Specific Process Knowledge/Characterization/Sample preparation: Difference between revisions
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* A simplified list of necessary steps is given below. | * A simplified list of necessary steps is given below. | ||
* Please follow the safety and working rules of the individual lab the work is done in and consider the safety instructions given in [2]. | * Please follow the safety and working rules of the individual lab the work is done in and consider the safety instructions given in [[http://www.nature.com/nprot/journal/v5/n3/full/nprot.2009.234.html 2]]. | ||
* There is a dedicated lab for work with PDMS at DTU Nanotech. | * There is a dedicated lab for work with PDMS at DTU Nanotech. | ||
* Please be aware that it is not allowed to work with PDMS in its uncured state inside the cleanroom. The list of approved chemicals inside the cleanroom still holds. | * Please be aware that it is not allowed to work with PDMS in its uncured state inside the cleanroom. The list of approved chemicals inside the cleanroom still holds. | ||
* Details on Danchip’s experience with PDMS as a casting material may be found in [3] (please cite!). A detailed description for PDMS casting can be found in [2] and practical information is given in [4]. | * Details on Danchip’s experience with PDMS as a casting material may be found in [[http://www.sciencedirect.com/science/article/pii/S0167931714005322 3]] (please cite!). A detailed description for PDMS casting can be found in [[http://www.nature.com/nprot/journal/v5/n3/full/nprot.2009.234.html 2]] and practical information is given in [[http://www.elveflow.com/microfluidic-tutorials/soft-lithography-reviews-and-tutorials/introduction-in-soft-lithography/pdms-softlithography-replication/ 4]]. | ||
* The most important steps for obtaining high quality casts are the thorough mixing of the two components of the PDMS Kit (Sylgard 184, Dow Corning) and the sufficient outgassing of the polymer prior and after pouring the polymer into the mould. The house vacuum may be too weak. For special demands, try to get hold of a separate pump like a HiCube Classic from Pfeiffer Vacuum [4] (there is one around at DTU Photonics or Danchip). | * The most important steps for obtaining high quality casts are the thorough mixing of the two components of the PDMS Kit (Sylgard 184, Dow Corning) and the sufficient outgassing of the polymer prior and after pouring the polymer into the mould. The house vacuum may be too weak. For special demands, try to get hold of a separate pump like a HiCube Classic from Pfeiffer Vacuum [4] (there is one around at DTU Photonics or Danchip). | ||
* The application of an anti-stiction coating, like FDTS, is necessary. It may be applied inside the cleanroom by the MVD. Contact the respective person. | * The application of an anti-stiction coating, like FDTS, is necessary. It may be applied inside the cleanroom by the MVD. Contact the respective person. | ||
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[2] [http://www.nature.com/nprot/journal/v5/n3/full/nprot.2009.234.html Soft lithography for micro- and nanoscale patterning] | [2] [http://www.nature.com/nprot/journal/v5/n3/full/nprot.2009.234.html Soft lithography for micro- and nanoscale patterning] | ||
[3] [http://www. | [3] [http://www.sciencedirect.com/science/article/pii/S0167931714005322 Three-dimensional nanometrology of microstructures by replica molding and large-range atomic force microscopy] | ||
[4] [http://www.sciencedirect.com/science/article/pii/S0167931708004656 Research on the cast molding process for high quality PDMS molds] | [4] [http://www.elveflow.com/microfluidic-tutorials/soft-lithography-reviews-and-tutorials/introduction-in-soft-lithography/pdms-softlithography-replication/ How to do PDMS lithography replication from a SU-8 mold?] | ||
[5] [http://www.sciencedirect.com/science/article/pii/S0167931708004656 Research on the cast molding process for high quality PDMS molds] | |||