Electronics Forum | Mon Jun 05 14:09:36 EDT 2000 | Jason
We would like to gauge or precentage of production line failures to industry standard AQL level. What would be an acceptale AQL level for assembled pcb's or finished units leaving the factory?
Electronics Forum | Wed Jan 12 07:22:10 EST 2005 | cyber_wolf
We seem to have an accountability issue when it comes to operators building defective product. Currently we are putting a piece of masking tape with the assembly #, work order, and operator initials on our black trays at the end of the reflow oven. I
Electronics Forum | Wed Jun 14 20:05:51 EDT 2000 | Raeto Zryd
Hi Jason, Zero defect is the only acceptable quality!! U need to ask yourself how capable is your process and how well is you quality system set up. No point in setting goals unatainable or beeing forced upon by management if the root problems of th
Electronics Forum | Fri May 24 09:34:57 EDT 2013 | markhoch
I run the same profiles for Top and Bottomside assemblies for all of my products. Only in rare instances have I been forced to run a profile with cooler bottom zone settings. This was obviously driven by assemblies with heavier components on the bott
Electronics Forum | Fri May 24 19:18:03 EDT 2013 | hegemon
The formula is a great help, where was it 20 years ago? LOL After running a few thousand different products over the years, you start to get a feel for what is going to be trouble with regards to falling off the bottomside during the secondary refl
Electronics Forum | Mon Apr 03 02:09:58 EDT 2017 | soldertraining
Restriction of Hazardous Substances (RoHS) bans products that contain a high level of hazardous materials from entering the market like the EU market. If we talk about PCB products - The printed circuit board services – including both conventional an
Electronics Forum | Tue Sep 13 01:52:53 EDT 2011 | SheanDalton
My recollection is that RoHS limits for lead is 0.1% of the weight of any homogeneous material in the assembly.
Electronics Forum | Wed Aug 16 03:04:50 EDT 2000 | rberry
Hi Does anyone have a tried and tested method of estimating the mass of solder paste that will be used for an SMD assembly given only the type and quantity of components used. (As well as type of paste, stencil thickness etc) In other words is there
Electronics Forum | Mon Aug 31 12:37:39 EDT 2009 | rocko
Hi All, As a result of equipment damage I have a problem with a cleanliness of printed circuit assemblies. One whole production batch was polluted by ionic residues because a large amount of hard water had been penetrated in the water-supply system
Electronics Forum | Wed Sep 02 02:45:01 EDT 2009 | rocko
Hi All, Let me summarize the key facts and findings: 1) This is not a permanent problem. Only one production batch was affected. The cleaning solution was exchanged and now the cleaning process runs normally. 2) Probably the residues are not ion
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