Electronics Forum | Sat Apr 03 16:39:15 EST 2004 | stefwitt
We had a similar system on the Siemens machines, quite some time ago. However, it was not a laser light but a LED and a fiber cable. Actually the center fiber or receiver was surrounded by a bundle of small fibers for the LED light source. You may al
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
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 | Thu Mar 29 09:47:12 EDT 2012 | blnorman
In a previous life we burned bar-codes on PCB with a CO2 laser. Initially we placed a small white epoxy pad to burn the code into. After some experimentation we found that we could eliminate the epoxy and just burn through the soldermask and the un
Electronics Forum | Thu May 17 11:07:11 EDT 2012 | scottp
I don't have an opinion on nano coatings since I haven't tried them. Our suppliers keep pushing it so I'll eventually check it out. The reason I zeroed in on the FG foil is because I almost fell into that trap. Several years ago I wasn't aware the
Electronics Forum | Thu May 17 09:01:01 EDT 2012 | scottp
I'm not sure why anyone would pay extra for FG (fine grain) stencils. I've run studies comparing traditional YAG laser, fiber laser, and E-form stencils with regular stainless, FG, and nickel foils. YAG is the worse and should only be used for pret
Electronics Forum | Fri Mar 20 10:26:05 EDT 2015 | g2garyg2
For laser marking the mark quality is directly related to the PCB composition. If you want to guarantee a good mark every time and have control over the PCB being built (not always the case for contract Mfg) as the other responder stated, placing a w
Electronics Forum | Wed Jan 24 21:56:57 EST 2024 | fortunetech
You could also try something like a Radian desktop fiber laser as a smaller, low cost alternative to accurately and permanently engrave each stencil frame!
Electronics Forum | Thu May 17 11:39:38 EDT 2012 | stentech
Hi again quickly. Anyone need a sample let me know ..no charge. I would be evry interested in your findings and can give many references for you to talk to..customers. Scott I am working on a project with different cut parameters very time consuming
Electronics Forum | Fri May 11 14:54:38 EDT 2012 | stentech
I am not aware of the Nano protek flaking off. However I do believe it can wear off through abrasion. Unforunately there is no red light goes off when it has worn unless you have good paste inspection. Even when it wears it will not take you to a neg
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