INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login

HANDLE


PASSWORD
Remember Me
Forgot Password?

Come Join Us!

  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

E-mail*
Handle

Password
Verify P'word
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Partner With Us!

"Best Of Breed" Forums Add Stickiness To Your Site
Partner Button
(Download This Button Today!)

Member Feedback

"...Just a quick note to say, "THANKS!" for these forums...The site is very well layed out and easy to use. Thanks for bringing us together - we need each other."

Geography

Where in the world do Eng-Tips members come from?

 Electoplating copper or tin or nickel to NiChrome

toolaholic (Mechanical)
23 Feb 01 19:38
I would like to find out what procedures are in use to apply a flash electroplated finish of copper, tin or nickel to a nickel-chromium electrical resistance alloy. I'm told that this requires extremely harsh activation chemistry. What type of chemistry?

Henry Ford said "If you need a tool and do not buy it, you will pay for it anyway"

Check Out Our Whitepaper Library. Click Here.
Helpful Member!SethN (Chemical)
21 Aug 01 16:52
toolaholic
There is a relatively new method called direct metalization which seeds a cunductive polymer to the hole to carry the electroplating current. This replaces the classical platinum seeding method.
toolaholic (Mechanical)
24 Aug 01 8:48
Hi SethN
Thanks for the reference. Direct Metallization is new to me. Can you suggest a place to go for more process data? Also, you mention a hole. What did I miss? Are you referring to a site on the cathode's topology where bonding will occur?

toolaholic

Henry Ford said "If you need a tool and do not buy it, you will pay for it anyway"

Helpful Member!SethN (Chemical)
24 Aug 01 11:01
toolaholic
I may have pointed you in the wrong direction, my apologies. Direct metalization is a process in printed circuit board fabrication. The technology may have other applications however. For an overview see:
http://www.electrochemicals.com/tech1.htm#dm

Seth Normyle
Process Engineer

Start A New Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Promoting, selling, recruiting and student posting
are not allowed in the forums.
Posting Policies

LINK TO THIS FORUM!
(Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum)
TITLE: Electronic material engineering Forum at Eng-Tips
URL: http://www.eng-tips.com/threadminder.cfm?pid=112
DESCRIPTION: Electronic material engineering technical support forum and mutual help system for engineering professionals. Selling and recruiting forbidden.