Magnetron sputtering apparatus
First Claim
1. A magnetron sputtering apparatus comprising a sputtering chamber;
- a substrate and target disposed within said sputtering chamber to form a desired space therebetween;
means for applying a voltage between said substrate and target; and
means for producing a magnetic field so that the direction of the magnetic field is inverted on the magnetic symmetry axis within said space.
2 Assignments
0 Petitions
Accused Products
Abstract
There is disclosed a magnetron sputtering apparatus including a sputtering chamber, a substrate and target disposed within the sputtering chamber to form a desired space therebetween, device for applying a voltage between the substrate and target, and device for producing a magnetic field; and the apparatus comprises the magnetic field-producing device adapted to excite a magnetic field so that the direction of the magnetic field may be inverted on the magnetic symmetry axis within the space.
The magnetron sputtering apparatus of the present invention can form metal films having no crack without heating of the substrate and also form a magnetic recording film layer having an increased coercive force perpendicular to the surface of the film.
50 Citations
16 Claims
-
1. A magnetron sputtering apparatus comprising a sputtering chamber;
- a substrate and target disposed within said sputtering chamber to form a desired space therebetween;
means for applying a voltage between said substrate and target; and
means for producing a magnetic field so that the direction of the magnetic field is inverted on the magnetic symmetry axis within said space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
- a substrate and target disposed within said sputtering chamber to form a desired space therebetween;
-
9. A magnetron sputtering apparatus comprising:
-
a sputtering chamber; a substrate and target disposed within said sputtering chamber to form a desired space therebetween; means for applying a voltage between said substrate and target, and means for producing a magnetic field;
said apparatus being characterized in that said magnetic field-producing means is adapted to excite a magnetic field so that the direction of the magnetic field may be inverted on the magnetic symmetry axis within said space;
said magnetic-field producing means includes a combination of permanent magnets which are located on the back of said target;
said combination of permanent magnets includes a first permanent magnet having the south or north pole thereof faced to said target and a plurality of second permanent magnets having substantially the same magnetic property as that of said first permanent magnet, said second permanent magnets being disposed around said first permanent magnet and positioned with the magnet pole opposite to that of said first permanent magnet being faced to said target. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
16. A method for forming a magnetic thin film on the surface of a substrate by magnetron sputtering, said method comprising the steps of:
-
disposing the substrate and target within a sputtering chamber to form a desired space therebetween; supplying a voltage between said substrate and target; and
forming a magnetic field so that the direction of the magnetic field is inverted on the magnetic symmetry axis within said space.
-
Specification