Patent ID: 8293081

Claim:
A physical vapor deposition device for coating a workpiece, comprising: a chamber; a cathode and an opposite anode in the chamber; a target material positioned between the cathode and the anode in the chamber; and a supporting device positioned between the cathode and the anode in the chamber, the supporting device comprising: a rotatable device comprising four symmetrical restricting holes defined therein; a first driving device comprising a first driving body and a first shaft extending from the first driving body to rotate the rotatable device; at least four second driving devices, each second driving device comprising a second driving body and a second shaft extending from the second driving body, and each second shaft comprising a screw thread formed thereon; a hollow supporting plate configured for securing the workpiece; and four supporting poles, each supporting pole comprising a first end with a screw hole defined therein and an opposite second end fastened to the hollow supporting plate; wherein the four second shafts are threaded into the screw holes of the four supporting poles via the four restricting holes, correspondingly, the hollow supporting plate is movably fastened to the rotatable device, and a distance from the hollow supporting plate to the rotatable device is adjusted to align the workpiece with the target material by rotating the second shaft of each second driving device in the screw hole of the corresponding supporting pole when the hollow supporting plate is rotated together with the rotatable device.