Electronics Forum | Fri Sep 29 13:51:46 EDT 2000 | C. Ortner
We work in a "low" volume high reliability house building mixed tech double sided multi layer CCA's for long lived space applications. Our present problem is inspection questioning every dimple/anomaly on every leadless part(we put passives only thr
Electronics Forum | Sun Oct 01 05:00:08 EDT 2000 | jarnopy
Okay, you have only few different product. Smallest package is 0402 and biggest is 144 pins ic. So, maybe you don't need get high-speed machine. You must place about 12000cmp/hour. You can buy quite cheap placement machine. I can't tell what is good
Electronics Forum | Tue Oct 03 11:07:00 EDT 2000 | C.K.
"In Reality there's no additional cost or extra cost for the cleaning time since there is no increase on operator's wage in doing the cleaning but instead just an additional load or job for the operators at the same wage cost." I'd have to agree...
Electronics Forum | Wed Oct 04 14:54:46 EDT 2000 | Sean
I feel Woldgang poses an interesting question. It seems you have already decided that dispensing is the path you wish to take. Yet can you tell us why? Is there a flexibility vs. throughput arguement here? Justification of dispense via the cleani
Electronics Forum | Fri Sep 15 16:37:49 EDT 2000 | Dave F
Sounds like someone aimin� fo tha big hurt, if ya axes me. Two spots to place your lawn darts are: 1 J Hwang in "Modern Solder Technology � " states (p.354) that " � extreme CTE mismatch between silicon IC (~2) and the PCB (~16), solder connections
Electronics Forum | Wed Sep 06 11:18:52 EDT 2000 | Chris May
Randy, I have been with my present company about 14 months and my first and ongoing task is to improve 1st time yield rates at ATE. Upon examination of the failures (14 months ago)there were cases of IC legs being physically wider than the pads on
Electronics Forum | Mon Aug 28 18:57:41 EDT 2000 | Earl Moon
Steve, This is a good, well repeated, not identified by IPC yet issue. I, and some others in industry, for years have proven and recommended smaller pads for various devices. I, and some others in industry, use 0402 pads for 0603 device types. IPC o
Electronics Forum | Tue Aug 29 05:58:28 EDT 2000 | Chris May
Andy, I have been "evaluating" some AOI systems. However, some of these are actually SAOI (Semi Automatic Optical Inspection), which is not a problem if that is what fits your process and budget. You can buy a high end system complete with many cam
Electronics Forum | Wed Aug 23 08:32:32 EDT 2000 | Earl Moon
Well Sun, This is Moon and you are out of phase with reality. I have nothing against advertising as long as it does not prohibit free technical intercourse as it did me and the investment I made several years ago. Free my ass. I mean, let them make
Electronics Forum | Fri Aug 25 09:18:40 EDT 2000 | Peter
Welcome back Moon Man. Your title is an apt description of the occurrence of your return. I always enjoy your bombastic baccalaureate, and welcome your feedback and observations. It is very helpful to hear from someone who has reached the point of fr
