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Team:EPF-Lausanne/Protocols/PDMS two layer device fabrication
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== Method == | == Method == | ||
| - | + | # Place [[Team:EPF-Lausanne/Protocols/Master microfabrication for PDMS replica molding |molds]] into a TMCS vapor chamber | |
| - | + | # Control layer mixture: 20g Base + 4g Curing agent | |
| - | + | # Mix for 1 minute, degas for 2 minutes (standard protocol) | |
| - | + | # Pour onto control layer mold and place mold in vacuum chamber | |
| - | + | # Flow layer mixture: 20g Base + 1g Curing agent | |
| - | + | # Mix for 1 minute and degas for 2 minutes (standard protocol) | |
| - | + | # Spin coat onto flow layer at 2200-2400rpm for 35secs | |
| - | + | # Remove control layer mold from vacuum chamber, making sure no bubbles are left on the surface (remove with a toothpick if you see some ) | |
| - | + | # Place the control and flow layer in a 80C convection oven and incubate for 30 minutes (timing is critical here!) | |
| - | + | # Remove casts from oven, cut out control layer, punch holes, and align to flow layer | |
| - | + | # Put aligned device back into 80C oven and incubate for at least 90 minutes (and here you can increase the backing time) | |
| - | + | # Remove devices from oven and punch flow layer holes | |
{{:Team:EPF-Lausanne/Templates/Footer}} | {{:Team:EPF-Lausanne/Templates/Footer}} | ||
Revision as of 07:36, 20 September 2011
PDMS two layer device fabrication
Back to protocols.made on 16.05.2011
Materials
- flow and control layer molds
- Sylgard 184 silicone elastomer kit: Base part and a Curing agent
- TMCS
Method
- Place molds into a TMCS vapor chamber
- Control layer mixture: 20g Base + 4g Curing agent
- Mix for 1 minute, degas for 2 minutes (standard protocol)
- Pour onto control layer mold and place mold in vacuum chamber
- Flow layer mixture: 20g Base + 1g Curing agent
- Mix for 1 minute and degas for 2 minutes (standard protocol)
- Spin coat onto flow layer at 2200-2400rpm for 35secs
- Remove control layer mold from vacuum chamber, making sure no bubbles are left on the surface (remove with a toothpick if you see some )
- Place the control and flow layer in a 80C convection oven and incubate for 30 minutes (timing is critical here!)
- Remove casts from oven, cut out control layer, punch holes, and align to flow layer
- Put aligned device back into 80C oven and incubate for at least 90 minutes (and here you can increase the backing time)
- Remove devices from oven and punch flow layer holes
