EP1771600A2 - Vakuumbeschichtungsanlage und verfahren zur vakuumbeschichtung - Google Patents
Vakuumbeschichtungsanlage und verfahren zur vakuumbeschichtungInfo
- Publication number
- EP1771600A2 EP1771600A2 EP05773105A EP05773105A EP1771600A2 EP 1771600 A2 EP1771600 A2 EP 1771600A2 EP 05773105 A EP05773105 A EP 05773105A EP 05773105 A EP05773105 A EP 05773105A EP 1771600 A2 EP1771600 A2 EP 1771600A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- substrate
- layer
- substrates
- deposited
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001771 vacuum deposition Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 70
- 238000009434 installation Methods 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 claims abstract description 172
- 239000000758 substrate Substances 0.000 claims abstract description 170
- 239000011248 coating agent Substances 0.000 claims abstract description 157
- 238000004544 sputter deposition Methods 0.000 claims abstract description 73
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000005477 sputtering target Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 5
- 238000005546 reactive sputtering Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 238000006748 scratching Methods 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 230000003667 anti-reflective effect Effects 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000001947 vapour-phase growth Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 119
- 239000007789 gas Substances 0.000 description 33
- 230000008569 process Effects 0.000 description 21
- 238000000151 deposition Methods 0.000 description 12
- 230000004888 barrier function Effects 0.000 description 10
- 238000011161 development Methods 0.000 description 9
- 230000018109 developmental process Effects 0.000 description 9
- 150000004767 nitrides Chemical class 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 239000002318 adhesion promoter Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/515—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using pulsed discharges
-
- 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
- C23C14/34—Sputtering
Definitions
- Vacuum coating system and method for vacuum coating are Vacuum coating system and method for vacuum coating
- the invention relates generally to the field of vacuum deposition or vacuum deposition on substrates, and more particularly to a vacuum deposition system and method for vacuum coating.
- WO 00/52221 discloses an apparatus and method for simultaneous PVD and CVD coating of elongate substrates.
- the elongate substrate such as a fabric or a film, is passed through coating stations for PVD and CVD coating, the respective in a coating station areas of the substrate are coated simultaneously.
- the coating stations are spatially and vacuum-technically separated from each other by barriers with openings for the substrate.
- PVD and CVD processes it may be advantageous or even necessary to sequentially operate PVD and CVD coating so that the processes can not interfere with each other.
- an oxygen-containing atmosphere for CVD coating may result in undesirable oxidation of the target material for a sputtering process if the target surface is not sufficiently protected.
- the invention is based on the object, the
- the invention provides a device for vacuum coating of substrates, which comprises a vacuum chamber, a device for holding at least one substrate, at least a first
- Coating region of the vacuum chamber with at least one device for plasma pulse-induced chemical vapor deposition (PICVD) and at least one second coating region of the vacuum chamber with at least one Device for sputter coating, as well as a transport device for transporting the substrate into the coating areas comprises.
- PICVD plasma pulse-induced chemical vapor deposition
- a method for vacuum coating substrates according to the invention which can be carried out in particular with a vacuum coating device according to the invention, at least one substrate is held in a vacuum chamber, at least one layer of a coating in the at least one first coating region of the vacuum chamber on the substrate by means of plasma pulses.
- PICVD induced chemical vapor deposition
- PICVD induced chemical vapor deposition
- Electron cyclotron resonance sputtering ECR sputtering
- Ion beam sputtering can be used.
- a coating region in the sense of the invention is understood to mean a region in the vacuum chamber in which a substrate arranged there can be coated.
- the PICVD coating in the coating area generates the plasma for the vacuum deposition.
- the substrate can be arranged by means of the transport device sequentially in the coating areas and in the Coating each at least one layer of the coating are deposited to produce multilayer coatings.
- Coating and sputter coating within a coating system coatings can now be deposited for the first time, which otherwise could be made only in separate systems, which under certain circumstances, an oxidation or other reaction with atmospheric components result.
- the PICVD method also allows for less
- a transport device for the simultaneous transport of a plurality of substrates.
- the substrates can thus be arranged on the transport device and coated successively or simultaneously.
- Such an arrangement is also useful for laboratory or test operation, since the substrates do not all have to be provided with the same coating. Rather, it can do so without an input or Ausschleusevorgang various coatings deposited and thus for example, measurement or test series are performed.
