Hi Eric, Sounds like your materials are getting too hot or you're trying to deposit too fast. Check your water cooling, water conductivity, beam power, sweep...
Guanghai, You may want to get in touch with the folks at Paratronix. They have many years of experience in Parylene coatings. All their contact information can...
Hi there! I am a new member of the forum. For now, looks me a very nice forum. congratulations! Well, i am posting, because I work in R&D of solar cells and i...
Guanghai There are two ways you can create nodules A. The pressure is too high B. You have not plasma cleaned the substrate Regards Angelo Dr. Angelo Yializis ...
Angelo Yializis
ayializis@...
Jul 2, 2008 2:12 pm
4741
Dear Colleagues, For years, our lab has used MKS "Baratron" diaphram manometers to measure gas pressure during reactive cathodic arc deposition -- specifically...
Call Galco Electronics 972 222 8484 Marion Shafer [Non-text portions of this message have been removed]...
Galco123@...
Jul 3, 2008 11:44 am
4743
Hi Nelson, May be by "pyrolytic method" you're meaning Spray Pyrolysis (SP), even if CVD (Chemical Vapor Deposition) is also a "pyrolytic method". Well, the...
Dear Siamak Golshahi The darkness of films is due to the lack of oxygen. try to introduce oxygen during the deposition or make annealing temperature in air...
Hazem M. Ali
hazem95@...
Jul 3, 2008 11:46 am
4745
Siamak, You probably need to add some O2 into the chamber to make stoichimetric ZnO. Dale E. Morton Denton Vacuum 1259 N. Church St. Moorestown, NJ 08057 ...
Dale Morton
dmorton@...
Jul 3, 2008 11:46 am
4746
I don't know your application. parylene basically work as conformal insulation for small elctrical/electronic pcomponents or as sterilization coating for...
Dear Nelson In fact, for industrial production over large area glass panels you need to check pros and cons of different technology. It depends onthe...
Dear M.Alonso Prieto, The EB evaporation is a preferable technique to evaporate Pt, because Pt creates alloys with refractory metals. The recommended liners...
Dear colleagues I would like to invite you to participate in the NET Symposium and to help me by forwarding this announcement to your colleagues. Please see...
Dear all, I have a trouble with cryo pumps... There are two APD 500 mm cryo pumps pumping down a big vacuum chamber. Since last week we see a lot of moisture...
Dr. Angelo Yializis, Thank you for your response! Could you please shed some light about the possible composition of the nodules? Do you have some analysis...
Dear you can get it from saes getters the web site is http://www.saesgetters.com/ http://www.saesgetters.com/default.aspx?idPage=161 ... -- With best regards ...
Greetings, Seem that there is a load in the pump, transferring thermal energy to the can (outer container) causing it to sweat (condensate water from the...
There is nothing to do with charcoal - the 15 K array charcoal is only pumping H2, He , Ne, etc To tell you what happens, I need to know if the pumps are...
Angel
angel@...
Jul 12, 2008 12:22 am
4759
Greetings Vladimir, There is another possibility for the can to sweat and that is from a mechanical thermal short between the 80K radiation shield and the...
Hello Vladimir, I do not believe that the problem is with the charcoal array. The most common cause for this symptom with a cryopump is a "thermal short ...
Hello Mike, I thought about it. I am a little bit confused, because that problem has appeared simultaneously on two pumps. Each pump has its own compressor and...
The nodules are made of Parylene polymer Regards Angelo Dr. Angelo Yializis Sigma Technologies International Tucson, Arizona 1 5205758013 www.sigmalabs.com...
Angelo Yializis
ayializis@...
Jul 13, 2008 11:02 am
4764
Can you give me the regeneration parameters? 1. Ultimate pressure during roughing 2. Rate of Raise with roughing valve closed 3. Time to...
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