[labnetwork] experience with Germanium

[J Provine]

there is not much in the way of cross-contamination concern.  Ge will cool
much slower than the metals you mention, and if cool-ed rapidly can
"explode" in the vacuum making a real mess (and using up a lot of your
source).  establish an extra long cool down procedure for the users (5-10
minutes to ramp the temperature down) to avoid this.  then everything
should be fine.

j


On Tue, Jan 14, 2014 at 8:25 AM, Ferraguto, Thomas <Thomas_Ferraguto at uml.edu
> wrote:

>  Colleagues,
>
>
>
> We have a new CHA E-Beam / Thermal evaporator and there has been a some
> interest in depositing Germanium.
>
>
>
> What (if any) are the risks for allowing Germanium deposition in a system
> that does largely gold, titanium, aluminum and nickel?
>
>
>
> Thank you
>
>
>
> Thomas S. Ferraguto
>
> ETIC Nanofabrication Laboratory Director
>
> University of Massachusetts Lowell
>
> 1 University Avenue
>
> Lowell MA 01854-5120
>
> 978-934-1809 land
>
> 617-755-0910 mobile
>
> 978-934-1014 fax
>
>
>
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>
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