[3dem] Carbon evaporator for SPA

Marion Jasnin marion.jasnin at helmholtz-munich.de
Thu Sep 14 06:08:45 PDT 2023 

Dear Rachel, Eugene and Artemis,

Many thanks for your valuable input too.

The choice is then between the Q150V ES Plus, CCU-010 and the Cressington Turbo Carbon Coater 208.

Thanks again!
Cheers,
Marion

________________________________
From: 3dem <3dem-bounces at ncmir.ucsd.edu> on behalf of Artemis Kosta <akosta at imm.cnrs.fr>
Sent: 14 September 2023 14:10
To: Eugene Pichkur <eugene.pichkur at gmail.com>; Jasnin, Marion <jasnin at biochem.mpg.de>
Cc: 3dem at ncmir.ucsd.edu <3dem at ncmir.ucsd.edu>
Subject: Re: [3dem] Carbon evaporator for SPA

We have a Cressington Turbo Carbon Coater 208 Carbon and we are very
happy also.
You can combine it with a glow discharge module also.

Leica EM ACE600 didn't work nicely during the demo and I think the
consumables were quite expensive comparing to the carbon rods for
Cressington.

Best regards
Artemis Kosta

Le 14/09/2023 à 14:00, Eugene Pichkur a écrit :
> Long story short, high vacuum is necessary for fine grains, so a
> turbo/diffusion pump is a must have.
>
> Leica EM ACE600 is not a reliable machine, we have several problems with
> it, especially with the thickness monitor. I know several other labs
> where people are also not happy with it for similar reasons.
> Quorum Q150V is a simple and nice machine, I had no problems with it in
> several labs and used it for thin carbon film deposition, that was
> successfully used for SPA work (EMD-10655). I would go with the Q150V ES
> Plus version just to be able to deposit films onto the surface of
> samples for SEM. But I haven't managed to get the same quality of the
> film as in Quantifoil+2nm grids (these things are very-very thin and
> nice) but that totally depends on your skills.
> On paper the Cressington Turbo Carbon Coater 208 Carbon looks fine too,
> I used it once and the result was ok.
>
> An ultimate machine would be an R&D class deposition system with the
> e-beam gold evaporation, but the price is eye-watering.
>
> Best,
> Eugene
>
> On Thu, Sep 14, 2023 at 12:44 PM Jasnin, Marion <jasnin at biochem.mpg.de
> <mailto:jasnin at biochem.mpg.de>> wrote:
>
>     Dear all,
>
>     we are in the process of buying a carbon evaporator for producing
>     additional 5-15nm support films in SPA. Our experience in making
>     carbon films is based on older machines that are no longer
>     available. So far, we got two quotes more on the high-end side of
>     the instrument spectrum but considering the good quality films we
>     were able to produce with the old machines we are wondering if such
>     an investment is necessary for SPA:
>
>     Leica EM ACE600 Carbon Thread Coater
>     * Carbon thread evaporation
>     * Oil free UHV pump system with turbomolecular pump
>     * Quartz crystal thickness measurement
>     * Sample stage rotation
>
>     Quorum Q150V E Plus
>     * Carbon rod evaporation
>     * Oil free UHV pump system with turbomolecular pump
>     * Quartz crystal thickness measurement
>     * Sample stage rotation
>
>     Much cheaper options like the Leica EM ACE200 exist. We would
>     appreciate some advice on how important expensive features like
>     ultra high vacuum or sample stage rotation really are for SPA.
>     Hints which instrument you are successfully using for this
>     application would also be very helpful.
>
>     Thank you,
>     Cheers,
>     Marion
>
>
>     --
>     Marion Jasnin
>     Principal Investigator
>     Helmholtz Pioneer Campus
>     Helmholtz Munich
>     Ingolstädter Landstraße 1
>     85764 Neuherberg near Munich
>     Germany
>     Phone: +49 (0)89 3187 43896
>     marion.jasnin at helmholtz-munich.de
>     <mailto:marion.jasnin at helmholtz-munich.de>
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