Electronics Forum: stencil (Page 315 of 540)

uBGA (.5mm pitch) printing woes

Electronics Forum | Wed Sep 06 18:19:37 EDT 2017 | slthomas

Hi All, We are being intermittently challenged by a .5mm pitch uBGA paste release issue. We don't build with many of these so don't have a lot of history here. We've gone through 3 different stencil designs and the most consistent performer was 4 m

uBGA (.5mm pitch) printing woes

Electronics Forum | Thu Sep 07 10:18:24 EDT 2017 | capse

Chrys Shea has published extensively on stencil materials, coatings and paste release mechanisms. Many of the papers are available to download on her website. Just search for Shea Engineering Services. I've worked with Chrys in the past, she is defin

QFN84 Solder Printing Issue (QFN with Inner LGA Pad)

Electronics Forum | Fri Dec 01 13:30:08 EST 2017 | kojotssss

Stencil thickness is 4 mil. Via's are plugging from bottom. Gas may be developed under the component? Take Reflow Ovens Thermal Profiling changes? In your opinion?

SMT Stencil Design

Electronics Forum | Fri Feb 16 08:28:54 EST 2018 | emeto

Here is a small part of my collection. If you need anything more specific, please let me know.

SMT Stencil Design

Electronics Forum | Fri Feb 16 10:27:48 EST 2018 | ameenullakhan

Thanks a lot Evtimov, For sharing your collection. Will go through it and write back if any doubts for your help :) Thanks again. Regards, Ameen

SMT Stencil Design

Electronics Forum | Wed Feb 21 02:33:53 EST 2018 | jacson_vu

You can refer this document. Quite detail https://drive.google.com/open?id=1s6xClTX14hUvA3craIeU1Y2zYWyaen6q

SMT Stencil Design

Electronics Forum | Wed Feb 21 04:41:44 EST 2018 | ameenullakhan

Hi Jacson, Thanks for the notes. Please provide the access or share the document. I am not able to access it. Gmail Id : ameenwinner@gmail.com Regards, Ameen

SMT Stencil Design

Electronics Forum | Mon Mar 05 07:53:17 EST 2018 | ameenullakhan

Hi Jacson, Thanks for the notes. I can't access this. Please provide share access to below mail ID ameenwinner@gmail.com Thanks,Ameen

Solder Paste Volume measure in SPI

Electronics Forum | Sun Mar 25 08:49:49 EDT 2018 | jacobidiego

Hi experts, Is it normal that a stencil of 0,1mm would produce 45% solder paste volume being printed over the board? Or is a property linked to the solder paste? thanks in advance

Stencil and PCB Coplanarity measurement

Electronics Forum | Tue Apr 10 16:27:20 EDT 2018 | emeto

Of course, the more accurate the better. However, it might be a challenge to calibrate with really precise one - still better to take your time and do it right. Good luck!


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