Electronics Forum | Fri Mar 26 17:12:17 EST 2004 | ben
I have recently encountered a new pcb design with a very high density of components on either side of the pcb. One of the suggested "fixes" is to use the smt pads as vias i.e. the via will be drilled thorough the centre of the smt pad. My concern i
Electronics Forum | Thu Apr 27 08:42:22 EDT 2017 | pvasquez
Hello M. We are a low volume high mix manufacturer with a total of 7 Mirtec AOI machines including a new MV-6 OMNI 3D system. I am very pleased with this machine! When we did our 3D AOI research, my team narrowed the field down to 2 vendors, Mirt
Electronics Forum | Tue Sep 11 20:42:16 EDT 2001 | davef
Some folk at Cookson in Rhode Island [US] developed software to answer questions like you appear to be asking. Cookson licensed it to some meatheads in New Jersey that made a total mess of the whole thing. Then, Phil Zarro in New Hampshire got it
Electronics Forum | Tue Jun 15 12:03:27 EDT 1999 | Dave F
| Has anyone had issues where bottomside double reflowed smt has fallen off in the wave when using voc-free flux? I have verified the hotter profile was not the issue by using an alcohol based flux with no problems.This voc-free flux is also not caus
Electronics Forum | Tue Sep 11 19:54:52 EDT 2001 | gsparka
HELLO. SMTNETERS there is no company in high mix low volume system in our contry so . what is the best way to calculate the capa. of smt line in high mix low volume. & what is the general way to get the defect rate to evaluate the smt line(or sm
Electronics Forum | Tue Nov 20 12:48:40 EST 2001 | tony_sauve
We recently experienced a problem w/voids (up to 65%) in uBGA solder joints. The only joints that have the problem correlated to pads which had blind 0.006" via's in them. The via's only extend down 2 layers, of the 18. 21 BGA's on the PCB, only expe
Electronics Forum | Wed May 09 09:54:01 EDT 2012 | swag
We build all our stuff in "kits" as you describe. We don't have much trouble running short on parts at the end although most of our equip. is new which helps a lot. We also have feeders that can run in reverse on set-up stations and we reload parts
Electronics Forum | Tue Oct 12 11:32:22 EDT 2004 | fastek
Stefen- When looking at it from your perspective only it makes no sense to off-shore. The machines and operators are but a small part that goes into the decision to move overseas. The bigger picture is the fact the "entire" operation gets outsourced.
Electronics Forum | Tue May 04 22:54:54 EDT 2004 | davef
Yeh, the IPC courtyards are for old ladies. I want to say that at one time IPC was talking about a new set of rules. Maybe, 7351 - SMT Footprint Design Guidelines??? Anyhow, Jim Blankenhorn at SMTPlus [ sales@smtplus.com ] has done THE best job o
Electronics Forum | Thu Oct 31 11:08:12 EST 2002 | soupatech
Being very new to SMT I won't assume I know what the problem is but.... I had lots of air pockets in solder joints, 95% of the boards. Everyone I spoke to thought it was a problem with my process but when one board was sent to our supplier they admi
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