Best way to eliminate tensile stresses is increase your substrate temperature. I am not sure what is good for WO3 for thick ITO on 250 C to 300 C is needed. ...
Hi Everybody, Could you kindly let me know which etching agent is good for revealing the microstructure of Plasma nitriding surface? I am doing plasma...
I am interested in depositing a PVD silver film stack on glass substrates. What are the the best material choices and what combination stack is needed to...
Can anyone provide information on hard coatings that are used to extend the life of molds that are used to form aspherical glass lenses? In addition, is...
Hi The problem of coating mould for glass prodcution was discussed a few monthd ago and most of the answers (some from own experience in this application) have...
Vasco Teixeira
vasco@...
Feb 3, 2005 10:07 am
1560
I used to represent a company in Maine (USA) that did excellent work for the Compact Disk and Laser Disk industries. These molds are for injection molding of...
Dear All, We are in need of a diffusion pump . The Pumping speed is 32000 L/s. The supplier should be capable to instal the pump in Indian Atomic Research ...
Xavier palatty
vacuumcal@...
Feb 4, 2005 9:23 am
1564
Hi noname, e.g. ITO is used in multilayer stacks with Ag. Contact Dr. Fahland (FEP Dresden). http://www.fep.fhg.de/englisch/index.php He works a lot with such...
3% nital and Marble's reagent seem to give good results. See Figs. 6 and 7 in the paper given in this link: ...
Antti S Korhonen
asko@...
Feb 4, 2005 12:21 pm
1566
50%HCl+25%HNO3+25%H2O solution: by dripping a drop to cover the surface until some bubbles come out (need about 10-20 seconds), reveal grain structure and...
Sun Yong (A/Prof )
ASYSun@...
Feb 5, 2005 3:21 pm
1567
Hi, Our company produce vacuum coating systems for nanocomposite PVD coatings on dies and moulds. Please find in attached file some information concerning this...
Andrew V. Fed
dextronresearch@...
Feb 5, 2005 3:21 pm
1568
Thank you for your request regarding a diffusion pump. Thelargest we carry is Leybold DF12000. Masud Naraghi Torr International, Inc. 12 Columbus St. New...
Masud Naraghi
masud.naraghi@...
Feb 5, 2005 3:22 pm
1569
Is price a consideration? If so, there are 4 used HS-32's at this site: http://stores.ebay.com/Axton-Automation ... No virus found in this outgoing message. ...
It depends on what effect you are wanting as to what materials you use in the stack. The usual optical materials are common such as silica & titania but...
Charles A Bishop
cabishopconsulting@...
Feb 5, 2005 3:23 pm
1571
One could also try Northeast Coating in Kennebunk Maine, same city as TiGold. Dean...
Dean-Plaisted
DEAN@...
Feb 7, 2005 3:09 pm
1572
Dear Friends, Concerning coatings on glass mould, I remember previous notice about the advantages of Niobium compounds. We applied a coat of Niobium oxyde on ...
Luiz Roberto Martins ...
miranda@...
Feb 7, 2005 3:10 pm
1573
A small word of advice. It has been our experience that export of diffusion pumps 20" and larger in size requires an export license....
Dear all, My name is Gema Rojo. We use a sputtering magnetron system for the metallization of allumina (Al2O3) substrates. The metallization layers are: TaN +...
Rojo Martínez, Gema
grojo@...
Feb 9, 2005 3:33 pm
1575
Hello, I didn't get the attachments, but I've had similar problems. I had to sputter-etch the substrates for a significant time before deposition. Also, I had...
Art Hochberg
ahoch@...
Feb 10, 2005 12:28 pm
1576
Gema Rojo, I am certainly no expert on gold metallization of alumina, but I do have the experience that deposition of ~ 1 micrometer of dense, amorphous Al2O3...
... Is the gold electroplated? If so I would suspect the gold electroplate additives. Regards, Don Mattox -- ____________________________________ Donald M....
SVC
donmattox@...
Feb 10, 2005 12:29 pm
1578
First, I would make sure your substrates are clean. If you clean them in a detergent and a good rinse, you should probably dry them in a clean oven before...
Hello: The attachments didn’t come through. Unless the ceramic has been glazed Alumina is porous and must degassed for a long period prior to deposition or...
Dear Mr. Mattox, Thank you very much for your answer Yes, it is gold electroplated? But the problems appear not with all the different layers but only with the...
Rojo Martínez, Gema
grojo@...
Feb 10, 2005 1:47 pm
1581
Dear Gema Rojo, From your letter isn't clear are the alumina substrates monocrystalline or polycrystalline, what is their ultimate roughness, substrate...
... Regards, Don ... -- ____________________________________ Donald M. Mattox Technical Director Society of Vacuum Coaters 71 Pinon Hill Place NE Albuquerque,...
SVC
donmattox@...
Feb 10, 2005 5:11 pm
1583
Dear Mr. Mattox, What you told me is very interesting. I have never heard about this problem before. Do you have any literature on it? What do you mean by...
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