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 | Tue Nov 28 15:11:22 EST 2023 | ttheis
I agree with Sr. Tech; simply include any notes you want etched on the stencil and ensure they know you want the note etched on the stencil. If you have a lot of stencils and don't want to ship them back, then maybe a low cost portable laser marker w
Electronics Forum | Fri Sep 22 09:20:57 EDT 2000 | S. REYNAUD
Hi guys !! I'm searching a method to wet etch 100 Angstr�m of an optic layer of Ta2O5, through a photo resist mask. Thanks in advance St�phanie
Electronics Forum | Wed Aug 05 13:09:01 EDT 1998 | Dave F
| We are looking for chem etching equipment. | Does anyone know where I can find chem / laser | systems? John: What is your planned end-use of such a system? 1 Making labels / labeling parts 2 Making SMT stencils 3 Something else
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 | Mon Nov 08 12:06:40 EST 2004 | davef
We are aware of no transparent laminates. Most are roughly translucent, with a milky white color. Some laminated are quite thin and could serve your purpose. As an alternative, could you etch foil [that's readily available] and the attach the etch
Electronics Forum | Wed Mar 09 20:36:03 EST 2005 | amstech
We are looking for a PCB / copper etch services in India and interested parties may contact us at goburam@yahoo.com Regards.amstech
Electronics Forum | Wed Oct 12 13:44:10 EDT 2016 | dekhead
Yes, bottom-side fids are usually half-etched with epoxy fill. just the half-etch gives a pretty "dirty" looking fid.
Electronics Forum | Wed Feb 07 15:03:54 EST 2024 | madisreivik
Also, if you use etching pen, clean the surface first with solvent as grease blocks the etchant. Some rubbing with steel wool should also help.
Electronics Forum | Fri Oct 09 16:42:57 EDT 1998 | Dave F
| Hi- | | I'm looking for an etch cutting machine. My present machine- Magic C-60 - made by Automation Unlimited is at the end of its useful life. A.U. no longer supports it and no longer manufactures new models. I am trying to find SOMEONE who d