There is a method developed by Quake's group at Stanford where they mix
the pdms components in different ratios for each layer to bond (for
example base:curing agent 15:1 on one layer and 5:1 on another later)
and then put them in contact. That's the basic idea, the details can be
found at their website and in their papers:
http://thebigone.stanford.edu/foundry/msl.htm

-Joe

mukul jain wrote:
> hi ,
> I need suggestion or help regd the bonding of pdms to pdms using pdms
> , is
> it possible successfuly..? if yes , then what should be the thickness of
> patterend pdms layers and what should be curing codition ( 60 deg. for 30
> min.?)? or RTV cana lso be used , if yes then what r conditions for
> curing ,
> same as pdms? any other alternative to bond pdms except oxygen plasma
> exposure..?