发明名称 Patterned doping of semiconductor substrates using photosensitive monolayers
摘要 A semiconductor device and a method of fabricating a semiconductor device are disclosed. Embodiments of the invention use a photosensitive self-assembled monolayer to pattern the surface of a substrate into hydrophilic and hydrophobic regions, and an aqueous (or alcohol) solution of a dopant compound is deposited on the substrate surface. The dopant compound only adheres on the hydrophilic regions. After deposition, the substrate is coated with a very thin layer of oxide to cap the compounds, and the substrate is annealed at high temperatures to diffuse the dopant atoms into the silicon and to activate the dopant. In one embodiment, the method comprises providing a semiconductor substrate including an oxide surface, patterning said surface into hydrophobic and hydrophilic regions, depositing a compound including a dopant on the substrate, wherein the dopant adheres to the hydrophilic region, and diffusing the dopant into the oxide surface of the substrate.
申请公布号 US8354333(B2) 申请公布日期 2013.01.15
申请号 US20100699552 申请日期 2010.02.03
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION;AFZALI-ARDAKANI ALI;SADANA DEVENDRA K.;SEKARIC LIDIJA 发明人 AFZALI-ARDAKANI ALI;SADANA DEVENDRA K.;SEKARIC LIDIJA
分类号 H01L21/22;H01L21/38 主分类号 H01L21/22
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