Electronics Forum | Thu Jul 14 19:12:40 EDT 2005 | sync40
Hi. In the past years I had made dozens of PCBs but now I am trying to get a professional finishing on them. The main problem is oxidation of the copper traces. Basically I use the silkscreen method to make the pattern in both layers and then etch. L
Electronics Forum | Wed Jul 20 16:02:05 EDT 2005 | Inds
guys, I am having a problem. During my rework (SRT) process, I am trying to reach a board temp of 150degC b4 the top heater comes down for the actual rework process. Due to which the flux (tacflux 20)is burning off and i am seeing lot of non wetting
Electronics Forum | Wed Jul 27 22:14:57 EDT 2005 | Ken
If no-clean...then this seems "relatively" normal. You could try and extend your peak and duration, however, manufacturers are adjusting their chemistry to survive these normal temperatures (up to 260C and 30 seconds within 5C of peak). You will h
Electronics Forum | Tue Aug 02 22:44:42 EDT 2005 | crishan
Thanks for the comments everyone. I did not think of checking the nozzles material, I will check this out. GS, What is PBM, is this some sort of ironiser. Also to clarify, we believe the that the pocket size for the component is too big allowing th
Electronics Forum | Tue Aug 15 00:46:21 EDT 2006 | ahmad
Guys I do not know what you guys are trying to prove. If you have a BGA job to be done JUST forget about using any equipment that is using hot air since you will get into a lot of trouble. It will bend the PCB and need nozzole for each IC find an ER
Electronics Forum | Thu Aug 04 03:56:38 EDT 2005 | Rob
Hi Danny, I do remember you recently suggested to a customer who was new to surface mount & wanted low volume the following equipment that you were selling: 1. MPM AP25 2. CP4 3. IP2 http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CF
Electronics Forum | Wed Aug 10 11:57:41 EDT 2005 | jh0n!
I recently picked up a used GSM-1, 1994 or 1995 vintage. I'm in the process of setting up my first product on it - everything seems to be going well, however there's a constant inch or so offset on the X-axis. That is, when the board slides in, it'
Electronics Forum | Thu Aug 11 13:09:11 EDT 2005 | bman
In addition to Pete's fine tips, here's one we have successfully used in similar situations as long as you're using OA flux. Get some kind of pump action spray bottle (like hair spray comes in) and fill is with some of your wave flux. Use the bottl
Electronics Forum | Wed Aug 17 10:46:48 EDT 2005 | pjc
MPM did not discontinue the camera, the camera manufacturer did. It�s not a custom made camera for MPM. Try searching used or second-source cameras. There are three types of vision systems offered on the SPM: manual cross-hair, semi-auto and high-res
Electronics Forum | Wed Aug 24 12:25:52 EDT 2005 | bman
We've been down this road before, and it doesn't have to be as expensive as it would seem. First, ask your board supplier for a solder sample of the board. They are likely to have a scrap board that you can use for your profiling. As for the BGA(s
