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公开(公告)号:US20090029522A1
公开(公告)日:2009-01-29
申请号:US11954470
申请日:2007-12-12
申请人: Whee Won Cho , Seung Hee Hong , Suk Joong Kim , Jong Hye Cho
发明人: Whee Won Cho , Seung Hee Hong , Suk Joong Kim , Jong Hye Cho
IPC分类号: H01L21/762
CPC分类号: H01L21/76232 , H01L21/31116
摘要: A method of forming isolation layers of a semiconductor device including forming a first insulating layer on a semiconductor substrate including trenches formed in the semiconductor substrate, substituting a top surface of the first insulating layer with salt, removing the salt to expand a space between sidewalls of the first insulating layer, and forming a second insulating layer on the first insulating layer so that the trenches are gap-filled. Thus, trenches can be easily gap-filled with an insulating material.
摘要翻译: 一种形成半导体器件的隔离层的方法,包括在半导体衬底上形成第一绝缘层,该半导体衬底包括在半导体衬底中形成的沟槽,用盐代替第一绝缘层的顶表面,除去盐以扩大第二绝缘层的侧壁之间的空间 第一绝缘层,并且在第一绝缘层上形成第二绝缘层,使得沟槽间隙填充。 因此,沟槽可以容易地用绝缘材料间隙填充。
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公开(公告)号:US20090004819A1
公开(公告)日:2009-01-01
申请号:US11963906
申请日:2007-12-24
申请人: Whee Won Cho , Eun Soo Kim , Suk Joong Kim
发明人: Whee Won Cho , Eun Soo Kim , Suk Joong Kim
IPC分类号: H01L21/76
CPC分类号: H01L27/115 , H01L27/11521
摘要: In one aspect of the inventive method, a tunnel insulating film, a first conductive layer, and an isolation mask pattern are formed over a semiconductor substrate. The first conductive layer and the tunnel insulating film are patterned along the isolation mask pattern. A trench is formed in the semiconductor substrate. The trench is gap filled with a first insulating film. A polishing process is performed in order to expose the first conductive layer. A height of the first insulating film is lowered. The first conductive layer on the first insulating film is gap-filled with a second insulating film.
摘要翻译: 在本发明方法的一个方面中,在半导体衬底上形成隧道绝缘膜,第一导电层和隔离掩模图案。 第一导电层和隧道绝缘膜沿着隔离掩模图案被图案化。 在半导体衬底中形成沟槽。 沟槽填充有第一绝缘膜。 进行抛光处理以露出第一导电层。 第一绝缘膜的高度降低。 第一绝缘膜上的第一导电层用第二绝缘膜间隙填充。
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