DE102004020511A1 - Rapid electron beam vacuum deposition of substance onto plastic film to make barrier layer, measures thickness optically to control uniformity of deposition - Google Patents
Rapid electron beam vacuum deposition of substance onto plastic film to make barrier layer, measures thickness optically to control uniformity of deposition Download PDFInfo
- Publication number
- DE102004020511A1 DE102004020511A1 DE200410020511 DE102004020511A DE102004020511A1 DE 102004020511 A1 DE102004020511 A1 DE 102004020511A1 DE 200410020511 DE200410020511 DE 200410020511 DE 102004020511 A DE102004020511 A DE 102004020511A DE 102004020511 A1 DE102004020511 A1 DE 102004020511A1
- Authority
- DE
- Germany
- Prior art keywords
- coating material
- layer
- light
- width
- wavelength
- 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.)
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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
- 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
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/564—Means for minimising impurities in the coating chamber such as dust, moisture, residual gases
-
- 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
- C23C14/542—Controlling the film thickness or evaporation rate
- C23C14/545—Controlling the film thickness or evaporation rate using measurement on deposited material
- C23C14/547—Controlling the film thickness or evaporation rate using measurement on deposited material using optical methods
-
- 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
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Patentanspruchs 1 sowie eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 13.The The invention relates to a method according to the preamble of the claim 1 and a device according to the preamble of claim 13.
Gläser, Folien und andere Substrate werden mit dünnen Schichten versehen, um ihnen besondere Eigenschaften zu verleihen. Beispielsweise werden solche Schichten auf Kunststofffolien aufgebracht, um diese gasdicht zu machen.Glasses, foils and other substrates are provided with thin layers to to give them special properties. For example such layers applied to plastic films to make them gas-tight close.
Für das Aufbringen dieser Schichten auf die Substrate sind verschiedene Verfahren bekannt, von denen nur das Aufsputtern und das Aufdampfen erwähnt seien. Das Aufdampfen hat gegenüber dem Sputtern den Vorteil, dass die Schichten mit 10- bis 100-facher Geschwindigkeit aufgebracht werden können.For applying of these layers on the substrates, various methods are known of which only sputtering and vapor deposition are mentioned. The vapor deposition has opposite The advantage of sputtering is that the layers move at 10 to 100 times the speed can be applied.
Es
ist bereits ein Verfahren zum Verdampfen von Materialien mittels
eines Elektronenstrahls bekannt (
Weiterhin ist es bekannt, die Schichtdicke dadurch zu bestimmen, dass die optische Absorption gemessen wird. Bei dickeren und schwach absorbierenden Schichten ist diese Messmethode jedoch nicht einsetzbar, weil Interferenzeffekte ein möglicherweise vorhandenes schwaches Absorptionssignal überlagern (Quality Control and Inline Optical Monitoring for Opaque Film, AIMCAL Fall Conference, October 28, 2003).Farther It is known to determine the layer thickness in that the optical absorption is measured. For thicker and weakly absorbent However, this measurement method can not be used because of interference effects maybe one superimpose existing weak absorption signal (Quality Control and Inline Optical Monitoring for Opaque Film, AIMCAL Fall Conference, October 28, 2003).
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Regelung für ein Beschichtungsverfahren zu schaffen, mit dem es möglich ist, die Dicke von weitgehend absorptionsfreien Beschichtungsmaterialien über die Breite eines Substrats konstant zu halten.Of the The invention is therefore based on the object, a scheme for a coating process to create, with which it is possible is the thickness of largely absorption-free coating materials over the Width of a substrate to keep constant.
Diese Aufgabe wird gemäß den Merkmalen des Patentanspruchs 1 gelöst.These Task is performed according to the characteristics of Patent claim 1 solved.
Die Erfindung betrifft somit ein Verfahren und eine Vorrichtung zur Regelung der Schichtdicke eines Beschichtungsmaterials auf einem in seiner Längsrichtung bewegten Band. Hierbei wird über die Breite des Bands an mehreren Stellen die Dicke der Schicht gemessen und eine Beschichtungsanlage derart geregelt, dass die Dicke der Schicht über die Breite des Bands konstant ist. Die Dickenregelung kann dabei mittels Intensitätsveränderung von Elektronenstrahlen erreicht werden, welche ein Beschichtungsmaterial verdampfen. Es können aber auch mehrere über die Breite des Bands verteilte Verdampferschiffchen individuell so aufgeheizt werden, dass sich eine gleichmäßige Beschichtung über die Breite des Bands ergibt. Mit Hilfe eines zusätzlichen Transmissions-Messgeräts kann auch die Zusammensetzung des Beschichtungsmaterials über die Breite des Bands konstant geregelt werden.The The invention thus relates to a method and a device for Control of the layer thickness of a coating material on a in its longitudinal direction moving tape. This is about the width of the tape at several points measured the thickness of the layer and a coating system regulated such that the thickness of the Layer over the width of the band is constant. The thickness control can do this by means of intensity change be achieved by electron beams, which evaporate a coating material. It can but also several over the width of the tape distributed evaporator boats individually be heated so that a uniform coating across the width of the tape. With the help of an additional transmission measuring device can also the composition of the coating material across the width of the band are constantly controlled.
