Last week Jeff wrote;

[ I need to implement ink marking on nickel and gold surfaces for IC 
[ components. Can anyone advise me on,
[
[ a.  Type of ink (for pad-mark)
[ b.  Surface pre-treatment process
[
[ that would ensure that the ink would meet the MIL-std mark permanancy test 
[ requirements ? Appreciate your expert advise !
[
[ Thanks
[
[ Jeff-MH Tan
[ Snr Process Engineer
[ [log in to unmask]


We mark PB's and ID-plates with Hysol M-0-N (ink + catalyst A).
Marking is done by hand (pen) and machanical (pad).

The ink is iaw MIL-I-43553 (Epoxy based) and permanent acc. to MIL-STD-130. 

By my knowledge, no special pre-treatment of the surface is necessary.

Try contacting Hysol Div., Dexter Corp. Industries (Adress on the Net?)
for the proper data.


Good luck!

Ivo


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 Ivo de Rooij                         Manufacturing Process Engineer SMT/THT
                   
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 Fokker Elmo BV (Fokker Aviation)                         [log in to unmask]

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