Invention Grant
US09536836B2 MIS (Metal-Insulator-Semiconductor) contact structures for semiconductor devices 有权
用于半导体器件的MIS(金属 - 绝缘体 - 半导体)接触结构

MIS (Metal-Insulator-Semiconductor) contact structures for semiconductor devices
Abstract:
An MIS contact structure comprises a layer of semiconductor material, a layer of insulating material having a contact opening formed therein, a layer of contact insulating material having substantially vertically oriented portions and a substantially horizontally oriented portion, the vertically oriented portions of the layer of contact insulating material contacting a portion, but not all, of the sidewalls of the contact opening and the horizontally oriented portion of the layer of contact insulating material contacting the semiconductor layer. A conductive material is positioned on the layer of contact insulating material within the contact opening, the conductive material layer having vertically oriented portions and a horizontally oriented portion and a conductive contact positioned in the contact opening that contacts the uppermost surfaces of the conductive material layer and the layer of contact insulating material.
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