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公开(公告)号:US20050284371A1
公开(公告)日:2005-12-29
申请号:US10881095
申请日:2004-06-29
IPC分类号: C23C16/00 , C23C16/458 , C23C16/509 , H01L21/687
CPC分类号: H01L21/6875 , C23C16/401 , C23C16/455 , C23C16/45565 , C23C16/458 , C23C16/4583 , C23C16/5096
摘要: Improvements in a PECVD chamber to provide better uniformity in film thickness and mechanical strength are described. Less contact surface is provided to the outer edge of the wafer and non-uniform gas distribution occurs through adjustments to the gas distribution plate to provide this uniformity.
摘要翻译: 描述了PECVD室的改进以提供更好的膜厚度和机械强度的均匀性。 较小的接触表面被提供到晶片的外边缘,并且通过调节气体分配板而发生不均匀的气体分布,以提供这种均匀性。