Electronics Forum | Fri Nov 21 18:28:42 EST 2008 | Frank
In the good old days, I've made raw boards at home. Layout the design and then transfer it to a bare copper clad board. Etching it out is the fun part. I grabbed our 9x13 pyrex baking dish from the kitchen. Using metal etching dish doesn't make
Electronics Forum | Tue Jan 26 12:18:38 EST 2010 | smt_guy
what made us to try it? after testing most general degreases including some electronic degreasers in spray can from reputable manufacturers without having success in achieving a clean and shiny (no stain) surface. we do not want to re-etch or use et
Electronics Forum | Fri Jan 28 04:03:51 EST 2011 | grahamcooper22
Print then dispense in the areas you need extra paste. Why can you not use a stencil which has areas etched away around component patterns to thin the stencil down....for example a 150 micron thick stencil etched to 120 or 100 microns in specific are
Electronics Forum | Wed Mar 04 22:24:28 EST 2015 | SKR
We are using Nutek NTM4910-XL laser marker to etch 2D barcode on all our boards. We added solid silkscreen box on all our boards to create contrast. When we laser etch them, we just burn the silkscreen box so that we can see the soldermask under it c
Electronics Forum | Mon Sep 14 08:10:34 EDT 2015 | iamera
Hello Our production face a problem where our board after etching become shrinkage till 0.09mm but sometime it can be till 0.18mm. this happen after etching still the beginning of process not count for silver through hole and carbon process where th
Electronics Forum | Thu Oct 20 12:33:39 EDT 2016 | cyber_wolf
We get our fids laser etched and never have fid read problems. They are black. (see attached) All of our printers are Momentums. Half etch and fill is old school. I used to take 2 part epoxy and mix black printer toner into it and squeegee the mi
Electronics Forum | Thu Oct 22 22:01:33 EDT 2020 | SMTA-64386500
Hi John - send me an email (david.hillman@collins.com) and I can send you a few photos of what Mike K. was describing in terms of the solder joint surface being "etched" by the cleaning solution. The dull appearance is due to the abundance of lead o
Electronics Forum | Thu Apr 01 16:47:23 EST 1999 | AlexO
Dan, The rationale to use laser cut stencils in my experience is based on the benefits to paste release. Laser cut stencils are "supposed" to have a smoother inner aperture wall. That, combined with the trapezoidal shape (which can be emulated with
Electronics Forum | Tue Feb 23 09:51:35 EST 1999 | Steve Schrader
| Hey all- | | My question is this: My stencil printer operator has said that he has to | wipe our 6-mil stencil each pass to get the paste in the 20-mill pitch | aperatures for a QFP to release well. We are using Amtech NC-559 type 3 | paste with
Electronics Forum | Fri Oct 09 14:41:05 EDT 1998 | Chrys
| 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