Patent ID: 11873559
Assignee: NIPPON KORNMEYER CARBON GROUP GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 2:
3. A plasma boat for receiving wafers (1) with partial attenuation of a plasma deposition, comprising:
a plurality of boat plates (15) arranged parallel and at a distance from one another, which are provided with
wafer receptacles (16) for upright reception of the wafers (1), which respectively comprise
a lower frame element (3) and
holding arms (10) protruding from the lower frame element (3) with reception elements (11) oriented inward
which respectively enclose circumferential edges of the wafers (1), in order to hold the wafers (1) securely during transport and during a deposition process in a coating chamber,

the boat plates (15) being mechanically connected to one another by electrically insulating spacers (2),
wherein the boat plates (15) are alternatingly electrically conductively connected to a first contact and to a second contact,
the first contact being connected to a first voltage potential,
the second contact being connected to a second voltage potential, and
the first voltage potential and the second voltage potential being different,

wherein an attenuation element (12) is in each case arranged between neighboring boat plates (15) while being electrically insulated from them,
wherein each of the attenuation elements (12) comprises a lower horizontal bar (4) spanning a width of the plasma boat and vertical bars (13) extending upwardly from the lower horizontal bar (4),
wherein the vertical bars (13) of the attenuation elements (12) are aligned with the holding arms (10) of the wafer receptacles (16).