Patent ID: 6303510
Filing Date: 2001-10-16
Classification: H01L

Abstract:
A plasma etch method for forming a patterned layer comprising:providing a substrate;forming over the substrate a blanket microelectronic layer;forming over the blanket microelectronic layer a patterned mask layer;etching, while employing a single first plasma etch method which employs the patterned mask layer as an etch mask layer, the blanket microelectronic layer to form a partially etched blanket microelectronic layer;etching, while employing a single second plasma etch method which employs the patterned mask layer as an etch mask layer, the partially etched blanket microelectronic layer to form a patterned microelectronic layer, where the first plasma etch method employs a higher bias voltage than the second plasma etch method.