Patent ID: 6403168
Filing Date: 2002-06-11
Classification: C23C,H05K

Abstract:
Process for depositing metal coatings on polyimide surfaces, the metal coatings adhering to the polyimide surface and being resistant to aqueous alkaline solutions, the process comprising the steps of:a) deposition of a first metal coating on the polyimide surfaces by decomposition of volatile metal compounds by means of a glow discharge process in the presence of a gas mixture containing inert gases and oxygen containing compounds, the inert gases and oxygen containing compounds each having a respective partial pressure, the oxygen content being effective to provide a first metal coating catalytically active for subsequent electroless deposition of a second metal coating on a polyimide surface coated with the first metal coating; b) electroless deposition of a second metal coating on the first metal coating from an acidic or neutral metallizing bath, the bath having a pH.