Patent ID: 9330887
Filing Date: 2016-05-03
CPC Classification: H01J

Claim Text:
1. A plasma reactor for processing a workpiece, comprising: a processing chamber enclosure comprising a chamber side wall and a chamber ceiling, and a workpiece holder within said processing chamber enclosure; a conductive RF enclosure overlying said chamber ceiling and comprising a RF enclosure side wall coupled to an overlying conductive top cyclindrical side wall that supports and overlying conductive cover; a floating support plate within and separate from said RF enclosure side wall; plural RF plasma power applicators suspended from said floating support plate in a space below said floating support plate and above said chamber ceiling; plural actuators and fixed with respect to said RF enclosure side wall and spaced about said RF enclosure side wall at periodic intervals, each one of said plural actuators comprising: an axially movable arm, a motor coupled to said axially movable arm and a rotatable joint having two joint ends, one of said joints ends being connected to said axially movable arm and the other of said joint ends being connected to a portion of said floating support plate, whereby said floating support plate is supported at respective plural locations by the rotatable joints of respective one of said plural actuators.