Electronics Forum | Thu Oct 27 22:26:37 EDT 2022 | philippg
Hi guys, I am thinking of buying a used Ersa IR/PL 650. I have read in some threads, that it is quite a good and reliable rerwork station. My usecase is mainly high mass pcbs. In the description of the manufacturer it states, that this station is mai
Electronics Forum | Tue Mar 27 04:39:27 EDT 2012 | andrzej
Have you got some experience with using laser (CO2 or fiber one) to label with barcode your PCBs ? So far I thought it is easy process but now we do tests with many PCBs covered with diffrent soldermasks and fiber laser as well as CO2 has same probl
Electronics Forum | Fri Aug 09 12:04:45 EDT 2013 | horchak
well now the truth comes out, and nothing like the smell of burning fiber glass in the morning lol
Electronics Forum | Tue Mar 20 15:59:15 EDT 2007 | blnorman
We use preprinted labels and laser coding. For PCB we laser mark with CO2 (NdYAG for the aluminum heat spreaders). We either have an epoxy legend to burn out or we burn the solder mask to expose the copper ground plane underneath. Laser is a much
Electronics Forum | Mon Jan 10 03:45:23 EST 2022 | proy
YES there is an IPC target/acceptable spec In general terms the barrel thickness in the hole should be 1 mil (thou). IPC has an allowable limit lower around .75 with some other factors. I have been checking barrel plating on all incoming boards since
Electronics Forum | Thu May 11 20:48:14 EDT 2023 | johndep7
I have issues with damaging PCB with depaneling in my company. Mostly mousebite depaneling and some vscore. I have looked into laser depaneling, pneumatic, routers, hand tools but have not found something that I can put full trust in. To understand m
Electronics Forum | Fri May 16 11:19:23 EDT 2003 | blnorman
In addition to the information provided above, we put a bar code label on each of our PCB's, and on 4 lines we burn in the bar code with a laser. That way we have traceability on that board throughout our process. At the end of the line another bar
Electronics Forum | Mon Apr 03 09:25:59 EDT 2017 | Rob
Use a router with fiducial correction? in reality if you are putting a PCB in a plastic enclosure then the injection moulding is going to have far greater tolerances than a laser or router depanelised PCB is. Also, if our laser markers are anything
Electronics Forum | Sun Nov 16 19:05:45 EST 2014 | warwolf
Seen it. We use a lead free process, sometimes our supplier will use a lead process silk screen that burns at a lower temp. The HASL coat was still SN100CL.
Electronics Forum | Tue Apr 28 16:20:06 EDT 2015 | warwolf
Is this solder lead or lead free? Try look at the delta of the PCB during re-flow, you might find that the smaller parts are being "cooked" faster and burning off the flux.
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