Electronics Forum | Tue Aug 04 18:23:19 EDT 1998 | john
We are looking for chem etching equipment. Does anyone know where I can find chem / laser systems?
Electronics Forum | Wed Oct 16 01:28:45 EDT 2002 | redmary
during the failure analysis, how to etch the tin,nickle,and copper?
Electronics Forum | Wed Oct 16 13:16:11 EDT 2002 | davef
Hey Mar, Sounds serious!!! Poke around Buehler, Leco, or Struers Try IPC TM-650 Test Methods Manual: 2.3.6A Etching, Ammonium Persulfate Method - 7/75 2.3.7A Etching, Ferric Chloride Method - 7/75 2.3.7.1A Cupric Chloride Etching Method - 12/94
Electronics Forum | Thu Oct 17 23:25:53 EDT 2002 | redmary
We generally etch the copper back slightly using a 50/50 mix of 3% Hydrogen Peroxide and laboratory grade Ammonium Hydroxide. Swab for about 5 seconds, then rinse. and etch the tin in the solder to further delineate the intermetallic layer that shou
Electronics Forum | Thu Nov 16 06:13:16 EST 2000 | Adam Seychell
I am currently building a home PCB etching tank based on the ammonia/ammonium sulfate chemistry. The etching system consists of a etching tank, and an electrolytic copper recovery tank. The result is a infinitely replenishable etching system without
Electronics Forum | Mon Jul 26 17:57:50 EDT 2021 | cyber_wolf
Place a label and etch that instead of the PCB. Too many variances in solder mask
Electronics Forum | Wed Aug 05 14:55:15 EDT 1998 | john
Probably should have been more specific. We want to do some stencil etching. Mainly for prototype work nothing too high volume. Thanks, Oh yeah, (Ben) and maybe a tattoo here and/or there.. Ha ha ...
Electronics Forum | Thu Jun 03 12:41:49 EDT 2021 | k_moore
Hello people. We have a Nutek LMC-S3 laser etcher that we use for etching 2D datamatrix codes onto our PCBs. The system has been in use for some time, but seems to constantly need tweaking to get reliable results. There are a lot of variables that
Electronics Forum | Thu Aug 06 06:30:45 EDT 1998 | Wayne
John: You can also check out: Lumonics Control Laser Both have CO2 laser systems that might be of interest to you. Wayne
Electronics Forum | Thu Jun 03 17:29:21 EDT 2021 | emeto
From what I figured, machine is as good as the understanding we have about it. I have heard people complaining about machines I know for a fact are great. Manuals and training are there with a reason. There is no universal recipe for anything out the
