Electronics Forum | Sun Jan 31 22:55:33 EST 1999 | Dennis O'Donnell
| | Hello Netters, | | | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI
Electronics Forum | Wed Feb 03 04:44:43 EST 1999 | Jeff Sanchez
| | | Hello Netters, | | | | | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that t
Electronics Forum | Mon Jan 18 20:00:46 EST 1999 | Wayne Bracy
To ALL: I started writing about how much I hate all of the trade shows, but decided it was a bit negative so deleted... I have indicated that I like Nepcon West, as it is the one American show where we can see all of the latest technology and equip
Electronics Forum | Wed Jan 13 08:24:42 EST 1999 | Tenison Stone
I agree with Chrys. I want more information on the local seminars. My company does not send me to the big shows, but I can go to local seminars. The seminars are usually put on by the big companies, and if I am not on their mailing list I miss the
Electronics Forum | Fri Oct 23 16:19:14 EDT 1998 | Dave f
| I have been requested to explore the possibilities of using an inline lead trimmer in our manufacturing process. I have a few questions I need answered. | 1. Can anyone recommend a good model of trimmer for in-line use? | 2. We do double sided SMT,
Electronics Forum | Thu Oct 15 14:33:37 EDT 1998 | Earl Moon
| | | It seems like most people want to X-Ray their BGAs. We're going to start doing a lot more of them and need to consider X-ray, too. | | | Q: Do most people/companies X-ray everyBGA or do they just do SPC? | | | Q: Can you get away with spending
Electronics Forum | Thu Oct 15 17:20:25 EDT 1998 | Justin Medernach
| | | | It seems like most people want to X-Ray their BGAs. We're going to start doing a lot more of them and need to consider X-ray, too. | | | | Q: Do most people/companies X-ray everyBGA or do they just do SPC? | | | | Q: Can you get away with sp
Electronics Forum | Sat Sep 26 19:09:17 EDT 1998 | Graham Naisbitt
As an addendum to Daves posting, please consider that: There is no such thing as no residue fluxing. A no-clean must herefore, have benign residues - in other words, they are not as efficient at removing surface oxides to enable good solder joints. S
Electronics Forum | Tue Jul 28 17:23:58 EDT 1998 | Robert Steltman
| | We are about to run our first BGA devices and would appreciate some confirmation on a few points. | | First some details: | | PCB & Device: | | ============= | | 1) 16 layer (4 power, 4 gnd, 8 signal) | | 2) gold on nickel finish | | 3) ceramic
Electronics Forum | Thu Jun 25 09:08:14 EDT 1998 | Russ Miculich
Thought I'd jump in as I helped develop materials for the FC game. Au/Pb - bumping - talk to Hughes Tuscon about this. They do it and will discuss the process. For Flip Chip Technology here in the States - contact Peter Elenius at Flip Chip Techno
