INK
in [Design]
|
Prev: generator hook up
Next: toroidal core for high current
From: Robert Baer on 19 Jul 2010 03:55 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.
From: Baron on 19 Jul 2010 05:53 Robert Baer Inscribed thus: > 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. Hi Robert, Are you sure that its ink and not Laser etched ! -- Best Regards: Baron.
From: PeterD on 19 Jul 2010 08:18 On Mon, 19 Jul 2010 10:53:30 +0100, Baron <baron.nospam(a)linuxmaniac.nospam.net> wrote: >Robert Baer Inscribed thus: > >> 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. > >Hi Robert, >Are you sure that its ink and not Laser etched ! Ink, stamped on...
From: dcaster on 19 Jul 2010 08:44 On Jul 19, 3:55 am, Robert Baer <robertb...(a)localnet.com> wrote: > 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. > > Thanks. Try searching on acid etch ink. That is what was used on aerospace parts when I retired. Dan
From: Tim Williams on 19 Jul 2010 09:35
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 -- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms "Robert Baer" <robertbaer(a)localnet.com> wrote in message news:erudnVS93uZMmdnRnZ2dnUVZ_tOdnZ2d(a)posted.localnet... > 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. |