Electronics Forum | Tue Oct 30 06:20:58 EDT 2007 | aj
Hi All, I would appreciate some advise with regard to Leadfree settings for a 5 zone reflow oven. I have a 35mm square BGA 672 pin on board. I am struggling to get the Delta T down to 2 degrees C . I have 5 Thermocuples drilled up from the bottom a
Electronics Forum | Fri Nov 09 08:57:56 EST 2007 | bbarton
By and large, the industry has determined that SAC alloys are the "best fit" for replacement of SnPb in our industry. SAC305 seems to be the default alloy at this time. There are several other alloys out there, each with their own strengths and weakn
Electronics Forum | Tue Nov 20 23:04:10 EST 2007 | wim
I am currently looking at selective solder > machines. The two that i have looked at are the > KIss 104 and the APS Novastar SP A400. Both > machines are in the price range i need to be in. > There are very different from each other as far > as
Electronics Forum | Tue Nov 27 19:41:53 EST 2007 | g2garyg2
Well, there seems to be many opinions, many of which could be correct, however... With the proper laser they can be quite good for soldering. Here are a few guidelines I would like to suggest. 1) Have your product soldered first (by the vendor) 2) T
Electronics Forum | Fri Jan 04 07:54:24 EST 2008 | benzy1961
My experience has been very different from the other responders. We put an in-line system in place about 3 months ago and the results have been pretty eye-opening. We were astounded to see how many prints were actually bad once we started inspectin
Electronics Forum | Mon Jan 07 09:25:55 EST 2008 | pjc
One per operator is the optimum for obvious. 3 to 4 per operator is more typical. The number is not as important as the type and time. Like don't have someone handle 2 different TO92 part nrs., splitting them up to different operators eliminates the
Electronics Forum | Tue Jan 15 16:44:54 EST 2008 | gregoryyork
I found some machine manufacturers put convection nozzles in line parallel with each other instead of staggering them so you get a nice parallel line up the board where there is no flux be it no residue alcohol or VOC Free. The best I could find was
Electronics Forum | Tue Jan 29 14:19:29 EST 2008 | operator
Well, here it is. My responsibilities: 1.All Documentation (build packets, processes docs, etc...Even some administrational docs) 2. Oven profiling and everything that goes with it (customer interaction, board& component baking ) 3. ESD program et
Electronics Forum | Fri Mar 14 15:14:31 EDT 2008 | samir
Dean, thanks for schooling me on this. I talked to an industry collegue whom I met at APEX, and it was he who had told me of the IAg "rework issue." Basically, he told me that they had field failures on QFPs that were a direct result of trying to "
Electronics Forum | Tue Mar 18 14:29:46 EDT 2008 | chrisgriffin
That AP can paste 0201's and has built in 2D. I would keep it. The AP series "forcers and platens" design is a bit fragile, but reliable and tends to last a long time. My biggest complaint is the cheap air hoses to the 3 forcers. After about 8 ye
