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公开(公告)号:US20090065893A1
公开(公告)日:2009-03-12
申请号:US11876489
申请日:2007-10-22
申请人: Chi-Huang Wu , Chien-Jung Yang
发明人: Chi-Huang Wu , Chien-Jung Yang
CPC分类号: H01L29/66621 , H01L27/10876 , H01L29/0653 , H01L29/4236
摘要: A semiconductor device and fabrication method thereof is disclosed. The method includes the steps of providing a substrate with a trench and a stacked layer thereon, performing an epitaxy process to form an epitaxial layer in the trench, conformably depositing an oxide layer on the epitaxial layer, and removing a portion of the oxide layer and the epitaxial layer on the bottom of the trench.
摘要翻译: 公开了一种半导体器件及其制造方法。 该方法包括以下步骤:在其上提供具有沟槽和堆叠层的衬底,执行外延工艺以在沟槽中形成外延层,在外延层上顺应地沉积氧化物层,以及去除一部分氧化物层和 沟槽底部的外延层。