Patent ID: 8562798
Filing Date: 2013-10-22
Classification: C23C,H01J,H01L

Abstract:
1. A physical vapor deposition reactor, comprising: a metal sputter target having a front surface which is to be sputtered and a back surface; a D.C. sputter power source coupled to said metal sputter target; a wafer support pedestal facing said metal sputter target; a movable magnet array adjacent a side of said metal sputter target opposite said wafer support pedestal; a center axle about which said movable magnet array is rotatable, wherein said center axle comprises an axially extending hollow passageway, a solid metal RF feed rod extending through said passageway; said solid metal RF feed rod comprising first and second ends, said solid metal RF feed rod engaged with a center of the back surface of said metal sputter target at said first end at a surface of said target on a side opposite said wafer support pedestal, said solid metal RF feed rod passing through said center axle and being coaxial with and separated from said center axle and having a diameter of at least 0.5 inch, said solid metal RF feed rod having a length extending from said target to a location beyond a side of said magnet array opposite said target; a VHF impedance match circuit coupled to said second end of said solid metal RF feed rod; and a VHF RF power generator coupled to said VHF impedance match circuit.