- the sputtering may also include reactive sputtering, or the sputter coating device may comprise a device for reactive sputtering.
- oxide and / or nitride layers can be produced by introducing oxygen and / or nitrogen into the vacuum chamber, in order to bring about a reaction of the deposited layer with the oxygen and / or nitrogen-containing atmosphere in the chamber.
- This can be carried out according to an embodiment of the invention, for example, each during the sputtering of a layer, without leading to target poisoning cause, according to the gas components, an oxygen and / or nitrogen-containing plasma is generated for sputtering of the target.
- the gas can be admitted, for example, in the first coating area by means of a gas supply for the device for PICVD coating.
- a device for generating a nitrogen and / or oxygen-containing plasma is provided for this purpose.
- Sputter coating also be designed for the production of such a plasma, so that the means for generating a nitrogen and / or oxygen-containing plasma is part of at least one of these devices.
- An embodiment of the method envisages sputtering a layer of a coating onto the substrate in at least one first coating region of the vacuum chamber, arranging the substrate with the transport device in a second coating region and oxidizing and / or nitriding it there by means of an oxygen- or nitrogen-containing plasma to produce oxide and / or nitride layers.
- this process can also be carried out several times by repeatedly transporting the substrate between the coating regions.
- a plasma which can be generated by means of the PICVD coating or the sputter coating device can also advantageously be used to activate or clean the substrate surface by means of the plasma.
- an oxygen- and / or nitrogen-containing plasma can also be used for this purpose.
- Activation is beneficial, inter alia, with plastic substrates, such as PMMA substrates, to improve the adhesion of subsequently applied layers.
- the activation and / or cleaning can be carried out as a pre-intermediate or post-treatment step.
- the device comprises one or more devices for rotating the substrate.
- the rotation of the substrate with the transport device can serve, for example, the substrate on a circular transport path in the Move coating areas.
- the coating regions may be arranged along the circumferential direction of a circular section of the transport path of the transport device, so that the substrates are driven through the coating regions by the rotation along the transport path and arranged and coated in front of the coating devices.
- the transport path is understood to be the path along which the substrates or substrate holders are moved in the vacuum chamber.
- a further embodiment of the invention provides for the motion of a plurality of substrates to be controlled independently of one another in order to enable a flexibly adaptable coating process.
- the transport device may advantageously comprise a plurality of independently controllable devices for moving substrates.
- the substrate is moved linearly in the vacuum chamber by means of a correspondingly formed transport device.
- a linear can also be combined with a circular movement of the substrate, such as by the transport path having linear and circular sections, or the substrates are guided linearly on rotatable holders.
- PICVD plasma pulse-induced chemical vapor deposition
- the devices for sputter coating along at least one linear Section of the transport path of the transport device are arranged so that the substrates arrive during transport in the individual coating areas.
- the method provides for moving the substrate during the coating. This is particularly useful to produce uniform coatings, since inhomogeneities of the sputtering or PICVD plasma coating can be averaged out by a movement of the substrate.
- the transport device may also have other functions in addition to the transport of the substrates.
- the transport device can also effect a separation of the coating areas. This is useful, inter alia, to maintain a pressure gradient in the vacuum chamber and / or to achieve electromagnetic shielding. Such a separation of the coating areas can be achieved according to a development of the invention in that the
- Transport means comprises a substrate holder, which is arranged between opposite means for plasma pulse induced chemical vapor deposition (PICVD) and for sputter coating.
- PICVD plasma pulse induced chemical vapor deposition
- a shut-off device for shutting off the sputtering target may additionally be present.
- Cleaning procedure for the removal of water or, for example, an oxide layer can be shut off on the substrate to prevent contamination of the sputtering target.
- the shut-off device serves during sputtering in the closed position, ie in front of the target surface as a deposition surface of oxidized / nitrided target material, especially when cleaning the target, to protect the substrate surface.
- Economics can be coated in parallel or sequentially with at least one layer of the coating according to yet another embodiment of the invention, a plurality of substrates.
- the multiple substrates can be arranged together in a coating area, for example.
- Several devices for plasma pulse-induced chemical vapor deposition (PICVD) and / or multiple sputter coating devices may also be present.
- the devices can also be operated at least partially in parallel, so that, for example, one layer of a coating is deposited in each case parallel to one or more substrates arranged in the associated coating region with each of the simultaneously operated coating devices.
