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公开(公告)号:US06566230B1
公开(公告)日:2003-05-20
申请号:US10032630
申请日:2001-12-27
IPC分类号: H03L2176
CPC分类号: H01L21/76224
摘要: A method for performing trench isolation during semiconductor device fabrication is disclosed. The method includes patterning a hard mask to define active areas and isolations areas on a substrate, and forming spacers along edges of the hard mask. Trenches are then formed in the substrate using the spacers as a mask, thereby increasing the width of the substrate under the active areas and increasing Weff for the device.
摘要翻译: 公开了一种用于在半导体器件制造期间执行沟槽隔离的方法。 该方法包括图案化硬掩模以限定衬底上的有源区和隔离区,以及沿着硬掩模的边缘形成间隔物。 然后使用间隔件作为掩模在衬底中形成沟槽,从而增加衬底在有源区域下的宽度并增加器件的Weff。