Patent ID: 6281146
Filing Date: 2001-08-28
Classification: C23C,H01L

Abstract:
A method for forming a microelectronic layer comprising:providing a substrate; andforming 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, andwherein the PECVD method employs: a radio frequency source plasma power of between about 50 to 200 watts at a source radio frequency of 13.56 MHz; a source material gas:carrier gas flow rate ratio of from about 1:100 to 1:300; a carrier gas atomic mass of at least about 30 amu; a reactor chamber pressure of from about 1 to 10 torr; a substrate temperature of from about 350 to 450.degree. C.; and a showerhead spacing of from about 450 to 500 mils.