Der mit der Erfindung erzielte Vorteil besteht insbesondere darin, dass bei einer Beschichtung mittels Elektronenstrahl-Verdampfer der Elektronenstrahl über die Breite eines Substrats derart geregelt werden kann, dass sich über die gesamte Breite dieses Substrats eine gleichmäßige Verteilung des Beschichtungsmaterials ergibt.Of the obtained with the invention advantage is in particular that in a coating by means of electron beam evaporator of the electron beam over the Width of a substrate can be controlled so that over the entire width of this substrate a uniform distribution of the coating material results.
Bei der Messung der Dicke von weitgehend absorptionsfreiem Beschichtungsmaterial wird von der Eigenschaft dielektrischer Schichten Gebrauch gemacht, dass durch Interferenzeffekte im optischen Spektrum Maxima und Minima entstehen, die ein Maß für die optische Schichtdicke darstellen.at the measurement of the thickness of largely absorption-free coating material use is made of the property of dielectric layers, that by interference effects in the optical spectrum maxima and minima arise, which is a measure of the optical Layer thickness represent.
Mit der gemessenen Schichtdicke kann der Beschichtungsprozess gesteuert werden, beispielsweise die Intensität und/oder der Ablenkungswinkel eines Elektronenstrahls, der auf ein zu verdampfendes Material trifft.With the measured layer thickness can be controlled by the coating process For example, the intensity and / or the deflection angle of a Electron beam, which hits a material to be evaporated.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben. Es zeigen:One embodiment The invention is illustrated in the drawings and will be described in more detail below. Show it:
In
der
Die
beiden Kammern
Nicht
dargestellt ist eine magnetische Ablenkeinheit, welche die waagrecht
einfallenden Elektronenstrahlen
Die
Beschichtung der Kunststofffolie
Ein
nicht dargestellter Antriebsmotor treibt die Aufwickelwalze
Dadurch,
dass das Beschichtungsmaterial
Statt
eines Tiegels
In
der
Die
Auswerteschaltung
Anstelle
von Elektronenstrahlen können auch
mehrere hintereinander angeordnete Verdampferschiffchen vorgesehen
sein, die einzeln aufheizbar sind, sodass entlang der Breite der
Folie
Zusätzlich zu
den Reflexionsmessgeräten
Das
Reflexionsmesssystem führt
eine automatische spektrale Positionsbestimmung der Extremwerte
durch. Die spektralen Positionen der Extremwerte dienen als Stellgröße für die Steuerung der
Elektronenstrahlen. Mittels einer zusätzlichen Transmissionsmessung,
für welche
das Transmissionsmessgerät
Die
In
der
An
der Oberfläche
Die
gegenseitige Auslöschung
der Wellen
Um
feststellen zu können,
bei welcher Wellenlänge
die Amplitude des reflektierten Lichts ein Minimum hat, wird die
Wellenlänge
des auf die Schicht
Wenn – wie in
In
der
Die
In
der
Die
Claims (15)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020511 DE102004020511A1 (en) | 2004-04-26 | 2004-04-26 | Rapid electron beam vacuum deposition of substance onto plastic film to make barrier layer, measures thickness optically to control uniformity of deposition |
TW93118419A TW200535264A (en) | 2004-04-26 | 2004-06-25 | Method and arrangement for the regulation of the layer thickness of a coating material on a web moved in its longitudinal direction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020511 DE102004020511A1 (en) | 2004-04-26 | 2004-04-26 | Rapid electron beam vacuum deposition of substance onto plastic film to make barrier layer, measures thickness optically to control uniformity of deposition |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004020511A1 true DE102004020511A1 (en) | 2005-11-10 |
Family
ID=35140173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410020511 Withdrawn DE102004020511A1 (en) | 2004-04-26 | 2004-04-26 | Rapid electron beam vacuum deposition of substance onto plastic film to make barrier layer, measures thickness optically to control uniformity of deposition |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102004020511A1 (en) |
TW (1) | TW200535264A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013101269A1 (en) * | 2013-02-08 | 2014-08-14 | Von Ardenne Anlagentechnik Gmbh | Arrangement, useful for measuring coating properties during magnetron sputtering in strip and foil coating system, includes gas passage segments, and gauge with measuring heads, where number of heads corresponds to number of segments |
-
2004
- 2004-04-26 DE DE200410020511 patent/DE102004020511A1/en not_active Withdrawn
- 2004-06-25 TW TW93118419A patent/TW200535264A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013101269A1 (en) * | 2013-02-08 | 2014-08-14 | Von Ardenne Anlagentechnik Gmbh | Arrangement, useful for measuring coating properties during magnetron sputtering in strip and foil coating system, includes gas passage segments, and gauge with measuring heads, where number of heads corresponds to number of segments |
DE102013101269B4 (en) | 2013-02-08 | 2019-12-05 | VON ARDENNE Asset GmbH & Co. KG | Arrangement and method for measuring layer properties in vacuum coating systems |
Also Published As
Publication number | Publication date |
---|---|
TW200535264A (en) | 2005-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: APPLIED MATERIALS GMBH & CO. KG, 63755 ALZENAU, DE |
|
8139 | Disposal/non-payment of the annual fee |