发明名称 |
Method for forming bottle trenches by liquid phase oxide deposition |
摘要 |
Method for forming bottle trenches by liquid phase oxide deposition. The method includes the steps of providing a substrate having a pad layer formed thereon, and a trench formed in a predetermined position; forming a masking layer at the bottom part of the trench; using liquid phase deposition (LPD) to form an LPD oxide layer on the sidewalls of the trench; removing the masking layer to expose the bottom part of the trench; subjecting the LPD oxide layer to annealing; and etching the bottom part of the trench not covered by the LPD oxide layer to form a bottle trench.
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申请公布号 |
US6767786(B1) |
申请公布日期 |
2004.07.27 |
申请号 |
US20030413229 |
申请日期 |
2003.04.14 |
申请人 |
NANYA TECHNOLOGY CORPORATION |
发明人 |
LIN SHIAN-JYH;CHEN MENG-HUNG;LEE CHUNG-YUAN |
分类号 |
H01L21/334;H01L21/8242;(IPC1-7):H01L21/824 |
主分类号 |
H01L21/334 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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