Patent ID: 8512526

Claim:
A method of performing physical vapor deposition in a reactor chamber on a workpiece positioned on a workpiece support underlying a metal sputter target, said method comprising: maintaining a workpiece-to-sputter target spacing not exceeding about 7/30 of a diameter of the workpiece; sputtering atoms from said metal sputter target by applying less than 500 Watts of target bias power to said metal sputter target; providing a rotatable magnetron overlying said metal sputter target and having a hollow rotation axle, placing a straight solid RF feed rod of not less than 0.50 inch in diameter through said hollow rotation axle and engaging one end of said solid RF feed rod to a center of said target whereby said axle is coaxial with and surrounds said solid RF feed rod, and rotating said magnetron about said hollow rotation axle; and ionizing the atoms sputtered from said metal sputter target to an ionization fraction in excess of about 50% by applying in excess of a kiloWatt of VHF source power at not less than 60 MHz to said metal sputter target through said straight solid RF feed rod.