Patent ID: 9633823
Date: 2017-04-25
CPC Classifications: C23C,H01J

Claim:
1. A gas delivery system for use in a reactive sputtering chamber, the system comprising: a gas manifold having an inlet port and a plurality of outlet ports, the outlet ports directed in a first direction that will be perpendicular to a substrate when the system is in use the inlet port operatively coupled to the gas supply so as to receive gas at a selected gas pressure and each of the plurality of outlet ports located within the sputtering chamber, the inlet port in fluid communication with each of the plurality of outlet ports via paths of at least substantially equal conductance; and a collimator port in fluid communication with one of the outlet ports, wherein the collimator port is angled in a non-parallel orientation with respect to the one of the outlet ports so that a lens end of an optical probe when received in the collimator port is exposed to gas flowing to the outlet port to which it is in fluid communication, the optical probe operatively coupled to a plasma emission monitor.