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Dear Ed and community, </div>
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We have a Pelco EasiGlow and a Quorum/EMS Glo-Qube. I use both interchangeably and notice no differences between them. When we got the Glo-Qube, we swapped the oil pump for a roughing pump and one of my colleagues changed the presets for requested vacuum, so
that it would work with the roughing pump. I've never had any issues with the Glo-Qube, and have never had to replace a part in the 6-7yrs it's been in our lab. It has inlets for gas, and a second/separate chamber where you can add materials to functionalize
grids or the surface of interest. We have both mat sci and bio folks who use it and like it. And every user can save the settings they want. I don't think there's an upper limit to the amount of recipes or presets you can save (we have over 10 programs, but
mostly use 1-2, including one to clean AFM targets/cantilevers). </div>
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For the EasiGlow, I replace the oil and oil-mist filter when needed. You can tell because it'll stop glowing. It also has at least 1 inlet for an external gas. We have ours hooked to argon. But mostly operate it at ambient air/gas. You can save up to 4 recipes/programs,
but it's not too difficult to change things when/as needed. Ted Pella's service and help is top-notch. </div>
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I haven't had any experience with them, but in Ithaca there's Harrick Plasma. The Nanoscale Facility here uses them and their users are pretty happy, as it allows them to change current manually (like the Emitech cleaners we used to use at Vandy ... I adored
those). <a href="https://urldefense.com/v3/__https://harrickplasma.com__;!!Mih3wA!GgwI3QfoWN70-ZEHkmH8xZM9zA8amodWGRbMdsB6Nh3fmQmYpnbE05lS2oEDqWuhORnYT3QnKRxMhQFgsUbC$" data-loopstyle="link" id="LPNoLPOWALinkPreview">https://harrickplasma.com</a></div>
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My three cents, </div>
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Mariena</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> 3dem <3dem-bounces@ncmir.ucsd.edu> on behalf of Patricia Grob PhD <pgrob@berkeley.edu><br>
<b>Sent:</b> Wednesday, January 25, 2023 12:51 PM<br>
<b>To:</b> Egelman, Edward H (ehe2n) <egelman@virginia.edu><br>
<b>Cc:</b> 3dem@ncmir.ucsd.edu <3dem@ncmir.ucsd.edu><br>
<b>Subject:</b> Re: [3dem] plasma cleaner</font>
<div> </div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space">Hello Ed,
<div class=""><br class="">
</div>
<div class="">We got a Tergeo EM (PIE Scientific) plasma cleaner when our Solarus went down 4 or 5 years ago and we have been very happy with it. It is more affordable and it has been running without fail or repairs ever since.</div>
<div class=""><br class="">
</div>
<div class="">Patricia</div>
<div class=""><br class="">
<div class="">
<div>_________________________________</div>
<div>Patricia Grob, Ph.D.<br class="">
Research Specialist<br class="">
Nogales Lab<br class="">
HHMI at UC Berkeley<br class="">
Molecular & Cell Biology Department / QB3,<br class="">
Stanley Hall #742<br class="">
University of California, Berkeley<br class="">
Berkeley, CA 94720-3220<br class="">
Phone: (510)666-3335<span class="x_Apple-tab-span" style="white-space:pre"> </span>
Fax: (510)666-3336<br class="">
E.M. suite B307: (510)666-3339<br class="">
URL: <a href="https://urldefense.com/v3/__http://cryoem.berkeley.edu__;!!Mih3wA!C7DcZr7wzSTHKwpZuUfXknBo_VK608jMkHM0LJNxPRO0sFyRNtyFeiQhOVGG_ZYiKbC1QD2tjWmplJUuHY_C$" class="">
cryoem.berkeley.edu</a><br class="">
<a href="mailto:pgrob@berkeley.edu" class="">Email: pgrob@berkeley.edu</a><br class="">
<br class="">
<br class="">
</div>
</div>
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Jan 24, 2023, at 2:43 PM, Christopher Winkler <<a href="mailto:microwink@gmail.com" class="">microwink@gmail.com</a>> wrote:</div>
<br class="x_Apple-interchange-newline">
<div class="">
<div dir="ltr" class="">Hey Ed,
<div class=""><br class="">
</div>
<div class="">We went through a similar cost benefit analysis of plasma cleaners after our Solarus RF board failed. We went with one of the more basic plasma cleaners partly due to budget, partly due to the simplicity of operation of the more basic units, and
