[3dem] Carbon evaporator for SPA

[Artemis Kosta]

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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-- 
Artemis Kosta
Service de microscopie, RdC BatN

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