Electronics Forum | Wed Mar 16 06:17:34 EST 2005 | Grant
Hi, We have this model wave, and spent a few days trying to eliminate residue. We also tried various no clean fluxes, and because we sell PCI cards they need to be clean, and we don't want to deal with a cleaning process. But in the end we gave up
Electronics Forum | Wed Mar 30 19:54:36 EST 2005 | mattkehoe
We've already done it for a customer. We used 63/37 ssd's on the top side where the are a few caps and one 256 pin QFP, coated with adhesive flux to hold the component, and lead free un flattened ssd's on the bottom to be attached to the other boar
Electronics Forum | Sat Mar 19 20:59:57 EST 2005 | nate
i have a bit of a problem. i need a 320x240 lcd with a 5.7" screen, and a max width of 146mm. i have checked with about a dozen manufacturers and 148mm is the smallest they make without custom designing the pcb, and this is prohibitively expensive. w
Electronics Forum | Thu Mar 24 18:29:36 EST 2005 | SuePH
Thanks for the reply, Russ. I looked at the Air-Vac web site. I am looking for something that is a lot more basic than their machine. I had seen a small table top wave machine at a customers shop a few years ago. It had a pump and different si
Electronics Forum | Thu Apr 07 14:07:11 EDT 2005 | Tater
Both methods are fine, but you should create or use a spec that fits your process needs. You should also consider if this warp will directly impact the performance of your final product once it's completely built. Then make sure your customer won't
Electronics Forum | Fri Apr 08 05:10:10 EDT 2005 | siverts
What is Your customers requirements? Is the PCBA mounted with front/back connectors? Will the PCBA be mounded in a rack and connected to opposite connectors on the other side? In this case, if the warpage is more than approx 1-1.5 % You will then n
Electronics Forum | Wed Apr 20 17:50:13 EDT 2005 | greg york
Try a rosin flux this has solved it for me on numerous occasions, no need to use heavy rosin only around 4% total solids so rosin around 1.5% is sufficient. It is down to the plasticizers which are tacky coming out of the resist. The rosin is an imme
Electronics Forum | Mon Apr 18 10:01:33 EDT 2005 | global
The CCA drawing actually does belong to our customer as it is a DOD contract. We were the last ones to ever build the cards but since so much time has passed since the last build all of our PWB vendors like us have probably purged their systems of al
Electronics Forum | Wed Apr 20 17:21:25 EDT 2005 | James
We go through maybe 8 a year. We have 2 lines with LCS and each traverser has 4 pads so that would be $856/yr for 8 pieces of foam. I know they are custom made but I am thinking if I could find the right foam I could make these myself. I was told
Electronics Forum | Sat Apr 23 19:31:25 EDT 2005 | molosse21
Hi, Is there a solder paste alloy espacially done to solder components on a pcb gold plated ??? I am using the AIM 297DX SN63/PB37 no clean and i had a comments from my customer telling me that i am not using the right alloy. Personally i never he