partly due to the simplicity of design of the basic units. As you point out, the cost of a "simple" cleaner is 1/4 to 1/3 of the Solarus II. The Solarus was pretty easy to operate and the ability to save recipes is nice, but the more basic plasma cleaners
are even simpler--you basically toggle a switch to start or stop the cleaner. There is no ability to save a recipe on our cleaner but we only had a few saved recipes on our Solarus that were routinely used. It's not hard to adjust time and power on the basic
units. Most importantly for me, the more basic cleaners forego the TMP for a basic dry scroll pump so there are no diaphragm pumps to rebuild or turbo oil bearings to swap, and there's no painful teardown of the system to access the vacuum systems. The poorer
vacuum is fully sufficient to generate a good quality plasma and I've not really seen much of a difference in cleaning performance--the new "simple" model does a good job of cleaning and removing hydrocarbon contamination (we don't use it for glow discharging
or treating grid surfaces, so I can't comment on that). </div>
<div class=""><br class="">
</div>
<div class="">A downside of the basic cleaner is that it only uses one process gas at a time, so you cannot switch between argon and oxygen mixtures or hydrogen like the Solarus. This is not a problem for our application but it's something to consider. </div>
<div class=""><br class="">
</div>
<div class="">Happy to discuss specifics off of the listserv,</div>
<div class="">Chris</div>
</div>
<br class="">
<div class="x_gmail_quote">
<div dir="ltr" class="x_gmail_attr">On Tue, Jan 24, 2023 at 5:17 PM Egelman, Edward H (ehe2n) <<a href="mailto:egelman@virginia.edu" class="">egelman@virginia.edu</a>> wrote:<br class="">
</div>
<blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex">
<div class="x_msg7018277512538944471">
<div lang="EN-US" class="" style="">
<div class="x_m_7018277512538944471WordSection1">
<p class="x_MsoNormal">We have a Gatan Solarus that is failing, and are thinking about replacements. The newer Solarus II is from 5-10 times more expensive than the simplest plasma cleaners out there. Does anyone have any comparisons to justify this very high
price tag?<u class=""></u><u class=""></u></p>
<p class="x_MsoNormal">Thanks,<u class=""></u><u class=""></u></p>
<p class="x_MsoNormal">Ed<u class=""></u><u class=""></u></p>
<p class="x_MsoNormal"><u class=""></u> <u class=""></u></p>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt"><u class=""></u> <u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt"><u class=""></u> <u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">Edward Egelman<u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">Harrison Distinguished Professor,<u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">Department of Biochemistry and Molecular Genetics<u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">Professor of Molecular Physiology and Biological Physics</span><span class="" style="font-size:11pt"><u class=""></u><u class=""></u></span></p>
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">University of Virginia</span><span class="" style="font-size:11pt"><u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">phone: 434-924-8210<u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt">fax: 434-924-5069<u class=""></u><u class=""></u></span></p>
</div>
<div class="">
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt"><a href="mailto:egelman@virginia.edu" target="_blank" class=""><span class="" style="color:blue">egelman@virginia.edu</span></a><u class=""></u><u class=""></u></span></p>
<p class="x_MsoNormal"><span class="" style="font-size:10.5pt"><a href="https://urldefense.com/v3/__https://egelmanlab.org/__;!!Mih3wA!E1FbZMjPylp2E_W95tkmjXBa_SrdglqlKHumjIYttQDrp5j2mFygiYldlXjLxNN29KbT4EBRw_E2__08r2FUsiA$" target="_blank" class=""><span class="" style="color:blue">https://egelmanlab.org/</span></a><u class=""></u><u class=""></u></span></p>
</div>
<p class="x_MsoNormal"><u class=""></u> <u class=""></u></p>
</div>
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