned in the second direction such that the position of the second mask to the current sub-vapor deposition sub-area does not shift.
- the pattern regions of the mask plates on at least two mask plates can be changed according to the pattern features of the pattern regions to be evaporated on the substrate surface.
- the state is matched with the pattern of the pattern area to be evaporated on the surface of the substrate, thereby realizing the patterning of the vapor-deposited film of each layer, and reducing the manufacturing cost of the mask.
- the vacuum evaporation device further divides the surface of the substrate into a plurality of vapor deposition sub-regions (for example, 1 to 10), using a first mask plate smaller than one vapor deposition sub-region and The second mask plate completes the vapor deposition of each of the vapor deposition sub-regions step by step, and can continuously change the mask pattern regions of the first mask panel and the second mask panel to overlap each other during the scanning evaporation process.
- It can be adapted to different vapor deposition films of different vapor deposition sub-areas; and - can correspond to vacuum evaporation of large-size substrates and large-size display modules; shorten the length of linear evaporation source and improve evaporation uniformity; And it can make the mask which is less than a thousand times the substrate area to be vapor-deposited, which reduces the difficulty of making the mask.
- FIG. 1 is a schematic cross-sectional structural view of a prior art vacuum evaporation apparatus
- FIG. 2 is a top plan view of a prior art substrate structure
- FIG. 3 is a top plan view of a prior art mask structure
- Figure 4 is a cross-sectional view of the vacuum evaporation apparatus of the first embodiment of the present disclosure in a second direction;
- Figure 5 is a plan view showing the structure of the substrate in Embodiment 1 of the present disclosure.
- FIG. 6 is a plan view of a first mask in Embodiment 1 of the present disclosure
- Figure 7 is a plan view of a second mask in Embodiment 1 of the present disclosure
- Figure 8 is a schematic view showing the pattern of the film in the embodiment.
- Figure 9 is a schematic view showing the first overlapping state of the first mask and the second mask
- Figure 10 is a schematic view of the second overlapping state of the first mask and the second mask 11 2 is a cross-sectional view of the vacuum evaporation apparatus in the second embodiment of the present disclosure
- FIG. 12 is a cross-sectional view of the vacuum evaporation apparatus of the second embodiment of the present disclosure in a first direction; Schematic;
- Figure 14 is a plan view showing the structure of the substrate in Embodiment 2.
- Figure 15 is a cross-sectional view of the vacuum evaporation apparatus of Embodiment 3 in a first direction;
- Figure 16 is a plan view showing the structure of the substrate in Embodiment 3.
- FIG. 17 is a schematic structural view of a first mask in Embodiment 3.
- 19 is a schematic diagram of a vapor deposition sub-region of a block pixel
- Figure 20 is a schematic view showing a third overlapping state of the first mask and the second mask.
- the present disclosure provides a vacuum evaporation apparatus, which can realize patterning of different vapor deposition films.
- the vacuum evaporation device provided by the present disclosure includes:
- a first mask driving mechanism 20 that moves and carries the first mask 201, the first mask 201 is located below the substrate 100;
- a second mask driving mechanism 30 that moves and carries the second mask 202, the second mask 202 is located below the first mask 201;
- An evaporation source 300 the evaporation source 300 is located below the second mask 202; wherein the first mask driving mechanism and the second mask driving mechanism are respectively driven Moving the first mask 201 and the second mask 202 to change the overlapping state of the mask regions of the first mask 201 and the second mask 202 Forming an effective mask pattern area A corresponding to the pattern of the pattern area 10 to be evaporated on the substrate 100.
- the first mask plate 201 and the second mask plate 202 respectively have a mask pattern area and a frame area, wherein the mask pattern area is formed with an opening portion 200]a and a shielding portion 2001b.
- the first mask 201 and the second mask 202 are in different relative positions, that is, when the first mask 201 and the second mask 202 are in different opposite overlapping states, the first mask 201 is on the first mask 201.
- the overlapping state of the opening portion 2001a and the opening portion 200a of the second mask 202 may be different, thereby forming an effective mask pattern area A capable of allowing the vapor deposition gas to actually pass.
- the pattern area 101 to be evaporated on the surface of the substrate 100 at least two mask sheets are respectively moved to change the overlapping state of the mask pattern areas 2001 of at least two mask sheets, thereby forming a surface to be steamed with the surface of the substrate 100.
- the pattern of the film of the plated pattern area 101 is adapted to the effective mask pattern area A to realize the patterning of the vapor deposited film.
