Cleanroom Reports

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Revision as of 17:14, 28 May 2010 by 128.111.239.192 (Talk)

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  • List of etch and deposit rate for cleanroom tools. Each file includes the recipe being used and the calibrated etch rate.
  • Please update yours if you run any calibration so that everyone can keep track of them.


Dry Etch
Etched material Equipment Substrate Recipe Latest etch rate Latest update date Latest update by Calib. file Note
Si ICP#2 SOI Bowers si etch # 127 drop from 4nm/s to 3nm/s APR 27, 2010 Hui-Wen ICP#2 si etch rate  
Cured SU8 (260 C for 30 min) ICP#2 SOI Bowers SiOxVert etch # 101 ~111 nm/min MAY 27, 2010 Geza  


Wet Etch
Etched material Solution Mask Latest etch rate Latest update date Latest update by Calib. file Note
Thermal oxide BHF PR or dielectric ~100nm/min        
PECVD oxide BHF PR or dielectric ~225nm/min        
PECVD SiN BHF   ~30-50nm/min   Jon P.    
PECVD SiN HF   ~500nm/min   Geza   PR does not survive as a mask
Cured SU8 (260 C for 30 min) Piranha (150mL H2SO4 + 50mL H2O2)   ~1 um/s (v. fast) MAY 27, 2010 Geza   Piranha does not attack SiN or Gold, suspect heavy undercut


Dielectric Deposit
Material Equipment Latest deposit rate Latest update date Latest update by Calib. file Note
SiN PECVD          
SiO2 PECVD          
Ta2O5 Ebeam #2 1A/sec   Hui-Wen   AR coating