- the substrates can also be moved through the respective coating regions of the devices and in each case a specific layer can be deposited, so that a multilayer coating is formed.
- a pumping system is determined inter alia by the cross section and the location of the connection of the vacuum chamber to the pumping system.
- An embodiment of the invention provides to use a pumping device with multiple connections to the vacuum chamber.
- each coating area at least one port.
- the pumps connected to the connections can be dimensioned in accordance with the amount of gas accumulating in the various types of coating in their pumping power in order to obtain an optimum pumping performance with minimal effort.
- at least one device for evaporating a coating is additionally provided. The possibility of also depositing a layer by vapor deposition, the variety of coatable layer systems can be further increased.
- the method according to the invention or the vacuum coating device according to the invention are a coating by combining PICVD and sputter coatings in a coating chamber to produce a variety of different coatings for substrates, for example for depositing a multilayer coating with layers of different composition, multilayer alternating layers of alternating composition with a deposited adhesion promoter layer, and / or a gradient layer suitable.
- sputtering at least one metallic and / or magnetic layer can also be deposited and, for example, combined with one or more PICVD layers of the coating.
- An interesting application is inter alia the sputter coating of plastic substrates. Plastic is often not good to coat with durable layers by sputtering.
- a primer layer can be applied by means of PICVD, on which the sputtered layer adheres well.
- the fields of application and the function of layers produced according to the invention are correspondingly diverse.
- barrier layers can be made which have underlying layers, such as a sputtered one
- Interference filter layers which can be applied according to the invention.
- the method is well suited to produce electrically conductive, transparent layers, which then also can be protected with one or more further layers.
- Such layers can also be applied to a bonding agent layer deposited according to the invention, in particular by means of PICVD, in order to improve the adhesion.
- the idea is to deposit an indium tin oxide layer.
- An application for such coatings include displays, such as for a mobile phone or in particular a PDA ("portable digital assistant", or Palm computer) or a touch screen.
- PDA portable digital assistant
- a touch screen Especially for a PDA or a touch screen, information for the information processing system is entered by touching the display, so that anti-scratch protection on the display is advantageous for the life.
- zirconium, niobium or tantalum containing layers such as their oxides or nitrides or alloys with these materials can be prepared with PICVD generally difficult.
- PICVD PICVD
- a further development of the invention provides that at least one layer of the layer by means of
- Electron cyclotron resonance sputtering (ECR sputtering) is deposited. Layers, which are applied by this deposition method, are often characterized by a particularly high density and freedom from defects.
- the device according to the invention may comprise a device for electron cyclotron resonance sputtering, in which case the device for sputter coating may be appropriately designed and / or wherein the device for electron cyclotron resonance sputtering may be used in addition to the devices for plasma pulse induced chemical vapor deposition (PICVD ) and may be provided for sputter coating.
- PICVD plasma pulse induced chemical vapor deposition
- the device may additionally have a heating device.
- heating the chamber may be beneficial to prevent deposition of process gas components in the chamber.
- the heating of the substrate for example, during sputtering of layers may be beneficial to produce very dense layers.
- Fig. 1 is a schematic plan view of a
- Fig. 2 is a schematic representation of a
- FIG. 3 shows an embodiment of a substrate holder of a transport device
- FIG. 4 shows a further embodiment of a device according to the invention for the vacuum coating of substrates
- Fig. 5 shows a variant of that shown in Fig. 4
- FIG. 6 shows parts of a further embodiment of a device according to the invention with a transport device with conveyor belt
- FIG. 9 shows a cross section through an inventively coated display screen.
- the device 1 shows a schematic plan view of a first embodiment of a device according to the invention, designated by the reference numeral 1 as a whole, for the vacuum coating of substrates.
- the device 1 comprises a vacuum chamber 3, in which a transport device 7 for transporting substrates 5 in coating areas 11, 12 of the vacuum chamber 3 is arranged.
- the device 1 furthermore has a device 9 associated with the coating region 11 for plasma pulse-induced chemical vapor deposition (PICVD) and a device 13 associated with the coating region 12 for sputter coating.
