Patent ID: 6572744
Filing Date: 2003-06-03
Classification: C23C,G11B,H01J

Abstract:
A physical-vapor deposition apparatus for depositing material from a target onto a substrate, the apparatus comprising:a deposition chamber; a target assembly disposed at one end of the chamber and holding the target from which sputter deposition particles are generated; a substrate holder housed within the chamber at a predetermined distance from the target assembly and substantially facing the target assembly; a physical collimator between the target assembly and the substrate holder for spatially filtering of the angular distribution of sputter deposition particles impinging on the substrate; and a long-throw collimator extending between the target assembly and the physical collimator, the long-throw collimator being adapted to prevent sputter deposition particles falling outside a predetermined angular distribution cone from striking the physical collimator, and acting in combination with the physical collimator to further spatially filter the angular distribution of sputter deposition particles impinging on the substrate.