- the number of masks of the vacuum evaporation apparatus may be two, but the disclosure does not limit the number of masks, for example, the number of masks may also be three. , four or more.
- the vacuum evaporation apparatus may further include a third mask driving mechanism, and the third mask driving mechanism and the first and second mask driving mechanisms In cooperation, the relative positions of the first, second and third masks are respectively changed, thereby changing the overlapping state of the mask pattern areas 2001 of the first, second and third masks.
- Fig. 4 is a cross-sectional structural view of the vacuum evaporation apparatus in the first direction X of the embodiment 1 of the present disclosure.
- the vacuum evaporation apparatus includes:
- the substrate driving mechanism 10 for moving and carrying the substrate 100, the surface of the substrate 100 is formed with a pattern area 101 to be evaporated;
- the first mask driving mechanism 20 that moves and carries the first mask 201;
- the second mask driving mechanism 30 for moving and carrying the second mask 202;
- the size of the effective mask pattern area A formed by overlapping the first mask board 201 and the second mask board 202 with the entire mask pattern area 101 to be evaporated The same size.
- the vacuum evaporation apparatus further includes an evaporation source driving mechanism that moves and carries the evaporation source 300.
- the film surface of the substrate 100 to be vapor-deposited faces downward, the first mask plate 201 is located below the substrate 00, the second mask plate 202 is located below the first mask plate 201, and the line evaporation source 300 is located at the second mask. Below the diaphragm 202.
- FIG. 5 is a top view of a substrate structure in Embodiment 1 of the present disclosure, including: a substrate 100; a pattern area 101 to be evaporated formed on the surface of the substrate 100; and a first alignment mark 10 on the outside of the pattern area 101 to be evaporated on the substrate 00 1.
- the outer side of the pattern to be vapor-deposited 101 includes two first alignment marks 1011 which are bilaterally symmetrical.
- 6 is a plan view showing the structure of the first mask in the embodiment; and
- FIG. 7 is a plan view showing the structure of the second mask in the embodiment.
- the first mask board 201 includes: a mask pattern area 2001U mask board border area 2002; a mask of the first mask board a second alignment mark 2011 on the outer frame area.
- the second mask 202 includes: a mask pattern area 2001U mask board border area 2002; a third alignment mark 2021 on the mask board border area 2002.
- the second alignment mark 2011 on the first mask 201 and the third alignment mark 2021 on the second mask 202 each have two.
- the first mask board 201 and the second mask board 202 have the same structure, and the mask pattern area 2001 of the first mask board 201 and the second mask board 202 are all the same. It is the same size as the entire pattern to be vapor-deposited pattern 101. It should be noted that, in practical applications, the structures of the first mask 201 and the second mask 202 may also be different, and the mask regions of the first mask 201 and the second mask 202 are in the pattern area 2001. The size may also be different from the size of the entire pattern area 101 to be evaporated, and only the effective mask formed by the mask pattern areas 2001 of the first mask 201 and the second mask 202 after overlapping each other is required. The size of the pattern area A of the board may be the same as the size of the entire pattern area 101 to be evaporated of the substrate 100.
- FIG. 8 is a schematic view showing the pattern of the film to be vapor-deposited on the substrate in the embodiment
- FIG. 9 and FIG. 10 are schematic diagrams showing the relative positions of the first mask and the second mask.
- the alignment mechanism may pass through the first alignment mark 1011 and the first on the substrate 100 before vapor deposition starts.
- a second alignment mark 201 1 on a mask 201 aligns the first mask 201 and the pattern area 101 to be evaporated of the substrate 100, and passes through the first alignment mark 101 on the substrate 100 and
- the third alignment mark 2021 on the second mask 202 aligns the second mask 202 with the pattern area 101 to be evaporated of the substrate 100.
- the substrate 100 and/or the first mask 201 and the second mask 202 are moved such that the corresponding first alignment mark 1011 on the substrate 100 and the corresponding second on the first and second masks are The third alignment mark coincides in the field of view and completes the alignment.
- the pattern size of the thin film pattern of the pattern area 101 to be evaporated on the substrate 100 is exactly the same as the size of the opening portion 2001a of the mask pattern area 2001 of the first mask 201, after the alignment is completed, as shown in FIG.
- the first mask 201 is completely coincident with the opening portion 2001a of the mask pattern region 2001 of the second mask 202, and the first mask 201 and the second mask 202 overlap each other.
