Electronics Forum | Mon Dec 18 12:17:17 EST 2006 | russ
Real tough to foam that no-clean formula there. Most no-cleans are notoriously difficult to foam. I assume that you have both a pressure and a flow regulator. low pressure and high flow are keys to fowm head height as well as S.G. also make sure
Electronics Forum | Thu Jan 04 21:48:53 EST 2007 | davef
You mean it's not OK to celebrate Notre Dame loosing its ninth straight bowl game since 1995? * Notre Dame has lost the last 16 games against teams with top 10 rankings. * Fighting Irish haven't beaten a team of real consequence in the last two seaso
Electronics Forum | Tue Jan 09 22:16:17 EST 2007 | guest
For chip components it is very hard to identify specially the capacitors. You could get sample of each chip manufacture and compare the color. This is very labor intensive task. I suggest to sort by value ( capacitance, resistance) than by manufac
Electronics Forum | Thu Feb 08 15:05:32 EST 2007 | realchunks
Wow, what a bunch of crabby old men. BGA opens can occur from pre,during or post process. I never chimmed in cause the original poster said they would performa a dye test. Yet as usual, they never get back to this forum on what the cause was. So
Electronics Forum | Wed Jan 17 17:09:43 EST 2007 | russ
appears to be incomplete reflow on a couple of balls or they were moved during a cooldown. it also seems as though there is a deviation in ball size due to inconsistant paste application possibly. I would stop applying paste and just reflow that pa
Electronics Forum | Mon Jan 22 02:35:57 EST 2007 | AR
Thanks for the info everybody. As Real Chunks stated, a lot of paste is needed in order to solder the clinched part of the lead on to the pad. It can be done with a dispenser but it takes a lot of time. The good part is that the result looks surpris
Electronics Forum | Wed Jan 24 09:52:50 EST 2007 | electronhose
Sounds like you need a support pallet to accommodate the narrow side clearance. Several pallet houses made pallets that work in screen printing that have flush board edge clamps that hold the board in the pallet yet allow the stencil to come all the
Electronics Forum | Tue Jan 30 15:31:07 EST 2007 | slthomas
The must-do is to inspect for coverage and registration. How much bare pad and registration error you can tolerate is process and product dependant, but you can measure both fairly accurately with a reticle on a microscope. Developing measurement te
Electronics Forum | Mon Feb 12 10:27:33 EST 2007 | muse95
Tha type of stuff (distorted words, email address verification) possibly stops automatic computer generated spam, but as explained to me on another forum, even with those registration steps in place, there are real people out there that are paid for
Electronics Forum | Wed Feb 28 07:31:16 EST 2007 | lococost
you mean to tell us you actually know who larry is, Steve? So he would be an actual real living human beeing, that's quiete frightening! Well, I dont work in Idaho, so I guess I have nothing to worry about. Not excuse me as I go sniff some more le