- PICVD plasma pulse-induced chemical vapor deposition
- the transport device 7 comprises a rotatable substrate holder 71, on which a plurality of substrates 5 - in the case of the device shown in FIG. 1, by way of example, four substrates 5 are arranged, simultaneously transported by rotation and simultaneously or successively in certain cases can be coated. Due to the rotation of the substrates 5 on the transport device 7, or its substrate holder 71, the substrates 5 can each be transported into the coating areas 11, 12 for deposition of a PICVD or sputtering layer. Due to this arrangement, in this embodiment, a circular transport path, along which the coating areas 11, 12 are arranged, results.
- the substrate holder 71 of the transport device 7 is arranged between opposing devices 9, 13 for plasma pulse-induced chemical vapor deposition (PICVD) and sputter coating.
- PICVD plasma pulse-induced chemical vapor deposition
- a certain separation of the coating regions 11, 12 with the coating devices 9, 13 is achieved.
- an at least partially electromagnetic shielding and / or a pressure barrier between the coating regions 11, 12 is achieved.
- a gas supply 17 is provided, which is connected to gas inlets 171 at the coating areas 11, 12. With the gas inlets 171 can then each have a suitable process process or sputtering gas in the
- Coating regions 11, 12 for generating a plasma for the PICVD deposition, or for cathode sputtering of a target for sputter coating of a substrate 5 are embedded.
- the sputter coating device 13 comprises, in addition to the associated gas inlets 171, a sputtering magnetron 131, a high voltage power supply 133 for supplying the sputtering magnetron 131, an arc suppression device 132 connected between the power supply 133 and the magnetron 131, and a sputtering target 135
- the invention provides a shut-off device 134 for selectively blocking the sputtering target 135.
- a temporary blocking of the target is particularly advantageous for avoiding contamination during certain treatment steps of the substrate or substrates 5 to be coated.
- the sputtering target 135 may be shut off during a plasma pulse induced chemical vapor deposition or during a cleaning procedure to remove water or an oxide layer on the substrate 5 to prevent precipitation of a PICVD coating or oxides originating from water or from the substrate.
- substrates in the chamber may be protected from precipitation of sputtered material.
- the sputtering gas supplied via the gas inlets 171 can, in addition to the usual noble gases by means of the gas supply 17 also in addition gases are added to the reactive sputter coating. Also, such gases, in particular nitrogen and / or oxygen, can be introduced via the gas inlets 171 of the device 9 for PICVD coating. With these gas constituents, an oxygen and / or nitrogen-containing plasma then forms in the sputter coating. In the plasma, for example, it then comes to the formation of reactive radicals of these gases, which cause oxidation or nitration of the layer components.
- the device 9 for PICVD coating comprises, in addition to the gas inlets 171 for the inlet of the process gas, an antenna 90 for supplying the electromagnetic radiation for the ignition of the plasma and a generator 92 for the generation of pulsed electromagnetic energy.
- a tuning unit 91 connected between antenna 90 and generator 92 is provided, with which the coupling of the radiation into the coating area 11 can be set and optimized.
- the generator 92 may be configured to generate microwaves, for example.
- a microwave frequency of 2.45 GHz is used for PICVD coating.
- the device 9 for plasma pulse-induced chemical vapor deposition may also perform other functions than the deposition of a PICVD layer.
- a device for generating a nitrogen and / or oxygen-containing plasma is provided.
- the means 9 for plasma pulse-induced chemical vapor deposition can then be used as such means for producing a nitrogen and / or oxygen-containing plasma, by introducing oxygen and / or nitrogen-containing gas through the gas inlets 171 and by operation of the Generators 92 an oxygen and / or nitrogen-containing plasma in the coating area 11 is generated.
- oxide and / or nitride layers can be deposited on the substrate 5 by sputtering a layer of a coating on the substrate 5 in the coating region 12 of the vacuum chamber 3, the substrate 5 with the transport device 7 in the coating region 11 and arranged there by means of oxygen - or nitrogen-containing plasma is oxidized or nitrided. This process can be repeated several times to produce thicker oxide and / or nitride layers.
- Such a nitrogen-containing and / or oxygen-containing plasma can also be used to activate and / or clean the substrate surface as a pre-and / or intermediate and / or post-treatment step in coating the substrate according to the invention.
- a pumping device 15 with a high-vacuum pumping device 151 and a fine-vacuum pumping device 152 is provided.
- a pumping device 15 with a high-vacuum pumping device 151 and a fine-vacuum pumping device 152 is provided.