- the size of the effective mask pattern area A formed later is the same as the size of the pattern to be vapor-deposited pattern 101 of the film to be vapor-deposited pattern area 101, and the size of the effective opening portion of the pattern area A of the effective mask sheet is The pattern size of the film to be vapor-deposited pattern area 101 is completely the same;
- the film width of the film pattern of the pattern region 101 to be evaporated on the substrate 100 in the second direction X is smaller than the width of the opening portion 2001a of the mask pattern region 2001 of the first mask 201 in the second direction X A2
- the pattern width bl in the first direction Y is the same as the width b2 of the opening portion 2001a of the mask pattern area 2001 of the first mask 201 in the first direction Y
- the mask portion 201 and the opening portion 200i a of the mask pattern region 2001 of the second mask 202 partially overlap in the second direction X (i.e., the opening of the first mask 201 as shown in FIG.
- the hole portion 200ia is partially blocked by the shielding portion 2001b of the second mask plate 202, and the effective opening portion in the effective mask pattern area A formed by the first mask plate 201 and the second mask plate 202 overlapping each other
- the width a0 in the second direction X is the same as the pattern width ai of the film to be vapor-deposited pattern region 101 in the second direction X, and the size of the effective mask pattern area A and the entire film to be vapor-deposited pattern area 101 The same size; likewise, the pattern width bl of the film on the substrate 100 to be vapor-deposited in the pattern area 101 in the first direction Y and the first
- the width b2 of the opening portion 2001a of the mask pattern area 2001 of the diaphragm 201 is the same or different in the first direction Y, the first mask 201 and the second mask 202 overlap each other after the alignment is completed.
- the size of the effective opening portion in the pattern area A of the effective mask formed later is the same as the pattern size of the film to be vapor-deposited pattern area 101, and the size of the effective mask pattern area A and the entire pattern area to be vapor-deposited 101
- the pattern of the pattern to be vapor-deposited 101 of the film is the same size.
- the substrate to be vapor-deposited 101 on the substrate 100 is moved to the upper side of the first mask 201 by the substrate driving mechanism; and driven by the first mask driving mechanism and the second mask by means of the alignment mechanism
- the mechanism respectively finely adjusts the positions of the first mask 201 and the second mask 202, and completes the first alignment mark 1011 on the corresponding substrate 100 and the second alignment mark on the first mask 201 and the second mask 202.
- the evaporation source 300 is turned on, the evaporation gas is evaporated upward to the surface of the substrate 100, and deposited to overlap the first mask 201 and the second mask 202
- the film of the effective opening pattern in the pattern area A of the effective mask is formed after the film.
- the size of the effective mask pattern area A formed by overlapping the first mask board 201 and the second mask board 202 may be the same as the size of the entire pattern area 101 to be evaporated. The same, so that the overlapping state of the first mask 201 and the second mask 202 can be changed according to the pattern characteristics of each layer of the film, and each layer of the film can be vapor-deposited to the entire substrate 100 in one time. (ie one-step vacuum evaporation).
- Figure 11 is a cross-sectional structural view of the vacuum evaporation apparatus in the second direction X in the second embodiment of the present disclosure
- Figure 12 is a side view of the vacuum evaporation apparatus in the first direction Y of the second embodiment of the present disclosure. 11 and FIG. 12, in this embodiment, the vacuum evaporation apparatus includes:
- the surface of the substrate 100 is formed with a pattern area 101 to be evaporated, and the pattern area 101 to be evaporated is divided into a plurality of vapor deposition sub-areas 1012 of the same size; the first mask is moved and carried.
- the second mask driving mechanism 30 that moves and carries the second mask 202, wherein the first mask 201 and the second mask 202 overlap each other to form an effective mask
- the size of the pattern area A is the same as the size of the steamed dice area 1012;
- the alignment mechanism 60 for aligning the first mask plate 201 and the second mask plate 202 with the vapor deposition sub-region 1012 to be vapor-deposited;
- a vapor deposition baffle 400 between the substrate 100 and the line evaporation source 300 capable of forming an evaporation gas permeation zone 4001 of the same size as the effective mask pattern area A and for Blocking the vapor deposition gas of the vapor deposition sub-region 1012 other than the current vapor deposition sub-region 1012 Block
- the transmission region 4001 corresponds to the current vapor deposition sub-region 1012 (that is, the non-vapor deposition region of the substrate 100 is shielded, and only the current vapor deposition sub-region 1012 is exposed to the vapor deposition gas transmission region 4001).
- the vapor deposition substrate 400 is located below the substrate 100, and the vapor deposition baffle 400 is located below the substrate 100 between the substrate 100 and the line evaporation source 300. .
