Mr. Kok: You might like to refer to Denton Vacuum's website and download the paper where Dale Morton and I used pulse sputtering to deposit a number of ...
Howdy Edmund Scientific, Barrington, NJ, USA used to sell a white coating for integrating spheres. Barium sulfate base I think. If they do not sell it, I am...
Bob Anglemier
banglemier@...
Nov 3, 2006 6:18 pm
3484
Dear Yin, What is the pulses frequency of your power supply? We deposited successfilly SiO2 and Si3N4 transparent films with optical quality using our unipolar...
... -- ____________________________________ Donald M. Mattox Technical Director Society of Vacuum Coaters 71 Pinon Hill Place NE Albuquerque, NM 87122-1914 ...
SVC
donmattox@...
Nov 3, 2006 6:19 pm
3486
Hi all, I'm looking for some information on adhesion test methods for coatings based on scratching across an interface. Anybody has come across any of these...
Yin, Pulsing should be at least 40KHz and preferably 50 to 70KHz. Arcing may be partly caused by the high voltage that unoxidized silicon sputters at. Try ...
Hi everyone I have 5" dia, 0.25" thick Tungsten (W) target, which is supposed to be 99.999%. I would like to find out the purity of the target without...
Hi All, For good vacuum practice, should we put weldment on vacuum side or atmosphere side? I heard it should be on vacuum side to avoid virtual leak. But...
hi All, We want to evaporate Gd with Electron gun, but when we heat that in vacuum chamber with a very low power (1 kw) EB vacuum pressur increase soon. ...
Nader Sobhkhiz
sobhkhizy@...
Nov 4, 2006 11:29 am
3491
How about measuring composition using EDX/XPS/Auger? Intrinsic error in most surface/composition measurements is about 10% and often, I would say, more. For...
bvrao1@...
Nov 4, 2006 11:29 am
3492
Hello Eltee I know a group that has developed omnidirectional mirror for 1550nm. I dont know for what range you are looking for? Contact Frank Placido at...
Dear Pramod, You can try x-ray diffraction (XRD) or energy dispersion spectroscopy (EDS). Both will provide a scan of the elements presents based upon their...
George Wityak
gwityak@...
Nov 4, 2006 11:34 am
3494
We have laser based process to coat wire with oxides. Please contact me at following address: rd@... Thanks. RD Vispute...
Dear Miguel, when I was developping sratch resistant coatings for Polycarbonate glazing in my former company, we used the Cross Cut Test according to DIN EN...
Dear Pramod, I suggest first to consider the dimensional restrictions. If you have access to a 'full wafer scale' analysis tool (SIMS, AES, XRF or XPS) in your...
Dear Yin Nan Kok, For deposition of SiO2, I would prefer rf sputtering. Pure rf from an SiO2 target for highest film quality or reactive rf from a doped Si ...
Hi all, I have been constantly facing problems with the plasma in our microwave-PECVD reactor. The color of the plasma changes after first 10 minutes of the...
You are right, it should be on vacuum side to avoid virtual leaks like from contamination, trapped volumes, porous, etc which always exist in the weldment...
Dear Henry, It is right, that the weldings must be made on vacuum side in every case, when it is possible. It prevents oxide and narrow holes formation, which...
Hi all We design a vacuum plasma implementation set. we have arc in plasma collector power supply(p= 5e-5 torr) we use -2500 v power supply and -12kv...
Nader Sobhkhiz
sobhkhizy@...
Nov 14, 2006 1:01 pm
3502
Harish, You'd neglected to say what the offending color is and what related influences to the finshed products are. Such information would give clues. You...
Dear All, I want to deposit a green colour coating over steel substrate by magnetron sputtering. I dispose of Cr-Ni target, Ti target and Cu target. Can I...
Dear Sathyaharish, the best way to know what happens in your chamber during plasma process is to analyze it by spectral analysis. it is very sensitive and...
Dear MS&T07 participants, Thank you for lending your time and expertise to the MS&T’07 technical program. The Call for Papers was distributed at MS&T’06...
vigase@...
Nov 14, 2006 1:05 pm
3507
Dear All, As you CrN coating process creates large amounts of black dust, specially when one needs to clean the chamber. We are using at the moment 3M masks...
ricardo.camasao@...
Nov 18, 2006 2:42 pm
3508
Dear all, Can any one tell me when is EB gun preffered to SPuttering process for thin film coating....
Dear MST07 participants, Thank you for lending your time and expertise to the MS&T’07 technical program. The Call for Papers was distributed at MS&T’06...
vigase@...
Nov 18, 2006 2:47 pm
3510
Hi John, Thanks for your reply. The plasma was supposed to be green in color. But it changes to white after 5 to 10 minutes of striking the plasma and then it...
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