Patent ID: 8574412

Claim:
A magnetron sputtering device comprising: a main body; an external holder positioned on the outside of the main body; and a magnet mounting system comprising a first annular member and a first driving device mounted on the external holder; wherein the first annular member is positioned in the main body and connected to the first driving device, and the first driving device is configured for moving the first annular member along an axis of the first annular member; the magnetron sputtering device further comprises a second annular member and a second driving device, the second annular member coaxially encases the first annular member, the second driving device is mounted on the external holder and connected to the second annular member, and the second driving device is configured for moving the second annular member along the axis of the first annular member; the magnet mounting system further comprises a plurality of magnets, the magnets are received in the first and second annular members, the polarities of neighbored magnets received in the same annular member are opposite.