Patent ID: 6875468
Filing Date: 2005-04-05
Classification: C23C,H01L,Y02E,Y02P

Abstract:
1. Method for treating and/or coating a surface of an object by contact with a gas, comprising the steps of: directing the gas into a coating chamber comprising a first longitudinal boundary panel, a base panel, a second longitudinal boundary panel comprising the surface of the object which is substantially parallel to the first longitudinal boundary panel, and a top panel, the first and second longitudinal boundary panels being oriented at an angle α from vertical, causing the gas to flow in the chamber in the form of a convection current which flows along the first longitudinal boundary panel by gravity, and in a substantially laminar flow along the surface of the object, heating the gas along the first longitudinal boundary panel and/or the base panel, and withdrawing a portion of the gas which flows along the surface of the object from the chamber, and recycling a portion of the gas which flows along the surface of the object within the chamber.