Method for forming low compressive stress fluorinated ozone/TEOS

Semiconductor device manufacturing: process – Coating of substrate containing semiconductor region or of... – Insulative material deposited upon semiconductive substrate

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438624, 438784, 438783, H01L 2131, H01L 21469

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061211648

ABSTRACT:
A method and apparatus for forming a halogen-doped silicon oxide film, preferably a fluorinated silicon glass (FSG) film, having compressive stress less than about -5.times.10.sup.8 dynes/cm.sup.2. In a specific embodiment, the FSG film is formed by a sub-atmospheric CVD thermal process at a pressure of between about 60-650 torr. The relatively thin film, besides having a low dielectric constant and good gap fill capability, has low compressive stress, and is particularly suitable for use as an intermetal (IMD) layer.

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