Electronics Forum | Tue Jan 17 11:19:34 EST 2006 | Kris
Amol, RoHS does not apply to BGA on their own. Depends where they go in ? DVD player vs server board There is "solder exemption" for certain product applications. SnPb ball BGA can used with tin-lead solder on server/infrastructure/switch telecom
Electronics Forum | Tue Jan 17 16:43:03 EST 2006 | davef
If you are not washing and want to stay with a peelable mask the two basic types are vinyl and latex. Although we've seen some silicone and urethanes, they cost more. * Do not use latex peelable solder mask with a low residue soldeing process withou
Electronics Forum | Fri Jan 20 09:17:59 EST 2006 | George
Hi "theSaint", We are using SN100C in our wave solder machine. As far as the solder itself, the wave process follows pretty much the same concept as leaded solder. You bring the assembly temp to 90 C or more before the actual wave. Sometimes for mul
Electronics Forum | Wed Feb 01 09:26:39 EST 2006 | pjc
Density is an "implied" measurement to determine activity. Most flux suppliers can sell you a flux acidity (activity) measurement kit. I used one from Multicore a few years back. We used it once in the morning and once after lunch to monitor no-clean
Electronics Forum | Wed Feb 01 10:13:39 EST 2006 | kmorris
I haven't seen a hydrometer used in years. Are > you still foam fluxing? There used to be > automatic units available, but with the advent of > the spray fluxer, they may have dried up. If you > are still foam fluxing with alcohol thinner, >
Electronics Forum | Tue Jan 31 18:22:10 EST 2006 | Joe L
We used an Alpha Metals No Clean Solder Paste on our products. However at 50% humidity and above, electric arching starts to appear across our y-cap, when a hi-pot voltage of 1500V is applied across. At 20% humidity this situation does not occur. Als
Electronics Forum | Mon Feb 06 04:18:03 EST 2006 | Rob
Get a stopwatch & time your functions to see which is the slowest. I am guessing it's going to be the oven, printer (if using paste inspection) or the AOI. If you are talking the average or optimum speed in CPH, that would depend on the type of b
Electronics Forum | Thu Feb 09 10:29:37 EST 2006 | stepheniii
I worked at one place where they had a dishwasher. They had stopped using it by the time I got there. But if they had kept using it I would have gotten a clean glass and put it in to see how clean it came out. I think after a while with only one tan
Electronics Forum | Fri Feb 10 10:56:12 EST 2006 | jax
Has anyone out there actually used this product? We have put in multiple requests for Quotes, samples, and Purchases over the past month with no response. All attempts at contacting the sales group have failed. Currently we are being told that only
Electronics Forum | Fri Oct 06 12:58:07 EDT 2006 | cw
hi All, Anyone use snap on type EMI sheilding before? I would like to provide a DFM to a customer who currently have a EMI shield soldered on the boards, which i found this not quite manufacturing friendly as it block the view for inspection, plus re
