发明名称 Method for producing a gate structure for an MOS transistor
摘要 In a method for producing a gate structure for a MOS transistor, first, a layer sequence of oxide layer, auxiliary layer and masking layer is generated on a substrate, wherein the auxiliary layer and the masking layer are patterned to determine an edge separating an area of the oxide layer covered by these layers from an exposed area thereof. Afterwards, an oxidation is performed to generate an oxide ramp in the area of the edge. Then, the auxiliary layer is partly removed to generate a hollow space of predetermined length between the oxide layer and the masking layer. A gate electrode material is introduced into the hollow space for generating a gate electrode.
申请公布号 US6887764(B2) 申请公布日期 2005.05.03
申请号 US20040821251 申请日期 2004.04.08
申请人 INFINEON TECHNOLOGIES AG 发明人 HERZUM CHRISTIAN;MUELLER KARLHEINZ
分类号 H01L21/28;H01L29/423;H01L29/51;(IPC1-7):H01L21/336;H01L21/425 主分类号 H01L21/28
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