- the vapor deposition baffle 400 may be disposed between the first mask 201 and the substrate 100 or under the second mask 202 or at the first mask 201 and the second mask.
- the position between the film plates 202 is such that the vapor deposition gas permeation zone 4001 corresponds to the current vapor deposition sub-region 012, and the vapor deposition gas shielding zone can block the non-evaporation zone of the substrate 100, and only the current vapor deposition zone is used.
- the region 1012 is exposed to the vapor deposition gas permeation zone 4001, which may be disposed at other locations between the substrate 100 and the line evaporation source 300.
- the vapor deposition baffle 400 is located below the second mask 202, and the line evaporation source 300 is located below the vapor deposition baffle 400.
- the vapor deposition baffle 400 is disposed under the second mask 202 to ensure a relatively short distance between the first mask 201 and the second mask 202 and the substrate 100, and the evaporation is performed.
- the distance that the gas passes through the pattern area of the mask to reach the surface of the substrate is relatively short, and the accuracy of the vapor deposition pattern can be ensured.
- Figure 13 is a top plan view showing the structure of the vapor deposition baffle 400 in the embodiment of the present disclosure.
- the vapor deposition baffle 400 includes four independently driveable sub-baffles 401 which can enclose the vapor deposition gas permeation zone 4001. It should be noted that the number of the sub-baffles 401 can be set as needed, for example, three or five or the like can be set.
- Figure 14 is a plan view of the structure of the substrate 100 in the embodiment of the present disclosure, comprising: a substrate 100; a pattern area 101 to be vapor-deposited formed on the surface of the substrate 100, the pattern to be vapor-deposited 101 is divided into a plurality of vapor-deposited sub-areas 1012 of the same size; A first alignment mark 1011 on the substrate 100.
- the vapor deposition pattern region 101 is divided into four vapor deposition sub-regions 1012, and each of the vapor deposition sub-regions 1012 includes two first alignment marks 1011 symmetrically left and right.
- the structure of the first mask in this embodiment is the same as that of the first mask in the first embodiment; the structure of the second mask is the same as the structure of the second mask in the first embodiment.
- the first mask 201 includes: a mask pattern area 2001; a mask border area 2002 ; and a second alignment mark 201 1 on the mask area of the mask.
- the second mask 202 includes: a mask pattern area 2001; a mask border area 2002; and a third alignment mark 2021 of the mask border area 2002.
- the first mask board 201 and the second mask board 202 have the same structure, and the mask pattern area 200 of the first mask board 201 and the second mask board 202 are both
- the size of the vapor deposition sub-region 1012 is the same.
- the structures of the first mask 201 and the second mask 202 may also be different, and the mask pattern area 2001 of the first mask 201 and the second mask 202 is different.
- the size may also be different from the size of the vapor-deposited sub-area 1012, and only the mask pattern area of the first mask 201 and the second mask 202 is ensured to form an effective mask pattern area after overlapping each other.
- the size of A may be the same as the size of the vapor deposition sub-region 1012.
- the thin film patterning diagram of the vapor deposition sub-region 1012 on the substrate 100 in this embodiment is the same as the thin film pattern diagram of the entire pattern to be evaporated in the embodiment 1.
- the first mask 201 and the second mask are used.
- the relative positional diagram of the board 202 is the same as the relative position of the first mask board 201 and the second mask board 202 in the first embodiment.
- the alignment mechanism passes the first alignment mark 10U on the substrate 100 and the second alignment mark 2011 on the first mask 201 to the first mask 201 and the current vapor deposition sub-region.
- 1012 performs alignment, and aligns the second mask 202 and the current vapor deposition sub-region 1012 through the first alignment mark 1011 on the substrate 100 and the third alignment mark 2021 on the second mask 202.
- the corresponding first alignment marks 1011 on the substrate 100 and the corresponding second alignment marks 2011 on the first mask 201 respectively.
- the corresponding third alignment mark 2021 on the second mask 202 overlaps in the field of view to complete the alignment.
- the pattern size of the thin film pattern of the vapor deposition sub-region 1012 on the substrate 100 is exactly the same as the size of the opening portion 2001a of the mask pattern region 2001 of the first mask 201, after the alignment is completed, as shown in FIG.
- the first mask 201 is completely coincident with the opening portion 2001 a of the mask pattern region 2001 of the second mask 202, and the first mask 201 and the second mask 202 overlap each other.
