Electronics Forum | Fri Sep 11 21:36:47 EDT 1998 | Steve Gregory
Thomas, I imagine if you could get everybody's opinion who's worked with vibratory feeders for any length of time, they'll all tell you they basically suck...it's better than nothing when you have to deal with tubed parts, but they still suck. Here's
Electronics Forum | Wed Sep 02 08:52:13 EDT 1998 | Justin Medernach
| | We are experiencing shorting on a BGA. The part has a 1mm pitch with a 196 I/O count. The problem seems to pop up without warning & disappear in the same manner. | | Our pad design is .020" diameter pads with .025" solder resist diameter. Th
Electronics Forum | Tue Aug 25 09:47:32 EDT 1998 | Earl Moon
| Thanks for the great info, man!! | | | | | What conditions make Earl Moon say "damn, why can't XXX get the HASL right? Just look at this crummy board. Get a RMA No. Stat." | | I don't have to get that frustrated because I deal with those who do
Electronics Forum | Sat Jun 13 00:33:41 EDT 1998 | Scott McKee
| Hidee Ho Brian! | Just like the other Steve, we just bought a SPM too. Our is brand new, and it's a SPM-AV (has vision). The other option we have is a automatic underside stencil cleaner. | We're a contract assembler as well, just starti
Electronics Forum | Wed Jun 03 21:25:33 EDT 1998 | John Allan
| Hello: | BACKGROUD: SMT components soldered on the top-side of boards that also require wave soldering have the potential to reflow during wave soldering. Reflowing these components during wave soldering is not good. It can cause cold joints, op
Electronics Forum | Tue Apr 21 20:58:11 EDT 1998 | Steve Gregory
Mike wrote: ...I did buy "Surfboards" built for this purpose but they averaged about $5.oo a piece, and when your running 20 trainers, and they still have to be soldered in place. $5 a test is kinda high when evaluating a 32 cent chip...(snip) Hi
Electronics Forum | Mon Apr 13 16:37:26 EDT 1998 | Steve Gregory
| Wondering if anyone has information on percentage of components that we | can expect to "lose" during our SMT process. We are new to SMT, using | QUAD machines and feel we are losing to many parts during our process. | We are spending a lot of tou
Electronics Forum | Thu Mar 19 12:13:16 EST 1998 | Justin Medernach
| Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | 1. Cpk's
Electronics Forum | Thu Mar 19 12:37:15 EST 1998 | Earl Moon
| | Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | | 1. C
Electronics Forum | Fri Aug 17 06:40:27 EDT 2001 | nifhail
Thanx Dave/Hussman.. We normally store our solder paste in the refrigerator at 0-10 Deg C as per what the supplier recommanded. Our floor temperature is controlled at 22 +/- 5 Deg C and Humidity is at 55 +/- 5%. Recently we have customer asking fo
