[labnetwork] How to charge for sputtering target use

[Fouad Karouta]

Hi Long,

At ANFF-ACT Canberra we charge precious materials in sputter at a fixed
rate of AUD1/nm thickness.
In my opinion charging the weight difference is not the most accurate way
as targets tend to get consumed more in the central part and you have to
change the target once the middle part of the material is fully consumed.
This brings additional cost when buying a new target even though the olad
target can be recycled.
Another factor to consider: in the last six months gold price went up
dramatically so if it happens you need to change targets nowadays the
prices are substantially higher than a year ago.

Regards,
Fouad Karouta

Ex-Manager ANFF ACT Node

Australian National University

ACT 2601, Canberra, Australia



On Sat, Jun 6, 2020 at 1:54 AM Chang, Long <lvchang at central.uh.edu> wrote:

> Hi Everyone,
>
> Thanks for all the input. I have plenty to think about to decide which
> makes sense for us.
>
> Thanks,
> Long
>
> On Jun 5, 2020, at 9:40 AM, Jasper Nijdam <Jasper.Nijdam at georgetown.edu>
> wrote:
>
> Heho,
>
> In GNuLab, users log their deposition thickness (including
> pre-sputtering). They get charged by the Angstrom. I recalculate the price
> every time a new target is installed.
>
> Price/A=(Price of new target-reclaimed value old target) / (#Angstroms
> that came out of the old target).
>
> Hope this helps,
>
> Stay healthy,
>
> Jasper Nijdam
>
> At UHNF, each user owns their own sputtering target. We are currently
>> considering a shared model for expensive targets like Au, Pt, etc. Does
>> anyone have a reasonable way to estimate material usage vs something we can
>> track so that we can charge fairly? What approaches do y’all take to manage
>> how expensive material is shared?
>>
>
> --
> Jasper Nijdam
> Technical Manager GNuLab, Georgetown University
>
>
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