- the size of the effective mask pattern area A formed later is the same as the size of the vapor deposition sub-area 1012 of the film of the entire vapor deposition sub-region 1012, and the size of the effective opening portion of the effective mask pattern area A and the evaporation plate Area
- the film size of the film of the domain 1012 is identical.
- the film width a of the thin film pattern of the vapor deposition sub-region 1012 on the substrate 100 in the second direction X is smaller than the width a2 of the opening portion 2001a of the mask pattern region 2001 of the first mask 201 in the second direction X
- the pattern width bl in the first direction Y is the same as the width b2 of the opening portion 2001a of the mask pattern area 2001 of the first mask 20 in the first direction Y
- the mask portion 201 and the opening portion 2001a of the mask pattern region 2001 of the second mask 202 partially overlap in the second direction X (i.e., the opening of the first mask 201 as shown in FIG.
- the hole portion 2001a is partially blocked by the shielding portion 2001b of the second mask plate 202, and the effective opening portion of the effective mask plate pattern area A formed by the first mask plate 201 and the second mask plate 202 overlapping each other
- the width a0 in the second direction X is the same as the pattern width a1 of the film of the vapor deposition sub-region 1012 in the second direction X, and the size of the effective mask pattern area A and the evaporation of the film of the entire vapor deposition sub-area 1012
- the plated area 1 012 has the same size.
- the film width bl of the film of the vapor deposition sub-region 1012 on the substrate 100 in the first direction Y and the opening portion 200i of the mask pattern region 2001 of the first mask 201 are in the first direction Y
- the width b2 is the same or different, the size of the effective opening portion in the effective mask pattern area A formed by the first mask 201 and the second mask 202 after the alignment is completed and the vapor deposition
- the pattern size of the film of the region 1012 is the same, and the size of the effective mask pattern area A is the same as the size of the vapor deposition sub-area 1012 of the film of the entire vapor deposition sub-area 1 012.
- the first vapor deposition sub-region 1012 on the substrate 100 is moved to the top of the mask by the substrate driving mechanism; and the position of the mask is finely adjusted by the alignment mechanism through the alignment mechanism to complete the corresponding substrate 100. Alignment between the first alignment mark 1011 and the second and third alignment marks on the first and second masks; respectively, moving the four vapor deposition sub-baffles 401 in the horizontal direction by the shutter driving mechanism Up to a specified position, shielding an area other than the sub-area to be evaporated by the substrate 100; opening the evaporation source 300, the evaporation gas is evaporated upward to the surface of the substrate 100, and deposited to overlap the first and second mask sheets Forming a pattern of the pattern of the mask area A of the effective mask; after performing the evaporation of the first vapor deposition sub-area 1012, repeating the above operation to complete the vacuum evaporation of the second steamed sub-region 1012; and so on, until Vacuum evaporation of the entire
- each of the vapor deposition sub-regions 1012 has the same area.
- the area of the vapor deposition sub-area 1012 may also be designed to be different.
- the plated baffle 400 is positioned or the relative position between the sub-baffles 401 in the vapor deposition baffle 400 is adjusted to block a portion of the mask pattern area.
- the film patterns in the respective vapor deposition sub-areas 012 may be different.
- the first alignment mark 1011 on the outer side of each of the vapor deposition sub-regions 1012, the second alignment mark 2011 on the first mask 20, and the second The position of the third alignment mark 202 on the mask 202 is used to effect patterning of the different vapor deposition sub-regions 1012.
- the vacuum evaporation device is a distributed vacuum evaporation device, and the surface of the substrate 100 is divided into a plurality of vapor deposition sub-regions according to the characteristics of the pattern to be evaporated on the surface of the substrate 100 (for example, 1 to 0).
- the mask of the area of the vapor deposition sub-region 1012 which is smaller than the area of the substrate 100 by several times is vapor-deposited in each of the vapor deposition sub-regions 1012.
- the evaporation is performed on the vapor deposition sub-area 1012 having a small area, the length of the line evaporation source 300 can be shortened, and the evaporation uniformity can be improved; and the masking area of the vapor deposition sub-area 1012 which is smaller than the area of the substrate ⁇ )0 can be used.
- the vapor deposition of the film plate reduces the difficulty in fabricating the mask, thereby enabling vacuum evaporation of the large-sized substrate 100 and the large-sized display module.
- FIG. 15 is a vacuum evaporation apparatus of the third embodiment of the present disclosure. Schematic diagram of the side structure of the first direction Y.
