Electronics Forum: expiry pcb (Page 1 of 1)

pcb laser markers

Electronics Forum | Mon Jul 19 19:22:09 EDT 2004 | g2garyg2

Laser Marking stations generally accept the product, clamp it in place, then through a motion platform move the product underneath the laser head. Marking is generally conducted with a CO2 laser ranging between 20 to 30 watts. You will loose 20% thro

Working with Lead free and Pb Capacitors

Electronics Forum | Fri Jan 27 18:32:15 EST 2006 | mafc65

Well, most of the capacitor are thru hole, then pcb's goes to adhesive process upsidedown to continue SMT process in which , maximun tempetarure is 120�, so temperature is not problem. About SMT capacitorS, I will check temperature specs before mount

PB-Free HASL and Leaded Solder

Electronics Forum | Thu May 13 09:52:34 EDT 2021 | winston_one

Want to update this question a little, I know it appears few years ago, but I hope there is some updates... We have to assembly few samples of motherboards with this kind of finish (customer mistake during pcb order). Normally we can use leaded sold

Pick and Place vs CAD File

Electronics Forum | Mon Sep 25 08:24:25 EDT 2017 | directx995

At the moment we do it like this: We get .csv or .txt pick and place file and .csv or excel bom file. Then I verify every single placement manualy with BOM and delete placements that are not listed on BOM. (Yes, you are right, I do it for 30 placeme

Solder Balls in Boards

Electronics Forum | Sat Jun 12 00:34:00 EDT 2004 | kanwal324

Hi ! The main problem being faced currently is formation of solder balls - to be precise, these are micro solder beads generally found attached with bodies of SOTs, Chip Caps, Chip Resistors, between pins of SOICs (50 mil) - lying on PCB surface,

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