Invention Grant
US08524566B2 Methods for the fabrication of integrated circuits including back-etching of raised conductive structures 有权
用于制造包括凸起导电结构的背蚀刻的集成电路的方法

Methods for the fabrication of integrated circuits including back-etching of raised conductive structures
Abstract:
Embodiments of a method for fabricating an integrated circuit are provided. In one embodiment, the method includes producing a partially-completed semiconductor device including a substrate, source/drain (S/D) regions, a channel region between the S/D regions, and a gate stack over the channel region. At least one raised electrically-conductive structure is formed over at least one of the S/D regions and separated from the gate stack by a lateral gap. The raised electrically-conductive structure is then back-etched to increase the width of the lateral gap and reduce the parasitic fringing capacitance between the raised electrically-conductive structure and the gate stack during operation of the completed semiconductor device.
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