- the vacuum evaporation apparatus includes:
- the surface of the substrate 100 is formed with a pattern area 101 to be evaporated, and the pattern area 101 to be evaporated is divided into a plurality of vapor deposition sub-areas 1012 of the same size; the first mask is moved and carried.
- the second mask driving mechanism 30 that moves and carries the second mask 202, wherein the first mask 201 and the second mask 202 overlap each other to form an effective mask
- the size of the pattern area A is smaller than the size of the vapor deposition sub-area 1012;
- Ffi is an alignment mechanism 60 for aligning the first mask plate 201 and the second mask plate 202 with the vapor deposition sub-region 1012 to be vapor-deposited, a vapor deposition baffle (Shutter) 400, capable of forming an evaporation gas permeation zone 4001 having the same size as the effective mask pattern area A;
- the gas permeation zone 4001 corresponds to a portion of the vapor deposition sub-region 1012 to be vapor-deposited (ie, the non-evaporation region of the substrate 100 is shielded, and only the portion of the vapor deposition sub-region 10 2 to be vapor-deposited is exposed to the vapor deposition gas. Through the area 4001).
- the vapor deposition substrate 400 is located below the substrate 100, and the vapor deposition baffle 400 is located below the substrate 100 between the substrate 100 and the line evaporation source 300. .
- the vapor deposition baffle 400 may be disposed between the first mask 201 and the substrate 100 or under the second mask 202 or at the first mask 201 and the second mask.
- the position between the film plates 202 is such that the vapor deposition gas permeation zone 4001 corresponds to a portion of the current vapor deposition sub-region 1012, and the vapor deposition gas shielding zone can block the non-evaporation zone of the substrate 100, and only the current evaporation is performed.
- This portion of the sub-region 1012 is exposed to the vapor-deposited gas permeation zone 4001, which may be disposed at other locations between the substrate 100 and the line evaporation source 300.
- the vapor deposition baffle 400 is located below the second mask 202, and the line evaporation source 300 is located below the vapor deposition baffle 400.
- the vapor deposition baffle 400 is disposed under the second mask 202, so that the distance between the first mask 201 and the second mask 202 and the substrate i00 is relatively short, thereby evaporating gas.
- the distance from the pattern area of the mask to the surface of the substrate is relatively short, and the accuracy of the vapor deposition pattern can be ensured.
- the structure of the vapor deposition baffle 400 in this embodiment is the same as that of the vapor deposition baffle in the second embodiment.
- the vapor deposition baffle 400 includes four sub-baffles 401 which are independently driven, and the four sub-baffles 401 can enclose the vapor deposition gas permeation zone 4001. It should be noted that the number of the sub-baffles 401 can be set as needed, for example, it can also be set to 3 or 5 or the like.
- the substrate driving mechanism 10, the first reticle driving mechanism 20, the second reticle driving mechanism 30, the evaporation source driving mechanism 40, the damper driving mechanism 50, and the alignment driving mechanism 70 may be a moving and carrying substrate, Any of the first mask, the second mask, the evaporation source, the shutter, and the alignment mechanism, such as a robot or a jig with a rolling device such as a sprocket. Only shown in the figure The expression of meaning should not be seen as a limitation on its implementation.
- FIG. 16 is a top view of a substrate structure according to an embodiment of the present disclosure, including: a substrate 100; a pattern area 10 to be evaporated formed on the surface of the substrate 100, and the vapor deposition pattern area 101 is divided into a plurality of vapor deposition sub-areas 1012 of the same size; The first alignment mark 101 1 on the substrate 100.
- the pattern is divided into four vapor deposition sub-regions 1012, and each of the vapor deposition sub-regions 1012 includes two first alignment marks 101 and two fourth alignment marks 1013, which are optional.
- the fourth alignment mark 013 is an elongated structure extending along the first direction Y, and may penetrate the corresponding entire vapor deposition sub-region 1012.
- Figure 17 is a plan view showing the structure of the first mask 201 in the present embodiment
- Figure 18 is a plan view showing the structure of the second mask 202 in the present embodiment.
- the first mask 201 includes: a mask pattern area 2001; a mask border area 2002; a second alignment mark 2011 on the mask area of the mask and a fifth alignment mark 2012 .
- the second mask 202 includes: a mask pattern area 2001; a mask border area 2002; a third alignment mark 2021 of the mask border area 2002 and a sixth alignment mark 2022.
- the second aligning mark 201 1 and the fifth aligning mark 2012 are respectively disposed on the first mask 201
- the third aligning mark 2021 on the second mask 202 is There are two sixth alignment marks 2022 each.
