Electronics Forum | Wed Dec 01 23:23:09 EST 2004 | mok
Hi! May I known what is MFNE standard 4226,and MFNE 5229. Regards johnny
Electronics Forum | Thu Jan 30 01:38:22 EST 2014 | m_imtiaz
thank for good input, any documented standard available from any well known body (IPC standard)
Electronics Forum | Tue Jul 25 16:21:20 EDT 2017 | mekmat544
Dear colleagues, I would like to ask you about ESD standard. I would like to know what is difference between ANSI/ESD S20.20 and EN 61340. Which standard we should use? Thank you very much for your answer. Mekmat
Electronics Forum | Tue Mar 26 10:30:28 EDT 2019 | pavel_murtishev
Hello, Could you please tell me if there is any industry standard specifying QFN to PCB standoff after soldering? Is any gap allowed? Browsing IPC-A-610, I have found nothing. Any input would be appreciated. Regards
Electronics Forum | Mon Jul 01 04:50:04 EDT 2019 | sssamw
Yes, No standard.Normally QFN supplier suggest 50-75 um (2-3 mil), but it's very hard to achieve and hard to make consistent stand-off in prodution.
Electronics Forum | Mon Jan 31 20:07:29 EST 2022 | emeto
Thank you both, it is not the good HLA design and this is why the deflection is needed to sit everything properly in the case. We did ask cust0mer(we are CM) to change it, I am just looking for a standard to support our claim.
Electronics Forum | Sat Aug 05 16:04:11 EDT 2017 | mekmat544
Hello davef, thanks a lot for explanation...
Electronics Forum | Thu Mar 28 13:38:35 EDT 2019 | pavel_murtishev
Davef, Thank you for the comprehensive reply. I do really appreciate your help. Regards
Electronics Forum | Wed Jul 03 09:47:39 EDT 2019 | SMTA-Pat
We have seen that vias included in the PCB under the thermal pad will give less voiding.
Electronics Forum | Wed May 16 07:08:23 EDT 2001 | Michael Fogel
We are using press fit connector for some time without any particular visible problems, but still we need some kind of workmanship standard as a general guideline of what is wrong, acceptable and preferred levels for this job. Can someone direct me w
