Electronics Forum | Wed Aug 22 14:25:22 EDT 2007 | russ
Go inform the owner of your company that you are spending hours of labor dealing with these parts instead of spending the extra 4 dollars it takes to buy an entire reel. When we deal with strips we make sure that an extra amount is ordered to apply
Electronics Forum | Tue Dec 26 10:54:37 EST 2006 | yusufgomec
We use hot air leveling (HAL) process in pcb production. HAL process is 3 steps. �n 1. step flux. 2. step is HAL. And 3. step is rinsing. As you know there is mustn't any flux after rinsing operation. Our flux chemical is water soluable. But there ar
Electronics Forum | Thu Dec 28 22:00:45 EST 2006 | Sue Kim
Hi all, I am doing some research on SMT machines. I would like as many people as possible to rate the following machines 1-6. The number 1 would be the best, number 6, the least desirable of the 6. I realize that there are dozens of factors to con
Electronics Forum | Mon Jan 08 11:14:15 EST 2007 | slthomas
Of that list, I've only worked with Panasonic. Complex, fast chipshooters but noisy, a little clunky on the operator interface but the MSH's were vintage 1997 or so. The MPAV2B wasn't as accurate as I think it should have been but it got the job done
Electronics Forum | Thu Jan 04 02:25:12 EST 2007 | Loco
Sorry Dave? There is a seperate table safely hidden away in the D version, but i dont know if it is something new. chapter 7 THT - 7.5.5 Supported holes - solder has a table specifically for PIP, table 7-7 Plated trough holes with component leads -
Electronics Forum | Wed Feb 07 16:16:10 EST 2007 | mr
I have seen this before. Check: --Vibration of belt --Interference (part getting "brushed off" while reflowing bottom-side components --Some glues' cross-linking mechanism is impaired by the flux during migration in reflow, redering the glue useless
Electronics Forum | Thu Jan 11 04:10:15 EST 2007 | fpcb
This was helpfull. Thnks . The Program origin was far away from the fiducials. Thats why I have this message. Now the next problem: I insert command N2 with M801 , I go at 1st fiducial .... all ok I insert command N3 with
Electronics Forum | Tue Jan 09 13:01:17 EST 2007 | stepheniii
Not unless it's a case of "the only difference is..." What I mean by that is more than once I've been told the only difference in a new rev is one component or one change. But the truth was that was the only reason for the change, and in fact there
Electronics Forum | Fri Jan 12 19:49:07 EST 2007 | stepheniii
I think she might be more on track about the air flow. I would think they not only have thermal mass but also emit thermal energy well which would add to the dificutly of removing them. I think a Dpak would have more local thermal mass than the shie
Electronics Forum | Fri Jan 12 17:33:56 EST 2007 | John S.
I've not seen it on a solder joint, but I've seen it on an SMT pad that had been skipped in a wave solder operation. The boards were under inspection for poor solderability. We never really pinpointed the cause. It would make a perfect 6 pointed s
