Electronics Forum | Fri Feb 25 16:06:51 EST 2000 | Dave F
Istv�n: Given a choice, I�d run second side PLCC44s at 90� to the wave. As far as thieves are concerned, I�d have two, mirror images of each other. Unlike most, these thieves are not connected to pads. They are out-side of the last pad on the sid
Electronics Forum | Thu Feb 24 16:08:54 EST 2000 | Gary
I have the situation where we may need to use a variety of reflow temperatures. It seems that the design engineers want us to try a variety of "unspecified" pastes on the products. For example, the first PCB would be assembled using a higher temperat
Electronics Forum | Thu Feb 24 12:48:45 EST 2000 | Larry Johnson
I have seen this problem several times on several different IP3's... When the MTU is about to pick a part from the tray, the machine will just stop. No error, just says, "producting", in green. E-stop, reset and start again, and you hear air from
Electronics Forum | Thu Feb 24 13:28:31 EST 2000 | Dave F
Robert: Ah, opinions are like mothers, everyone has one. Here's mine: 1 Goto the Altera site, get a copy of "AN 114," follow it. Generally, manufacturers are closer to the requirements of their components than others are. 2 Metal showing on the b
Electronics Forum | Fri Feb 25 14:34:44 EST 2000 | Ioan
Larry, the best paste thinner is the one that your paste supplier recommends. You should check with him. We have no problems removing the no-clean paste with alcohol. If you want to give it a try, make sure you use IP alcohol, not alcohol based flux
Electronics Forum | Wed Feb 23 21:24:42 EST 2000 | Dave F
Chris: Whatever way you decide to define your pads, use the same type on the component and the board. Non-solder mask defined pad advantages: � No point-of-stress concentration at edge mask and solder ball � No CTE mismatch at edge mask and solder
Electronics Forum | Wed Feb 23 11:02:41 EST 2000 | John
John, I'll try to take a crack at it. We manufacture our own boards, and have a high mix. We currently have BOTH a Camalot 2800 Dispenser and a DEK 260 Screen printer. We use the camalot for glue applications, and prototype paste. We use the printe
Electronics Forum | Tue Feb 22 13:58:15 EST 2000 | Steve Thomas
I'm looking at stencil printers, particularly those that can produce good repeatable prints on finepitch boards with minimal setup and training. I would love to find a printer that does auto x-y-theta alignment (would like a system that aligns sten
Electronics Forum | Fri Mar 03 10:20:12 EST 2000 | se
Steve, I'd stop worrying about the in-line feature of the printer, I've never really seen an in-line system that wasn't capable of batch operation and there will be very little, if any, cost saving associated with going batch load only. An in-line m
Electronics Forum | Tue Feb 22 07:59:54 EST 2000 | Hany A. Salam
Hello friends: In a few weeks we will have to assemble PC motherboards. We decided to use to purchase an ICT for testing the semi assembled boards (I mean with only SMD components on). Would anyone kindly like to recommend a SPECIFIC brand or model
