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Electroless plating of ruthenium or iridium





1999

Q. Does anybody have any information, ideas or leads on electroless Iridium Plating. I have been told it can be done, but how successfully?

Phil Garrett
- UK



"Electroless Plating"
by Mallory & Hajdu
from Abe Books
or

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1999

A. I am not sure about plating Electroless Iridium, but electrolytic Iridium plating is possible.

Chris Helwig
- Valencia, California USA



A. Hi Phil. Please see letter 4279 for Iridium Electroplating (as opposed to electroless plating).

I do not find reference to electroless iridium plating either in Mallory & Hajdu.
or in Metal Finishing Information Services databases and doubt that it is available.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey




December 22, 2008

Q. Hello. I do research on superconducting electronic devices and am curious about the possibility of using electroless plating to remove the native oxide on patterned aluminum on a sapphire substrate and then cover the surface with a non-oxidizing platinum group element. In particular I'm interested in either ruthenium or iridium because both are also superconductors.

Could anyone provide me with information on vendors that sell such plating solutions or reference information on such a process or even let me know if this is possible? Thank you.

Vitaley Zaretskey
graduate student - College Park, Maryland



December 23, 2008

A. Hi, Vitaley. Technic specializes in precious metal plating worldwide, so they would certainly be my first resource to investigate for such plating solutions. Electrolytic plating would be easier; please see letter 22092 for a discussion of ruthenium electroplating if interested. Good luck.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey




Need info on Electroless deposition of Ruthenium

2000

Q. Hello,

I am a graduate student in the department of Chemistry at the University of North Texas. I am working on a proposal and wanted some technical guidance.

Is electroless deposition of Ruthenium on SiO2 possible? If so, what would be the required conditions. THANKS.

Thomas Ponnuswamy
- DENTON, Texas , USA



2000

A. Try Chemical Vapour Deposition or Plasma Vapour Deposition - if you can find a source of pure ruthenium!

trevor crichton
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK



November 2013

A. Hi Thomas. Electroless Plating: Fundamentals & Applications by Mallory & Hajdu has a chapter on electroless plating of platinum group metals, including a couple of pages on electroless plating of ruthenium from a Ru-nitrosylammine complex in combination with hydrazine, largely based on a Japanese patent by Torikai, Kawami, and Takenaka:

electroless ruthenium

It sounds difficult but possible. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


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