[labnetwork] Ni evaporation

[Bernard Alamariu]

Hello Nava,

You must use a crucible.
Even the Ni melt does not stick to the hearth, the Cu from the hearth 
will massively diffuse
into the Ni melt and it will end on the wafers.

Thanks, Bernard


The
On 3/23/15 10:03 AM, Henry Taylor wrote:
> Hello Nava,
>
> In my lab we do not use a crucible.  We put the Ni pellets directly in 
> the hearth.  The Ni melts into a ball.  It does not stick to the hearth.
>
> Best,
> Henry Taylor
> Senior Hardware Engineer
> NNF at NCSU
>
> On Mon, Mar 23, 2015 at 5:30 AM, Nava Ariel- Sternberg 
> <anava at tauex.tau.ac.il <mailto:anava at tauex.tau.ac.il>> wrote:
>
>     Hi all,
>
>     We've came across some issues with Ni e-beam evaporation and
>     thought of consulting the network:
>
>     Which crucible are you using for Ni e-beam evaporation? We've
>     tried Al2O3 and Vitreous carbon, both recommended by the
>     material/crucible suppliers.
>
>     Any tips with respect to melting the material or the evaporation
>     process itself?
>
>     Thanks,
>
>     Nava
>
>     Nava Ariel-Sternberg, Ph.D.
>
>     Tel-Aviv University Center for Nanoscience and Nanotechnology,
>     Managing Director
>
>     MNCF Manager
>
>     Phone: 03-640-5619
>
>     Mobile: 054-9984959
>
>     Email: anava at tauex.tau.ac.il <mailto:anava at tauex.tau.ac.il>
>
>
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