Patent ID: 11946137
Assignee: ASM IP HOLDING B.V.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  H | IPC B  C

Claim 17:
18. A fixture arrangement for determining runout and wobble of a susceptor assembly, comprising:
a fixture as recited in claim 1, wherein the first sensor is a first non-contact sensor, wherein the second sensor is a second non-contact sensor, wherein the first sensor comprises a first laser displacement sensor, wherein the second sensor comprises a second laser displacement sensor; and
a susceptor assembly slidably seated in the turntable and rotatable therein about the rotation axis relative to the base, the susceptor assembly comprising:
a shaft with a lower end and an upper end, the lower end of the shaft slidably received in the turntable, the upper end of the shaft arranged between the second sensor and the turntable;
a spider arranged along the rotation axis and located axially between the second sensor and the turntable, the spider fixed to the upper end of the shaft; and
a susceptor arranged along the rotation axis and axially offset from the turntable, the susceptor fixed to the upper end of the shaft by the spider, the susceptor radially overlapped by the first sensor, and the susceptor axially overlapped by the second sensor.