Process information for low-stress nitride (LSN2) with very high uniformity (<1.5%), and somewhat higher stress than standard LSN (LSN1), deposited on LPCVD Nitride (Tube 2).

Recipe parameters

Recipe nameVNIT.002
Temperature L/C/S (°C)830/835/840
DCS flow (sccm)60
NH₃ flow (sccm)15
Process pressure (mTorr)150

Results

Deposition time (HH:MM:SS)00:56:00
Mean thickness (nm)202.4
Uniformity, SUP (%)1.1
Deposition rate (nm/min)3.6
Refractive index (λ = 633 nm)2.15
Stress (MPa)230 (tensile)