<div dir="ltr">At NCSU, we established a standard thickness deposition (Approx 250 nm) and established a value for that run. Every precious metal run less than that standard is charged a minimum value. Thicker depositions are charged a prorated amount. We weigh the target before and after every users deposition, to basically track the average value of the standard deposition, but only charge more if it gets close to double the average. Our minimum value was determined over time, and is based on the targets cost/or the replenishment cost. We tell the users before changing the rates, but that way we can handle large swings in the raw metal pricing. <div><br></div><div>Bill Kiether</div><div>NCSU Nanofabrication Facility</div><div><a href="http://www.ncsu.edu">www.ncsu.edu</a><br><div><br></div><div>Bill</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 4, 2020 at 4:58 PM Chang, Long <<a href="mailto:lvchang@central.uh.edu">lvchang@central.uh.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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Hi All,
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<div>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?</div>
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<div>Thanks,<br>
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Long</div>
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