Patent ID: 9611539
Date: 2017-04-04
CPC Classifications: C23C,H01J

Claim:
1. A method of processing a substrate in a physical vapor deposition (PVD) chamber, comprising: applying RF power at a VHF frequency to a target comprising a metal disposed in the PVD chamber above the substrate to form a plasma from a plasma-forming gas; sputtering metal atoms from the target using the plasma while maintaining a first pressure in the PVD chamber sufficient to ionize a predominant portion of the sputtered metal atoms; and controlling a plasma sheath voltage between the plasma and the substrate to reduce an ion energy of the sputtered metal atoms to form a metal-containing layer having a crystal orientation that is predominantly a <002> crystal orientation relative to a <100> crystal orientation or to increase an ion energy of the sputtered metal atoms to form a metal-containing layer having a crystal orientation that is predominantly a <100> crystal orientation relative to a <002> crystal orientation.