Electronics Forum | Sun Nov 06 03:09:44 EST 2016 | muzzy
Hello. Thank you for your answer. Yes, you are right. It would be best to badmark those boards. But we, as a small contract assembler, can't throw away a 1/5 of client boards just because of damaged fiducials. Using pads and other features as fiducia
Electronics Forum | Fri Jul 26 13:53:22 EDT 2002 | caldon
Is it possible to Design out the fiducial and use the local fiducials on the panelized boards? Cal
Electronics Forum | Wed Jul 31 17:34:00 EDT 2002 | davef
No, but then again we do not stock boards longer than 6 months
Electronics Forum | Sun Jun 14 03:02:14 EDT 2020 | kylehunter
We did a batch of boards with lead free HASL that we thought was leaded. Using standard leaded paste worked, but we did have some wetting issues. The issues were resolved when switching back to leaded HASL. Can't speak to your specific fiducial issu
Electronics Forum | Mon Jul 29 17:07:10 EDT 2002 | dsorg
We remove the fiducials by pushing sideways on them with a hot soldering iron. The copper pad separates from the FR4. We collect them and dispose of them. We have thought of disposing of the rail material with the boards, but our recycler doesn't w
Electronics Forum | Thu Jul 25 15:14:05 EDT 2002 | dsorg
In the case where fiducials with a HASL finish are removed from a panel in the depanelizing process, what do most people do for disposing of the rails? Since the HASL finish has lead in it, is it generally required that they be disposed of like print
Electronics Forum | Mon Jul 29 17:00:27 EDT 2002 | dsorg
We're a contract manufacturer, so we are at the mercy of our customers sometimes. We strongly encourage fiducials on the board instead of the rails, but sometimes the customer doesn't want to spend the time or money to do it.
Electronics Forum | Fri Jun 12 21:36:04 EDT 2020 | SMTA-Josh
Has anyone had an issue with changing from a HASL surface finish to a LF HASL finish if it is still being used in a leaded process? Also we are having issues with the planarity on the fiducials with the HASL finish. Are there any suggestions or ch
Electronics Forum | Tue Jul 03 02:43:20 EDT 2012 | grillomalta
We clean a good number of fiducials, mostly where HASL PCBs are used. Since the pad is not exactly flat, our SONY 1500 MKII reflects the light from what is essentially, a small 'mound'... Many times our operators use an eraser to 'dull' the finish.
Electronics Forum | Thu Jul 25 21:58:20 EDT 2002 | davef
How do you �physically remove the solder from the fiducal prior to disposing of the balance of the rail�? We don�t HASL our fiducals. Easier to see with vid head. If you need to HASL your fiducals, consider: * Disposing of the rails with your scra
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