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US08187948B2 Hybrid gap-fill approach for STI formation 有权
混合间隙填充方法用于STI形成

Hybrid gap-fill approach for STI formation
摘要:
A method of forming a shallow trench isolation region is provided. The method includes providing a semiconductor substrate comprising a top surface; forming an opening extending from the top surface into the semiconductor substrate; performing a conformal deposition method to fill a dielectric material into the opening; performing a first treatment on the dielectric material, wherein the first treatment provides an energy high enough for breaking bonds in the dielectric material; and performing a steam anneal on the dielectric material.
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