- Pressure control 153 provided.
- the pumping device 15 is connected via a connection 154 to the chamber 3.
- the charging device 19 may comprise a loading door, through which the substrates can be inserted and removed from the outside.
- a heating device 20 is provided with which the vacuum chamber 3 can be heated. This is for example, in the PICVD coating advantageous to prevent precipitation of process gas constituents, in particular of coating precursors.
- the substrate holder 7 may have a heating device, with which the substrate 5 can be heated. Among other things, heating the substrate may increase the quality of sputter deposited layers.
- the pumping device 15 comprises a plurality of ports 154, 155 to the vacuum chamber 3.
- the port 154 with a high-vacuum pumping device 151 and port 155 with a fine vacuum pumping device 152 is connected.
- the high-vacuum pumping device 151 is connected to a pre-pressure pumping device 160 via the fine-vacuum pumping device 152 as an additional pressure stage, wherein the high-vacuum and fine-vacuum pumping devices 151, 152 can be separated from one another by a valve 156.
- connections 154, 155 to the differently designed pumping devices are assigned in particular to the different coating regions 11, 12. Since the coating processes generally different gas pressures are used and therefore a
- FIG. 3 shows a development of the transport device 7 with substrate holder shown in FIG. 1. That in Fig. 2
- the substrate holder 71 is rotatable about an axis 72, so that the substrates 5, as in the device 1 shown in FIG be transported along a circular transport path.
- the substrates 5 are each still rotatable about axes 73, wherein the axes 73 are perpendicular to the axis of rotation 72 in the example shown in FIG. 22.
- a substrate 5 may be moved about one or both axes 72, 73 in the plasma in order to obtain a determination of inhomogeneities of the plasma and thus a uniform coating.
- the transport device 7 of this embodiment of the invention comprises a rotary drive on which a plurality of substrate holders 71 are arranged. With the rotary device, the substrate holders 71 are conveyed along a circular transport path with the substrates not shown in FIG. 4 for the sake of clarity.
- the substrate holders 71 may be constructed, for example, according to the embodiment shown in FIG. In particular, in the embodiment of the device 1 shown in FIG. 4, the movement of the substrates can be controlled independently of one another.
- the substrate holder 71 are arranged independently rotatable on the rotary of the transport device and thus each form independently controllable means for moving the or the substrates attached.
- each of the substrate holder 71 can be independent be rotated by the other holders 71 on the rotary about its axis of rotation 72.
- the substrates can also be rotated about a plurality of axes, namely the axis of the rotary traveler and the axis of rotation of the respective substrate holder.
- a rotation of the substrate about a further axis 73 may also be provided, as is possible, for example, with the substrate holder 71 shown in FIG.
- the embodiment illustrated in FIG. 4 also has a plurality of plasma pulse-induced chemical vapor deposition (PICVD) devices 94, 95, 96, 97, 98, 99 and a plurality of devices 134, 135, 136 for sputter coating the substrates.
- PICVD plasma pulse-induced chemical vapor deposition
- the devices 94, 95, 96, 97, 98, 99 and 134, 135, 136 are in
- Circumferential direction of the rotor 75 of the transport device 7 arranged so that the coating areas 111, 112, 113, 114, 115, 116 and 121, 122, 123 of the devices 94, 95, 96, 97, 98, 99 for plasma pulse-induced chemical vapor deposition (PICVD), or the means 134, 135, 136 are arranged for sputter coating of the substrates along the circumferential direction of the circular transport path.
- the arrangement of the coating areas 111-116 and 121-123 is adapted to the spacing of the substrate holders 71 on the rotary 75, so that in each case a substrate holder with the substrates is located in one of the coating areas and at least one layer of the coating can be deposited.
- the substrates can be arranged sequentially in the coating regions 111, 112, 113, 114, 115, 116 and 121, 122, 123, and then at least one layer of the coating can be deposited there.
- the substrates 5 are removed when they have passed through all the coating areas 111, 112, 113, 114, 115, 116 and 121, 122, 123.
- this variant of the method according to the invention can also be carried out with only a part of the devices 94-99, 134-136.
