公开(公告)号：US20170200591A1

公开(公告)日：2017-07-13

申请号：US15404457

申请日：2017-01-12

Applicant: MKS Instruments, Inc.

Inventor： Gordon Hill ,  Scott Benedict ,  Kevin Wenzel

IPC: H01J37/32 ,  F16K51/02 ,  F16K15/02 ,  F16K1/22 ,  F16K3/06

CPC classification number: H01J37/32862 ,  F16K1/22 ,  F16K3/06 ,  F16K15/026 ,  F16K51/02 ,  H01J37/32348 ,  H01J37/32568 ,  H01J37/32844 ,  H01J37/32963 ,  Y02C20/30

Abstract: A vacuum pumping line plasma source is provided. The plasma source includes a body defining a generally cylindrical interior volume extending along a central longitudinal axis. The body has an input port for coupling to an input pumping line, an output port for coupling to an output pumping line, and an interior surface disposed about the generally cylindrical interior volume. The plasma source also includes a supply electrode disposed adjacent to a return electrode, and a barrier dielectric member, a least a portion of which is positioned between the supply electrode and the return electrode. The plasma source further includes a dielectric barrier discharge structure formed from the supply electrode, the return electrode, and the barrier dielectric member. The dielectric barrier discharge structure is adapted to generate a plasma in the generally cylindrical interior volume.