Electronics Forum | Tue Oct 09 13:29:35 EDT 2012 | ericrr
Did I loose the plot at my last response? (October 04, 2012 10:22 AM") or was this to do pick & place assembly, NOT PCB panel manufacture.
Electronics Forum | Sun Apr 28 07:34:34 EDT 2002 | hany_khoga
Dear Tom : I hope I �m not too late. We produce PC motherboards with some buses exceeding the speed of 100MHz . we use no clean flux and it is OK even with the residues you can see under a microscope. But according to our own experience through a mo
Electronics Forum | Thu Oct 04 10:22:56 EDT 2012 | ericrr
By the way how are PCB's made (briefly)? During my radio apprenticeship in the 70's I made PCB via the screen printing method, The other method for say one off or small volume is the photo-etch. Is there a third high tech method, or just a updated
Electronics Forum | Tue Dec 07 14:21:41 EST 1999 | Brian W.
In my experience, the most commonly accepted theory is that 100% inspection is only 80% effective AT BEST. That means that if your inspoectors are happy, noy outside concerns, well-rested, etc, they will catch 80% of the defects. This number goes d
Electronics Forum | Wed Aug 25 00:10:13 EDT 2021 | sarason
The company that does this is McDermid. There are multiple different ways of doing it. Screen print silver paste onto the mylar, "activate" the film to be conductive, then plate in copper. These processes are found in the patent literature which is e
Electronics Forum | Thu Jun 26 03:27:35 EDT 2003 | loz
We currently have a requirement to build flexi circuits and mount two 40 way, 20 thou connectors at each end. The flexi pcb's arrived in singlulated format. Ideally we would like to have the circuits panelised for machine building as hand placing the
Electronics Forum | Thu Jun 26 10:03:36 EDT 2003 | swagner
We have been processing a 3 and 5 up flex array for nearly four years on pallets and have had a pretty steep learning curve. Make sure you have vacuum holes in your pallet for the screen printing process, also work with your support block vendor to
Electronics Forum | Wed Dec 08 02:07:25 EST 1999 | Scott Cook
Tim, What Brian writes is all true. However, let em put it into a sales / marketing perspective..... The REAL issue in your situation is: Who is responsible for the failures which WILL result in shipping untested product? Typically, your customer
Electronics Forum | Wed May 23 10:17:59 EDT 2001 | doctord
Anyone heard of a PCB manufacturer called DES? Thanx Dave C.
Electronics Forum | Fri Sep 13 13:51:38 EDT 2002 | kenbliss
I recently saw an ad in a major trade magazine that stated: �about 60%of all printed circuit board manufacturing defects are due to stencil printing� I would like to hear comments from people that are running SMT lines, is this fact and if it is, w
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