Re: Gold-PLated PCBs?

On Fri, 23 Feb 2007 10:07:49 +0000, me wrote:
Robert Baer wrote:

Gold looks sexy, but can cause rather expensive problems.

Assuming no cost constraints (customer paying thousands
of dollars for the design, deliverables are ten small PWBs),
no Rohs requirement, and a normal office environment, which
would you choose? Gold over nickel over copper? Some sort
of exotic alloy for the solder? Or good old copper traces
and 63/47 solder?

The only gold plating I've ever seen on a PCB has been edge
connectors. Of course, they plug into sockets with gold-plated
contacts. They're usually gold over nickel over copper, but
the rest of the board is usually tinned and has solder mask.

Cheers!
Rich



.

Relevant Pages

  • Re: Gold plating the entire PCB
    ... makes a nice chemically stable layer on top of the copper. ... cost more than the small amount of gold involved. ... gold that gets absorbed into the solder joint. ... EVERY PCB situation is ...
    (sci.electronics.design)
  • Re: Gold-PLated PCBs?
    ... Gold over nickel over copper? ... of exotic alloy for the solder? ... The only gold plating I've ever seen on a PCB has been edge ...
    (sci.electronics.design)
  • Re: Gold-PLated PCBs?
    ... of dollars for the design, deliverables are ten small PWBs), ... Gold over nickel over copper? ... of exotic alloy for the solder? ... The only gold plating I've ever seen on a PCB has been edge ...
    (sci.electronics.design)
  • Re: Gold-PLated PCBs?
    ... Or good old copper traces and 63/47 solder? ... For contact fingers *only* then gold may be considered (gold over nickel over copper). ...
    (sci.electronics.design)
  • >>>> SOLDER COPPER <<<<
    ... How To Solder Copper Pipe ... How To Silver Solder Copper Pipe ... Time To Solder Copper Fittings ...
    (sci.fractals)