Electronics Forum | Fri May 11 03:55:22 EDT 2007 | lupo
Hi everybody, Please could anyone shed any light on the subject: resistance laser cutting with flux- calibration of LEDs during electronic assembly phase. Should special equipments be used? What is exactly the process? Thanks and Regards,
Electronics Forum | Fri May 11 10:48:51 EDT 2007 | Rob
Hi Lupo, Are you talking about laser trimming the current limiting resistors in front of the LEDs, whilst dynamically measuring their output to get set light levels? If so then you need a laser trimmer & a very good photodiode/comparator feedback l
Electronics Forum | Wed Dec 01 17:05:51 EST 2004 | grayman
We looking for a new technology Laser PCB cutting. We have tried some laser equipment and the result was burn PCB. Can anyone suggest the best laser manufacturer for this application and if you have tried this process? Your help is highly appreciate
Electronics Forum | Tue Dec 07 00:46:34 EST 2004 | Jamstart
Hi, there are many type of lasers and each have its own applications. Have you tried the short pulse laser? I was told that it will have very minimal heat dissipated on the surface. On the other hand, there is also a water assisted laser where the wa
Electronics Forum | Tue Dec 07 06:11:01 EST 2004 | grayman
Jamstart, Thank you for the info. Can you give me the website of these laser manufacturer. Thank you, Arman
Electronics Forum | Wed Dec 08 17:11:24 EST 2004 | SEvers
I am very familliar with various lasers and cutting technologies. This is probably the only laser technology that has a chance to do what you are after on FR-4 G10, G11 etc and not burn. It's new ground for them and I'll bet the system is not tooled
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 | Mon Jul 12 11:11:25 EDT 2004 | Stefan
For laser marking you don�t require as powerful lasers then for cutting. A 20 Watt laser diode does already a good job. Because of the safety requirements the laser operates in an enclosure, which means more $$$ if you want to use the laser in line
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
