Electronics Forum | Thu Jul 06 03:43:22 EDT 2017 | jamesbarnhart
Electronic devices required higher speed, I/O capability, and density to meet standard requirements. Automated robotic soldering solutions that meet the demands of applications are too challenging for hand soldering. Manual soldering, even with the m
Electronics Forum | Fri Apr 22 16:57:10 EDT 2005 | davef
Suppliers are: * Contax Ltd Little Park Farm Road Segensworth West Fareham, Hants, PO15 5SJ UK +44 1489 885808 Fax: +44 1489 885553 * Leister Process Technologies Riedstrasse Sarnen LCRN, 6060 Switzerland 011-41-416627467 Fax: 011-41-416627480 * mt
Electronics Forum | Fri Apr 30 15:13:55 EDT 2004 | SWagner
You could comprimise on the E-Fab stencil and buy a laser cut nickle, it will have similar release characteristics to an E-Fab and only costs $600, they can be purchased from Stork Veco, they are located in Europe.
Electronics Forum | Fri Apr 27 11:24:53 EDT 2007 | realchunks
Hi Steve-O, Good question(s). This process was set-up by an engineer that had a PhD in statistics, took him a year to develop and then thru it over the wall at us. The biggest problem we saw was SPC to measure solder volume. SPC is good for measu
Electronics Forum | Tue Sep 14 09:32:15 EDT 2004 | gregp
Perhaps your stencil supplier could laser mark the number on the stencil. This only helps from here on. How about engraving the numbers on the stencils you already have? Engravers are pretty inexpensive and shouldn't damage the stencils.
Electronics Forum | Wed Jan 27 20:18:42 EST 2016 | lordorica
Trying to find a laser marking machine. Thing is that most of my pcbs have white solder mask, so the when trying to read the 2D code is difficult due to the lack of contrast. Any idea? a different technology? regards
Electronics Forum | Thu Feb 04 20:15:57 EST 2016 | lordorica
I don't own a laser printer right now. I sent samples to some vendors and I couldn't read the codes. Have pictures of 2D codes on white solder mask? Thanks
Electronics Forum | Sun May 23 15:12:59 EDT 1999 | JohnW
| We are running a number of boards with 8-10 25 mil PQFPs on board. Our process is mature with at least 3 years experiance and statistically few opens on the QFPs. Our beloved purchasing department has chased the almighty $ and changed FAB vendor
Electronics Forum | Wed May 25 18:30:11 EDT 2022 | stephendo
And laser diode reflow soldering as well!
Electronics Forum | Thu Feb 04 12:01:07 EST 2016 | g2garyg2
Hi Luis A white mask typically helps in the marking process since you are not reliant upon the PCB layers to create the contrast. Laser marking is really an etching process, so if your laser is set properly (power and focus) the goal with mask is to
