Patent ID: 8303786

Claim:
A sputtering apparatus, comprising: a plurality of process chambers; a plurality of independent plasma generation regions formed in each process chamber; each plasma generation region including: a cathode; first and second masks disposed on both sides of the cathode; and a gas supply line disposed along an edge portion of the cathode within the first and second masks to supply reactive gases to the plasma generation region, first and second shielding films disposed between the first mask of a first plasma generation region and the second mask of a second plasma generation region adjacent to the first plasma generation region to prevent reaction gases generated in the plurality of independent plasma generation regions from being flown to an outside by Ar gas flowing between the first and second shielding films; a gas injection unit disposed over the first and second shielding films between the plasma generation regions to allow the Ar gas to be flown in a vertical direction between the first and second shielding films; and a gas suction unit disposed between the plasma generation regions to remove by suction and to exhaust reaction gases generated in the plurality of independent plasma generation regions.