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solvent_clean_sop [2023/01/18 19:39] – created bdincausolvent_clean_sop [2023/01/18 23:15] (current) – bdincau
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 It is very common and often recommended to clean substrates/devices prior to inspection, bonding, functionalization, or other process steps. (Especially for glass and silicon-based work) This is important for minimizing contamination, as well as providing smooth flat surfaces for bonding. It is very common and often recommended to clean substrates/devices prior to inspection, bonding, functionalization, or other process steps. (Especially for glass and silicon-based work) This is important for minimizing contamination, as well as providing smooth flat surfaces for bonding.
  
-A common technique is to rinse the substrate with few solvents in series, specifically:+A common technique is to rinse the substrate with a few solvents in series, specifically:
  
 1. Acetone \\  1. Acetone \\ 
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 3. Water (Optional) \\  3. Water (Optional) \\ 
  
-Each of these solvents serves a different purpose. Acetone is a very strong solvent that will quickly dissolve oils and other non-desirables, however it evaporates very quickly and leaves a residue. IPA displaces the acetone and leaves minimal residue. Water displaces the IPA and evaporates slowly at standard conditions. +Each of these solvents serves a different purpose. Acetone is a very strong solvent that will quickly dissolve oils and other non-desirables, however it evaporates very quickly and leaves a residue. IPA displaces the acetone (better than water) and leaves minimal residue. Water displaces the IPA and evaporates slowly at standard conditions, giving you time to dry your sample without the formation of water spots. 
  
 ** PPE REQUIREMENTS ** ** PPE REQUIREMENTS **
  
-  * All solvent cleaning should be performed in a fume hood with adequate space to work comfortably. \\  +  * All solvent cleaning should be performed in a fume hood with adequate space to work comfortably. 
-  * Wear gloves & safety goggles. A lab coat is recommended. +  * Wear gloves, safety goggles, and a lab coat. 
-  * Use an appropriate holder for your sample, such as wafer tweezers.+  * Use an appropriate holder for your sample, such as wafer tweezers. For small samples, or other difficult-to-hold samples (such as spheres) consider using multiple solvent baths, rather than rinses.
  
 ** Procedure ** ** Procedure **
solvent_clean_sop.1674070754.txt.gz · Last modified: 2023/01/18 19:39 by bdincau