Patent ID: 6843852
Filing Date: 2005-01-18
Classification: C23C

Abstract:
1. An apparatus for electroless spray deposition of a metal layer on a substrate, comprising: a processing chamber to hold at least one substrate on which the metal layer is to be deposited, the processing chamber including at least one section movable between an open position to allow the at least one substrate to be introduced into and removed from the processing chamber and a closed position to seal the processing chamber to allow for pressurization of the processing chamber; an inlet to provide pressurizing gas to the processing chamber; an exhaust line to exhaust pressurizing gas from the processing chamber; a source of electroless plating solution; a sprayer provided within the processing chamber and connected to the source of electroless plating solution to spray the electroless plating solution onto the at least one substrate; a drain provided in the processing chamber to drain the electroless plating solution from the processing chamber; and a pressure regulator within the processing chamber to regulate pressure within the processing chamber, the pressure regulator including a shutter provided in the exhaust line and a valve provided in the drain.