Electronics Forum | Mon Apr 15 21:55:46 EDT 2002 | ianchan
Hi Clark, Out of curiousity and in the name of learning new stuff, can you share with us how does your team, calculate the cost of inspection? Is inspection an additional chargable item in the quotation sheet? To quote your posting : "Just a side n
Electronics Forum | Mon Jun 10 01:08:21 EDT 2002 | Ken Bliss
In response to the original question, �Does anyone know what the industry standards are for machine utilization on a SMT line or across a shop floor?� Ceeris International published a report showing an industry average of 52% utilization of staffed
Electronics Forum | Mon Jun 10 01:25:25 EDT 2002 | Ken Bliss
By centralizing to your stockroom all your feeder setups so that one team is assigned to just that, to keep all your 7 lines up and running will reduce the amount of personnel you need and increase throughput. Keep in mind a key factor. The bottlen
Electronics Forum | Fri Jun 21 15:04:51 EDT 2002 | bentzen
Hi Greg. FujiCam has two ways of calculating the placement coordinate for a component. - The "FujiCam/Unicam way": calculating component origo as the center of the designed component pads. - Use the PCB designers part origo which could be center of
Electronics Forum | Mon Mar 03 11:06:13 EST 2003 | msivigny
Hi floydl, I completely understand when it comes to data crunching after long hours of performing measurements, it's the last and most important arduous task in obtaining performance data. If a measurement and evaluation process that traditionally to
Electronics Forum | Thu Mar 06 12:15:00 EST 2003 | msivigny
Hello Dave, First you must make sure your measurement system is calibrated for accuracy, repeatability and reproducibility. We perform a standard GR&R Study on our CmController system on a regular basis to ensure that the system itself is capable to
Electronics Forum | Mon May 26 08:02:11 EDT 2003 | davef
Resistance: Tables of wire gauge often provide a resistance measure of some kind for each gauge. That way we can estimate the resistance of any length of wire we might be interested in. Calculating trace resistance is only slightly more complicated.
Electronics Forum | Wed Jun 04 20:09:01 EDT 2003 | stefwitt
The tact time is determined by the slowest machine in the line. In your case it is 4.5 min. This is the time from the board leaving the output conveyor sensor to the next board leaving the sensor. The first machine, which finishes the job in 3 min. h
Electronics Forum | Wed Aug 25 19:35:48 EDT 2004 | russ
This is highly dependent upon your board, vision inspection, part rotation, part type, layout, number of P/Ns per (1 pers or 100 pers) feeder layout, optimization, nozzle changes, etc... all have significant impact on placement speed. I find if you
Electronics Forum | Mon Jan 29 16:04:29 EST 2007 | BillW
Thanks Russ and John, To clarify defects when manufacturing a PCBA, I use (2) groups of defect categories, one for components and one for solder joints. These can be calculated separately or combined A component defect could be: Missing, Miss-alig
