Invention Application
WO2008049019A3 COPPER DEPOSITION FOR FILLING FEATURES IN MANUFACTURE OF MICROELECTRONIC DEVICES 审中-公开
填充微电子器件制造特点的铜沉积

COPPER DEPOSITION FOR FILLING FEATURES IN MANUFACTURE OF MICROELECTRONIC DEVICES
Abstract:
A method for plating copper onto a semiconductor integrated circuit device substrate by forming an initial metal deposit in the feature which has a profile comprising metal on the bottom of the feature and a segment of the sidewalls having essentially no metal thereon, electrolessly depositing copper onto the initial metal deposit to fill the feature with copper. A method for plating copper onto a semiconductor integrated circuit device substrate by forming a deposit comprising a copper wettable metal in the feature, forming a copper-based deposit on the top-field surface, and depositing copper onto the deposit comprising the copper wettable metal to fill the feature with copper.
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