Patent ID: 9206503
Filing Date: 2015-12-08
Classification: C23C,H01J

Abstract:
1. A sputtering method using a sputtering device, wherein entire scan region is defined from one side to the other side of a sputtering target, and the sputtering target is scanned with a magnet moving back and forth along the entire scan region multiple times, the method comprising, original scanning step, wherein the entire scan region is divided into N (N≧4, wherein N is an integer) parts from one side to the other side of the sputtering target along with magnet moving direction, and original scan region is defined from the Pth (1≦P≦N/2, wherein p is an integer) part to the (N−P+1)th part as start part and end part respectively, with the magnet scanning back and forth the original scan region at least once; and altered scanning, step, wherein altered scan region is defined from the Qth (1≦Q≦N/2, Q≠P, wherein Q is an integer) part to the (N−Q+1)th part as start part and end part respectively, with the magnet scanning back and forth the altered scan region at least once after the original scanning step, and the altered scanning step is conducted at least once, wherein the magnet does not scan a region outside the original scan region during the original scanning step and the magnet does not scan a region outside the altered scan region during the altered scanning step.