Specific Process Knowledge/Thin film deposition/PECVD/Pre-release tests on PECVD4

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Plan for test runs on PECVD4 before release

Test of standard recipes, dep. rate, RI and stress
Recipe Wafer ID Dep. rate [nm/min] RI Unif. [%] Stress Comments SiH4 NH3 N2O N2 B2H6 PH3 Pressure APC Power Load Tune Temp Time
PREDEP s000008 377 nm/min 1.489 ±3.1%     50   1800       650   200LF ~10 ~53 250/300 04:00
LFSIO s000009 92 nm/min 1.480 ±1.9%   Without carrier 12   1420 392     550   60LF ~10 ~53 2250/300 01:15
LFSIO s000011 78 nm/min 1.483 ±2.1%   With carrier 12   1420 392     550   60LF ~10 ~53 2250/300 01:15
HFSiO s000012 64 nm/min 1.477 ±0.5%   with carrier 10   1420 392     900   30HF ~55 ~58 250/300 02:00
LFSiN s000013 43 nm/min 1.983 ±4.4%   with carrier 40 20   1960     550   60LF ~10 ~53 250/300 02:00
HFSiN S000015 12.4 nm/min 2.017 ±1.2%   With carrier 40 55   1960     900   20HF ~56 ~58 250/300 10:00
MFSiN S000016 46.8 nm/min 2.083 ±3.3%   With carrier 40 40   1960     900   20HF 6"/20LF 2" 63/25 33auto/92man 250/300 10:00
LFSIO st s000019         Stress test 1µm - stress wafer no. 1 12   1420 392     550   60LF ~10 ~53 2250/300 13:00
HFSiO st S000020         Stress test 1µm - stress wafer no. 2 10   1420 392     900   30HF ~55 ~58 250/300 16:00
LFSiN st S000021         Stress test 1µm 40 20   1960     550   60LF ~10 ~53 250/300 23:00
HFSiN st S000022         Stress test ~700nm 40 55   1960     900   20HF ~56 ~58 250/300 56:00
MFSiN st           Stress test ~700nm 40 40   1960     900   20HF 6"/20LF 2" 59/0 60auto/59man 250/300 15:00
Standard Waveguide             17   2000       300   700LF ~35 ~40 250/300 40:00
D   D D D D D D D D D D D D D D D D D D
D   D D D D D D D D D D D D D D D D D D

Run-to-Run Reproducibility

Test of LFSiO at different chamber conditions
Recipe Wafer ID Dep. rate [Å/min] RI Unif. [%] Comments SiH4 NH3 N2O N2 B2H6 PH3 Pressure APC Power Load Tune Temp Time
LFSIO         1000Å At 1µm chamber deposition 12   1420 392     550   60LF ~10 ~53 2250/300 01:15
LFSIO         1000Å At 5.9µm chamber deposition 12   1420 392     550   60LF ~10 ~53 2250/300 01:15