- the devices for PICVD coating can also be operated in parallel so that identical layers of the coating are simultaneously deposited on all substrates arranged in the coating regions 111-116. Likewise, it is also possible to proceed in the coating areas 121, 122, 123. Then, the substrates 5 do not need to go through all the coating areas, but several substrates are coated in parallel and similar. For such an operation, as many as sputtering devices as shown in FIG. 4, as well as devices for PICVD coating may also be provided.
- One or more sputter coating devices 134, 135, 136 may also include means for electron cyclotron resonance sputtering to deposit, for example, particularly dense layers by ECR sputtering.
- a separate unloading device is also provided in this embodiment in order to enable a continuous production process.
- Fig. 5 shows a variant of the embodiment shown in Fig. 4. Similar to the device for vacuum coating of substrates sketched in FIG. 4, the embodiment illustrated in FIG. 5 also has several devices 94, 95, 96, 97, 98, 99 for plasma pulse-induced chemical vapor deposition and a plurality of devices 134, 135, 136 Sputter coating of the substrates. In contrast to the embodiment shown in FIG. 4, however, the substrate holders 17 with the substrates become along a racetrack-shaped
- the substrates not only along a circular, but also along two linear portions of the transport path to the coating areas 111, 112, 113, 114, 115, 116 and 121, 122, 123 of the devices 94, 95, 96, 97, 98, 99 promoted.
- the devices 94, 95, 97-99 for PICVD coating and the devices 134, 135, 136 for sputter coating are arranged along the linear sections of the transport path, while the device 93 for PICVD coating Coating is located on a circular section.
- Fig. 6 shows parts of a device 1 according to the invention with a further embodiment of a
- the transport device of this embodiment of the invention comprises a transport belt guided on rollers 77, on which the substrates 5 are deposited and conveyed along a linear transport path to the coating regions 111, 121, 112, 122. Accordingly, due to the arrangement as shown in Fig. 6, the conveyor belt 76 constitutes a means for linear movement of the substrates 5.
- the PICVD coating means 94, 95 and the means 134, 135 are above the conveyor 76 along the linear transport path in this embodiment arranged.
- other forms of transport paths such as linear and curved, such as circular sections can be realized with a conveyor belt.
- barriers 21 are additionally barriers 21 as delimitation of the coating regions.
- the barriers 21 can serve, for example, for maintaining a pressure gradient between the coating areas and / or for electromagnetic shielding. Such barriers 21 may also be present in the other embodiments of devices 1 according to the invention, as shown for example in FIGS. 1 to 5.
- Fig. 7 shows a first embodiment of a substrate 5 coated according to the invention.
- the substrate 5 has two opposite sides 51, 52, of which the side 51 has been provided with a coating 6 by vacuum deposition.
- the coating 6 comprises two layers 61, 62, of which one of the layers with PICVD coating and the other layer was applied by sputtering.
- the sputtered layer can also be nitrated or oxidized by introducing nitrogen and / or oxygen into the vacuum chamber or even in a nitrogen-containing or oxygen-containing plasma during or after a sputter coating.
- both the layer 61 and the layer 62 may be deposited by PICVD coating.
- the lower layer 61 may be a metallic layer that has been deposited by sputtering.
- the layer 62 can then serve as a barrier coating to protect the metallic layer from oxidation and deposited by means of PICVD.
- Suitable for this purpose is, for example, a silicon oxide layer which can be produced using a process gas containing hexamethyldisiloxane (HMDSO).
- HMDSO hexamethyldisiloxane
- a substrate having a metallic sputtered layer and a PICVD barrier coating may serve as a lamp reflector.
- Such a SiC 2 layer may also serve as an anti-scratch coating.
- the sputtered layer 61 can also be nitrided or oxidized with the device according to the invention, for example, before the barrier or anti-scratch layer 62 is applied.
- the layer in the coating region of the device for PICVD coating in an oxygen and / or nitrogen-containing plasma can be nitrided. It has been found that, in particular with thin layers, it is possible to achieve nitration or oxidation by introducing oxygen and / or nitrogen even without ignition of a plasma. For thicker layers, the process of sputtering and nitriding or oxidizing can also be repeated several times.
- a nitrided layer 61 such as a nitrided titanium layer, may serve to provide a decorative gold effect.
- the sputtered layer 61 may also be a magnetic or magnetizable layer, which is then covered by a PICVD-deposited barrier layer 62.
- Such coated substrates 5 may be about magnetic media.
- One of the layers 61, 62 may also be, for example, a sputtered layer containing zirconium and / or niobium and / or tantalum.
