Patent ID: 8778145

Claim:
A sputtering apparatus comprising: a processing chamber in which a body to be processed can be disposed; a cathode to which a target can be attached on a side where the body to be processed is disposed; a magnet apparatus that is located on a side of the cathode opposite to the side where the target is attached and forms a point-cusp magnetic field on a surface of the target; a drive means capable of adjusting a distance between the magnet apparatus and the cathode; a rotation mechanism configured to rotate the magnet apparatus around a center axis of the target; and a control means configured to control the drive means and a power supply to the cathode, storing first information including a first distance between the magnet apparatus and the target which makes a film thickness distribution on the body to be processed be a chevron-shaped pattern in which film thickness is largest near a center of the body to be processed and film thickness gradually decreases toward an end of the body to be processed, and storing second information including a second distance different from the first distance between the magnet apparatus and the target which makes a film thickness distribution on the body to be processed be a valley-shaped pattern in which film thickness is smallest near a center of the body to be processed and film thickness gradually increases toward an end of the body to be processed, wherein the magnet apparatus includes a plurality of magnets distributed and placed in a grid shape on a flat sheet facing the cathode, each magnet has a magnetic pole in a direction perpendicular to the cathode surface and the magnets are arranged so that adjacent magnets have polarities opposite to each other, and the drive means is configured to integrally move the magnet apparatus, and wherein, while the rotation mechanism rotates the magnet apparatus, the control means controls the drive means to perform: a first control, on a basis of the first information, for setting a distance between the magnet apparatus and the target to the first distance and forming a film of the chevron-shaped pattern on the body to be processed by sputtering of the target; and a second control after performing the first control, on a basis of the second information, for setting a distance between the magnet apparatus and the target to the second distance, and forming a film of the valley-shaped pattern on the body to be processed by sputtering of the target, and wherein the valley-shaped pattern when the film is formed in the second distance is a pattern in which a magnitude of film thickness is inverse to that of the chevron-shaped pattern when the film is formed in the first distance in at least a part of the body to be processed.