Plasma enhanced chemical vapor deposition (PECVD) method for forming microelectronic layer with enhanced film thickness uniformity

摘要

A method for forming a microelectronic layer. There is first provided a substrate. There is then formed over the substrate the microelectronic layer while employing a plasma enhanced chemical vapor deposition (PECVD) method employing a source material gas and a carrier gas, wherein there is employed a sufficiently low plasma power, a sufficiently low source material gas:carrier gas flow rate ratio and a sufficiently high carrier gas atomic mass such that the microelectronic layer is formed with enhanced film thickness uniformity. The method may be employed for forming ion implant screen layers, such as silicon oxide ion implant screen layers, with enhanced film thickness uniformity.