- the first mask board 201 and the second mask board 202 have the same structure, and the mask area of the first mask board 201 and the second mask board 202 are the same.
- the width b2 of the 2001 in the first direction Y is smaller than the pattern width bl of the steamed dice region 1012, which is the mask pattern area of the first mask 201 and the second mask 202.
- the width a2 of the 2001 in the second direction X is the same as the width ai of the vapor deposition sub-region 1012 in the second direction X such that the width of the effective mask pattern area A in the first direction Y is smaller than The width of the current vapor deposition sub-region 1012 of the substrate 100, and the width in the second direction X perpendicular to the first direction Y is equal to the width of the current vapor deposition sub-region 1012 of the substrate 100.
- the structures of the first mask 201 and the second mask 202 may also be different, and the mask pattern area 2001 of the first mask 201 and the second mask 202 is different.
- the size may also be different from the size of the vapor deposition sub-area 1012, and only the effective mask pattern area A formed after the mask pattern areas 2001 of the first mask 201 and the second mask 202 are overlapped with each other is required.
- the size may be the same as the size of the vapor deposition sub-area 1012.
- the alignment mechanism passes through the first alignment mark 1011 and the first mask on the substrate 100.
- the second alignment mark 2011 on the film plate 20 aligns the first mask plate 201 with the current vapor deposition sub-region 1012, and passes through the first alignment mark 10 1 and the second mask plate on the substrate 100
- the third alignment mark 2021 on the 202 aligns the second mask 202 and the current vapor deposition sub-region 1012, specifically by moving the substrate 00 and/or the first and second masks.
- the corresponding first alignment mark 1011 on the substrate 100 coincides with the corresponding second alignment mark 2011 on the first mask 201 and the corresponding third alignment mark 2021 on the second mask 202, respectively, thereby The initial alignment of the evaporation is completed.
- the evaporation source 300, the vapor deposition baffle 400, the first mask 201, and the second mask 202 are relatively fixed in position, and the evaporation gas passes through the first mask 201 and the second mask.
- the film plate 202 overlaps with each other to form an effective mask pattern area A.
- the substrate 100 is moved in the first direction Y by the substrate driving mechanism until vacuum evaporation of a vapor deposition sub-area 1012 is completed.
- the alignment mechanism initializes the first mask 201 and the vapor deposition sub-region 1012 to be evaporated through the first alignment mark 1011 on the substrate 100 and the second alignment mark 2011 on the first mask 201 In the alignment, the alignment mechanism passes the first alignment mark 1011 on the substrate 100 and the third alignment mark 202i on the second mask 202 to the second mask 202 and the vapor deposition sub-region to be evaporated.
- the alignment mechanism 1012 performs initial alignment, and the alignment mechanism passes through the fourth alignment mark 1013 on the substrate and the first mask during the movement of the substrate in the Y direction in the first direction, that is, during the scanning evaporation process a fifth alignment mark 2012 on the board 201 and a sixth alignment mark 2022 on the second mask 202 on the first and second mask sheets and the current vapor deposition sub-area in the first direction Y
- the relative position is continuously moved to perform alignment.
- the first mask driving mechanism and the second mask driving mechanism accurately position the first mask 201 and the second mask 202 in the second direction X according to the result of the alignment.
- the adjustment is such that the positions of the first mask 201, the second mask 202, and the vapor-deposited sub-area 1012 to be evaporated are not shifted in the second direction X.
- the above-described operation is repeated to complete the vacuum evaporation of the second vapor deposition sub-region 1012; and so on, until the vacuum evaporation of the entire substrate 100 is completed.
- each of the steamed dice regions 1012 is the same.
- the area of the vapor deposition sub-area 1012 may also be designed to be different. In this case, it is necessary to move the position of the vapor deposition baffle 400 or adjust the relative position of the sub-baffle 401 in the vapor deposition baffle 400, and block the partial mask.
- Figure 19 is a schematic diagram showing the vapor deposition sub-region of a block pixel. As shown in FIG.
- the vapor deposition sub-region 1012 includes a first region S1, a second region S2, and a third region S3 sequentially distributed along the first direction Y, wherein in the second direction X, the first region S1
- the width a1 of the vapor-deposited film pattern is different from the opening portion 2001a of the mask pattern region of the first mask 201 and the second mask 202 by a width a2 - 3 ⁇ 4; the width of the vapor-deposited film pattern of the second region S2 is 0, that is, no vapor deposition film, the width a]3 of the vapor deposition film pattern of the third region S3 is smaller than the opening portion 2001a of the mask pattern region 2001 of the first mask 201 and the second mask 202 The width a2.
