The Indium Corp. of America's documentation says that indium adheres to
silicon dioxide.
I cut up small pieces of sheet indium, put them on a heavily doped silicon
surface (which of course has native oxide),
and flowed a lot of current through the indium. It melted and adhered well
enough to get an ohmic contact.
Not a direct answer, but maybe it'll help.
    --Kirt Williams, Ph.D.   consultant

----- Original Message -----
From: Yuanbo Zhang 
To: 
Sent: Thursday, September 25, 2003 11:17 AM
Subject: [mems-talk] Does molten Indium wet SiO2 surface?


> Hi all,
>
> I am trying to thermally evaporate ~30nm Indium film onto SiO2
> substrate, then heat it up
>   to the melting temperature of Indium. Does anyone know if Indium wets
> SiO2 surface?
>   If it does NOT wet, how is the adhesion between Indium and SiO2? If it
> does wet, what
> kind of substrate should I use to get a non-wetting contact?
>
> Any suggestions would be greatly appreciated.
>
> Yuanbo Zhang
> Dept. of Physics, Columbia University
> 538 West 120th St., PUPIN 704
> New York, NY 10027
> Phone: (212)8540393
> Fax: (212)8540392
>
>
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