| 摘要 |
A sputtering target assembly and its manufacturing method are provided for sputtering ceramic material on a substrate. The sputtering target assembly comprises a backing tube having a central portion, a first end and a second end; at least one cylindrical sputtering target member comprising a first ceramic material; and at least one collar comprising a second ceramic material different than the first ceramic material. The cylindrical sputtering target member is coupled to the backing tube at the central portion, and the collar is coupled to the backing tube at an area between one of the first and second ends and the cylindrical sputtering target member. In one embodiment, the sputtering rate of the collar is less than or equal to the sputtering rate of the cylindrical sputtering target member.
|
