For at least 30 years or more, a special ink has been used in the electronics industry for labeling transistors and ICs. That ink cannot be dissolved off the part, and it seems to not change color even at 230C or so. What type of ink is that, and what are the sources; eg: can anyone provide stocking disties, brand(s) part numbers, etc? Thanks.
Robert Baer Inscribed thus:
Hi Robert, Are you sure that its ink and not Laser etched !
--
Best Regards:
Baron.
Ink, stamped on...
nge
Try searching on acid etch ink. That is what was used on aerospace parts when I retired.
Dan
I would guess pigmented epoxy.
Lots of companies just go with the laser etched surface, don't bother = filling in. Sometimes, a smear of heatsink goo helps to reveal the = markings.
Tim
--=20 Deep Friar: a very philosophical monk. Website:
change=20
It's more like paint than ink. The older units had light markings on dark, the pigment was aluminum (and it comes off with a little NaOH solution).
New ICs have fine markings with no color contrast, probably laser etched.
Many (maybe most) devices, these days are laser etched.
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
nge
Sounds like you want an epoxy-based ink. They also make them in high-temp.
Try a search on ThomasNet.com
-mpm
Lasers were not used in the 1970 to (maybe) 1990 region. In any case, i need to use ink as laser marking is too damn expensive.
Yes...read: WHAT KIND, SOURCE(s)...
Hmm..not what i was looking for; just a "plain" ink - perhaps a special epoxy ink?? OOOOh; that GooGulls better. Thanks.
Correct, laser marking is rather common now.
Yes, i do need a hi-temp ink, as well as a hi-temp substrate maybe not unlike paper. Will try GooGull first, then TomNet next. Thanks.
Markem has made marking equipment for decades. And inks.
Turns out that the GooGull search using suggested terms, was more than sufficient.
Will keep that in mind, if the sources i found do not work.
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