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 | 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
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 | 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 | Wed Jan 30 04:23:25 EST 2008 | chs
What type of conformal coating spray ? Is it permenant or washable ?
Electronics Forum | Thu Jun 30 05:08:41 EDT 2005 | saddo
wanna know part no. ! Marking on top-side "GVH", 6 pins very small IC. I guess it is a kind of switch for Tx/Rx. Anybody seen "GVH" ?
Electronics Forum | Wed Jan 30 20:07:56 EST 2008 | davef
Any ol' acrylic or urethane will work. It's possible to remove these conformal coatings. We've never removed coating from components to determine if the marking is still unlegible
Electronics Forum | Mon Jul 04 08:24:48 EDT 2005 | stepheniii
GVH is unfortuneatly not listed here, but maybe you can figure out the manufacturer and get an answer from their web site. http://www.tkb-4u.com/code/smdcode/smdcodeG.php Stephen Olan
Electronics Forum | Wed Jan 16 07:49:40 EST 2008 | bandjwet
John: As one of the previous replies indicated a LASER of the proper wavelength (organic materials) will do this job. Contact BEST at http://www.solder.net offline to see if this is an option you want to pursue. Other methods include labels and m
