Electronics Forum | Wed Mar 10 16:48:13 EST 2021 | rsatmech
Below list based on my observations. Nozzle block Sensor block Insufficient issue in printing Solderability issue due to fod
Electronics Forum | Wed Jul 16 12:13:27 EDT 2014 | deanm
Thank you for your comments so far. I believe I threw some people off by my wording. Clarification: How feasible is it to run a board straight into the reflow oven without inspecting it first for any placement defects? Is nudging parts and performin
Electronics Forum | Thu Jul 10 15:03:57 EDT 2014 | alexeis
Hi, An answer to this question is very complex. The amount of components and their type is only one parameter to determine the level of failure. Additional parameters that can influence are: 1. The density components on the card 2. Machine type and
Electronics Forum | Wed Jul 16 11:57:11 EDT 2014 | markhoch
We're a Tier 1 Automotive Supplier building, what I like to call, Peanut Butter and Jelly Boards. (High Volume, Low Complexity) Our first pass yield, using standard 1st Article Inspection and AOI is about 98-99% on any given day. Last night, for ex
Electronics Forum | Mon Jul 21 12:23:31 EDT 2014 | jimmyboz
As has been pointed out by other well experienced individuals, this is a complex question. But the simple answer is "It is your decision". Choose any goal less than 100% and strive to reach it. There are hundreds of questions to ask before an obje
Electronics Forum | Sat Sep 27 19:41:55 EDT 2014 | cyle
In my office we strive for no retouch prior to reflow, it can be done, you just need your operator to be competent enough to know how to set up your machine correctly. I would say 99% of parts that are misaligned are user error, they are either not
Electronics Forum | Tue Mar 09 20:58:48 EST 2021 | emeto
This have been solved by storing the boards right in all places I have worked. You open a pack, label and use. If you collect dust in such a small time window, you should totally start paying for cleaning service of the building. Electronics we build
Electronics Forum | Thu Oct 21 13:08:38 EDT 2021 | ademrah
Hi, It depends on smallest pitch size of your components. For the 0.3 um, 0.5 um, etc. sizes could be mentioned on Clean Room. For example; for ISO-7 standart (Class 10,000) higher than 5um is not acceptable, however 1mm can acceptable to describ
Electronics Forum | Sun Sep 21 15:48:48 EDT 2014 | gascon5383
Our company has a process standard that requires a double person check at the beginning of every run (size of run is irrelevent, whether 20 panels or 500 panels). Every changeover that occurs a first piece inspection is made before reflow. If all is
Electronics Forum | Wed Jul 16 14:13:17 EDT 2014 | alexeis
Hi, If you can not rely on your programmer and the tools he uses then "double checking" can save you only materials but in time you really do not save often extend meaning. There are things you can identify before the stove, but if you use tools li
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