SPUTTER COATING DEVICE AND METHOD OF DEPOSITING A LAYER ON A SUBSTRATE
First Claim
1. A sputter coating device for depositing a layer on a substrate having an organic material layer deposited thereon, the sputter coating device comprising:
- a coating chamber;
a substrate having a surface and an organic material layer deposited thereon;
a rotatable cathode unit arranged in the coating chamber comprising a rotatable target for sputtering particles from the target and a magnet assembly for generating a plasma confinement zone arranged above a surface section of the target;
a scattering zone provided between the surface section of the target and the substrate surface for scattering the sputtered particles; and
means for selectively preventing a portion of the sputtered particles from moving to the substrate surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A sputter coating device comprises a vacuum coating chamber, substrates arranged within the coating chamber, a cylindrical hollow cathode including a rotatable target rotating around a central axis A, and a magnet assembly which is arranged within the hollow cathode such that confining plasma zones are generated in an area above the surface of the target. At least one substrate is to be coated. The substrate has an OLED layer deposited on the substrate surface. An intermediate area is arranged between the surface of the target and a shield that shields particles sputtered from the surface of the target that move in a direction toward the shield. On each side of the shield, passages are provided between the intermediate area and coating area. Through the passage, only sputtered particles that have been scattered in the intermediate area may enter the coating area via the passage, and impinge the OLED layer.
9 Citations
21 Claims
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1. A sputter coating device for depositing a layer on a substrate having an organic material layer deposited thereon, the sputter coating device comprising:
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a coating chamber; a substrate having a surface and an organic material layer deposited thereon; a rotatable cathode unit arranged in the coating chamber comprising a rotatable target for sputtering particles from the target and a magnet assembly for generating a plasma confinement zone arranged above a surface section of the target; a scattering zone provided between the surface section of the target and the substrate surface for scattering the sputtered particles; and means for selectively preventing a portion of the sputtered particles from moving to the substrate surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of depositing a layer on a substrate having an organic material layer deposited thereon, the method comprising the steps of:
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a. Providing a first coating chamber; b. Providing a substrate to be coated in the first coating chamber, the substrate having an organic material layer deposited thereon; c. Providing a first rotatable cathode unit arranged in the first coating chamber comprising a first rotatable target and a first magnet assembly for generating a first plasma confinement zone arranged above a surface section of the first target; d. Providing means for preventing sputtered particles from moving from the surface of the first rotatable target to the substrate surface on a substantially direct path; and e. Sputtering particles from the first rotatable target to form a first layer on the substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification