Patent ID: 9117857
Filing Date: 2015-08-25
Classification: H01J,H01L

Abstract:
1. A ceiling electrode plate which is supported to be suspended from an electrode support including a temperature adjusting mechanism, wherein a cooling plate is provided between the ceiling electrode plate and the electrode support, the ceiling electrode plate having a plurality of first gas holes and the cooling plate having a plurality of second gas holes; a first heat-transfer sheet is coated on a contact surface of the ceiling electrode plate which is located between the ceiling electrode plate and the cooling plate by using a masking material to provide a plurality of openings corresponding to the first gas holes for the first heat-transfer sheet, the first heat-transfer sheet forming a single unitary heat-transfer sheet, wherein the first heat-transfer sheet is not coated on a predetermined area around each of the first gas holes, and wherein the opening, each first gas hole and each second gas hole are communicated with one another to provide a labyrinth-shaped space; and a parting agent is coated on a contact surface of the cooling plate which is located between the cooling plate and the first heat-transfer sheet.