- the working process of vapor-depositing the film shown in Fig. 9 by using the vacuum evaporation apparatus provided in this embodiment is as follows:
- the opening portion 2001a of the plate pattern area 2001 is completely overlapped.
- the relative positional relationship between the first mask plate 20 and the second mask plate 202 is as shown in FIG. 9, and the effective opening of the effective mask pattern area A is as shown in FIG.
- the width of the portion is the same as the width of the vapor-deposited film pattern a1 of the first region Si; the second region S2 has no vapor-deposited film, and when the line evaporation source 300 scans the second region S2, the first mask 201 and the second mask The opening portion 2001a of the mask pattern area 2001 of the board 202 is completely blocked by the other side. At this time, the relative positional relationship between the first mask board 201 and the second mask board 202 is as shown in FIG.
- the pattern regions of the mask plates on at least two mask plates can be changed according to the graphic features of the pattern area to be evaporated on the surface of the substrate.
- the state is matched with the pattern of the pattern area to be evaporated on the surface of the substrate, thereby realizing the patterning of the vapor-deposited film of each layer, reducing the manufacturing cost of the mask sheet; and, according to the pattern area to be vapor-deposited on the surface of the substrate 100
- the surface of the substrate 100 is divided into a plurality of vapor deposition sub-regions 1012 (for example, 1 to 10), and each of the vapor deposition sub-regions 1012 is completed by using a mask sheet which is smaller than the substrate 100 area or the vapor deposition sub-area 1012 area.
- the evaporation is performed on the vapor deposition sub-area 1012 having a small area, the length of the line evaporation source 300 can be shortened, and the evaporation uniformity can be improved; and the mask can be made smaller than the area of the substrate 100 or the area of the vapor deposition sub-area 1012 several times.
- the film plate is evaporated to reduce the production of the mask Difficulty, thereby enabling vacuum evaporation of large-size substrates 00 and large-size display modules.
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Electroluminescent Light Sources (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Priority Applications (1)
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US14/436,360 US20160355923A1 (en) | 2014-03-07 | 2014-08-05 | Vacuum evaporation device and vacuum evaporation method |
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CN201410081835.4 | 2014-03-07 | ||
CN201410081835.4A CN103866238A (zh) | 2014-03-07 | 2014-03-07 | 一种真空蒸镀装置 |
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CN103866238A (zh) * | 2014-03-07 | 2014-06-18 | 京东方科技集团股份有限公司 | 一种真空蒸镀装置 |
CN105632899A (zh) * | 2014-11-04 | 2016-06-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | 真空环境中器件图形化制备方法 |
CN104570489B (zh) * | 2014-12-26 | 2018-07-03 | 深圳市华星光电技术有限公司 | 掩模板及光配向方法 |
CN105810564A (zh) * | 2014-12-30 | 2016-07-27 | 展讯通信(上海)有限公司 | 用于制备mos管的组合掩膜版 |
CN107868939A (zh) * | 2016-09-27 | 2018-04-03 | 合肥欣奕华智能机器有限公司 | 一种线型蒸发源的蒸镀方法及蒸镀设备 |
CN107604314B (zh) * | 2017-09-18 | 2019-10-29 | 联想(北京)有限公司 | 一种蒸镀方法以及蒸镀系统 |
CN107400851B (zh) * | 2017-09-25 | 2019-11-05 | 京东方科技集团股份有限公司 | 一种掩膜板图形的制备方法及掩膜板 |
CN108172667B (zh) * | 2017-12-29 | 2020-02-11 | 安徽三安光电有限公司 | 一种石墨盘及发光二极管的制作方法 |
CN108198958B (zh) | 2018-01-30 | 2020-06-30 | 京东方科技集团股份有限公司 | 显示基板及其制作方法、制作设备、显示装置 |
CN108677147B (zh) * | 2018-06-13 | 2020-04-21 | 京东方科技集团股份有限公司 | 蒸镀装置及蒸镀方法 |
CN111334773A (zh) * | 2018-12-18 | 2020-06-26 | 财团法人工业技术研究院 | 蒸镀设备与蒸镀制作工艺 |
JP7266555B2 (ja) * | 2020-06-16 | 2023-04-28 | キヤノン株式会社 | アライメント方法および蒸着方法 |
CN112210758B (zh) * | 2020-09-23 | 2022-08-12 | 铜陵市超越电子有限公司 | 金属化薄膜蒸镀用错位组合式料炉 |
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