The heat treatment makes a huge difference. After plasma treatment I use
a hotplate at 85C for an hour or so and it works every time (I don't
even bother cleaning the glass any more). Without it I only ever get
very patchy bonding at best.
For glass to glass you may also consider techniques involving dilute HF
and pressure. I have never this but believe surface roughness is crucial.



ÉÛ½¨²¨ wrote:
> hello guys:
> I havn't done experiments about bonding glass to glass,but I have some
> experience about PDMS bonding to glass.
> I think that after oxygen plasm treatment you should put them into
> oven at
> about 80C for nearly half an hour.It can irreversibly bond.You can try
> it.