Electronics Forum | Wed Mar 07 20:37:38 EST 2001 | davef
I agree. The bar coded label you use should not be affected by the solder mask of the board. The label should have sharp contrast between the segments of the code to modulate the returned light and allow the reader to discriminate between light and
Electronics Forum | Sun Mar 01 04:24:06 EST 2015 | 3dpcb
Thanks Sarason, You are right that chemists and physicists now have some new tricks. Using nano-chemistry the physical properties of the materials change. The melting temperature of our nano-particle silver is below 150C. The insulator is also a nano
Electronics Forum | Fri Sep 01 15:33:29 EDT 2006 | Cmiller
Rick, I think Autosplice and Berg did that but of course, it was a little before my time. But the comparison is the same as what HP does with injet printers and the ink cartridges which for some reason made me think of a screen printer someone made t
Electronics Forum | Wed Jan 23 23:45:35 EST 2019 | kiransahu
Piezoelectric type (office/industrial) In this method, a piezoelectric (piezo) element, whose volume is deformed when voltage is applied, is used to discharge ink particles. This element is attached to the component that is filled with ink. Then, th
Electronics Forum | Fri Jul 07 11:06:44 EDT 2000 | John O'Brien
You ought to consider Data Matrix directly marked on the boards It can be done with laser, inkjet, or other permanent marking methods. Never falls off, can be read even if 30% is obliterated. For an example, check any AMD (K6, K7) or Intel Pentium c
Electronics Forum | Fri Mar 12 19:09:21 EST 1999 | Jess Baker
Manufacturers who have to mark barcodes onto PCB's without secondary application of pressure sensitive labels can etch it on, screen it on, inkjet it on, use laser marking, or a combination of those. Using a laser marker to write a code into a label
Electronics Forum | Wed Jul 14 19:05:10 EDT 1999 | JohnW
| I'm doing some basic research in trying to understand the purpose | and drivers that cause bar code (or other) marking of PCBs. I would appreciate any knowledgable volunteers willing to speak with me -your name, number, the best time for the call-
| 1 |
