Patent ID: 8382967

Claim:
A magnetron sputtering device comprising: a base mounted to a sputtering target; and a plurality of movable magnet assemblies arranged on the base, the lengthwise directions of the movable magnet assemblies being respectively oriented along radial directions from a center of the base, the movable magnet assemblies each comprising: a support mounted to the base, two parallel grooves defined in the support; a plurality of magnets having alternating opposing poles facing the base; a frame; a plurality of holders fixed to the frame and configured for holding the plurality of magnets, each holder comprising two spaced sidewalls each defining an axle hole; two rotatable wheels mounted on each holders, the two grooves configured to receive and guide the two rotatable wheels, the two rotatable wheels connected together by a shaft, and opposite ends of the shaft being rotatably engaged in the axle holes of the sidewalls, respectively; and a driving device to drive the plurality of magnets to slide with respect to the support along the grooves.