Electronics Forum | Mon Jan 30 07:22:51 EST 2006 | Rob
Hi Nick, It's probably one of two devices - MOC8020 or MOC8021 depending on the CTR (Current transfer ratio). I have always used http://www.icmaster.com for older semiconductor datasheets. (Back in the old days we used to use the IC master data boo
Electronics Forum | Thu Jun 15 13:41:12 EDT 2006 | patrickbruneel
Yes there is RoHS certified ink it just cost twice as much as the regular ink. Just kidding Some people ask for RoHaaS compliance on cardboard boxes, pencils etc. What a mess $%^$ To answer your question, Ink is made from ethanol (ethyl alcohol) and
Electronics Forum | Thu May 27 14:44:05 EDT 1999 | Deon Nungaray
| One of our board fab houses is asking (again) to eliminate the reference designators and polarity markings from boards. This isn't feasible for thru-hole, but what is the industry trend on surface mount assemblies? | Deon Response: Hi Greg, Fr
Electronics Forum | Thu Jun 28 09:11:19 EDT 2012 | davef
I though this was a good article on picking a part numbering scheme and since you weren't getting any takes figured I throw this out there and maybe get a conversation going. Part number system: How to get started Filed under: Item and File Man
Electronics Forum | Wed Jan 16 21:37:48 EST 2008 | davef
If this component is laser marked, you could just spray conformal coat on it and the marking will disappear.
Electronics Forum | Mon Jul 23 15:37:40 EDT 2012 | rway
mccabekev, How are you applying the mark? Can you scribe the board?
Electronics Forum | Fri Mar 20 10:26:05 EDT 2015 | g2garyg2
For laser marking the mark quality is directly related to the PCB composition. If you want to guarantee a good mark every time and have control over the PCB being built (not always the case for contract Mfg) as the other responder stated, placing a w
Electronics Forum | Mon Jan 14 23:02:52 EST 2008 | davef
You don't mention any particular IC or manufacturer or marking method. However, most IC marking is done with lasers these days. The laser actually alters the encapsulation so the only way to erase the marking is to remove the encapsulation. Otherwise
Electronics Forum | Wed Mar 04 10:24:50 EST 2015 | grenier
I'm looking for laser marking equipment for direct serial number Id on PCBAs. Is it recommended to laser mark on solder mask or copper or raw material?
Electronics Forum | Fri Jan 11 00:32:16 EST 2008 | johnlee9210
Prior to packing the boards, we cover the marking on the IC by dispensing epoxy on top it. This is a way to protect our design so no one can copy it. We have a lot of boards and the optr takes a long time doing it manually. im thinking of using a pne