- Applications for oxide layers of these elements are, for example, coatings with optical functionality due to the high refractive indices of the oxides.
- plastics such as Makrolon® (PMMA) or PP, PC can also be used as substrate 5. It often lends itself, before sputtering a primer layer, for example in
- FIG. 8 shows a PDA or palm-computer 80.
- the display of the PDA 80 comprises a display disk 81 with one or more substrates 5 coated according to the invention.
- the display disk 81 serves not only to display but also to input information, similar to a touch screen , For this purpose, such a disk usually has transparent conductive layers.
- the problem is that the optical properties of the display panel, such as its transparency through the input with the pen and a scratching caused thereby over time can be adversely affected.
- sputtered conductive layers with anti-scratch layers can be used with the invention. and antireflection layers are combined to permanently preserve the optical properties of such a display panel 81.
- FIG. 9 shows a cross-section through an embodiment of a display panel 81 coated according to the invention with two substrates 53, 54, each with multilayer coatings 6, as can be used in particular as a display panel for a PDA or a touchscreen.
- the display screen 81 comprises two substrates 53, 54, both of which are coated according to the invention. Both substrates have on both sides anti-reflection coatings 602 in the form of multilayer alternating layers deposited according to the invention in order to improve the light transmission and the reduction of interfering reflections.
- the multilayer antireflection layers may be formed, for example, as silicon oxide / titanium oxide alternating layers.
- the process gas composition is changed during the PICVD coating, whereby titanium chloride (TiCl4) can be used as process gas constituents for the silicon oxide layers HMDSO and for the one or more titanium oxide layers.
- TiCl4 titanium chloride
- Such a multi-layered alternating layer can also be used advantageously as a multilayer interference layer for other applications, such as for an optical layer
- an adhesion promoter layer 600 is deposited by means of PICVD and thereon an indium tin oxide layer (ITO layer) 601 by sputtering.
- ITO layer indium tin oxide layer
- the two substrates 53, 54 are for producing a display screen 81 with the indium-tin oxide layers 601 facing each other with a small distance apart.
- a spacer layer 604 may be present between the substrates 53, 54.
- the anti-scratching layer 603 and / or the adhesion promoter layer 600 can also advantageously be deposited as layers with a composition which varies gradually with respect to the layer, ie as gradient layers, in order to improve the adhesion of the layers to one another. This can be achieved in the PICVD coating in a simple manner, for example by continuously changing the composition of the process gas.
- an additional adhesion promoter layer may be deposited on the anti-reflective layer 602.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004036170A DE102004036170B4 (de) | 2004-07-26 | 2004-07-26 | Vakuumbeschichtungsanlage und Verfahren zur Vakuumbeschichtung und deren Verwendung |
PCT/EP2005/007418 WO2006010451A2 (de) | 2004-07-26 | 2005-07-08 | Vakuumbeschichtungsanlage und verfahren zur vakuumbeschichtung |
Publications (1)
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EP1771600A2 true EP1771600A2 (de) | 2007-04-11 |
Family
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EP05773105A Withdrawn EP1771600A2 (de) | 2004-07-26 | 2005-07-08 | Vakuumbeschichtungsanlage und verfahren zur vakuumbeschichtung |
Country Status (5)
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US (1) | US20080210550A1 (de) |
EP (1) | EP1771600A2 (de) |
JP (1) | JP5224810B2 (de) |
DE (1) | DE102004036170B4 (de) |
WO (1) | WO2006010451A2 (de) |
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- 2005-07-08 JP JP2007522952A patent/JP5224810B2/ja not_active Expired - Fee Related
- 2005-07-08 US US11/572,255 patent/US20080210550A1/en not_active Abandoned
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CN111370265B (zh) * | 2020-04-10 | 2022-02-01 | 常州天利智能控制股份有限公司 | 一种接触器结构 |
Also Published As
Publication number | Publication date |
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DE102004036170B4 (de) | 2007-10-11 |
JP5224810B2 (ja) | 2013-07-03 |
JP2008507629A (ja) | 2008-03-13 |
WO2006010451A3 (de) | 2006-04-20 |
US20080210550A1 (en) | 2008-09-04 |
WO2006010451A2 (de) | 2006-02-02 |
DE102004036170A1 (de) | 2006-03-23 |
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