Electronics Forum: qfn and vias (Page 10 of 17)

Trouble loading a program on Amistar 5630 and 5720

Electronics Forum | Mon Jun 12 10:46:37 EDT 2006 | mhanc

I am trying to help a customer with a problem. His Process Tech is out and the operator is trying to load a program via floppy. When trying to load on the Amistar 5630 the following errors occur: Data Type Error (level.4) we continue to load and

IPC Class 3 Annular Ring and Fine Pitch BGA Challenges

Electronics Forum | Mon Oct 09 06:16:31 EDT 2017 | jamesbarnhart

I think you needed an IPC Class 3 annular ring because for very dense designs, the smaller the annular ring the better, as less space is taken by the pad or via and more space can be dedicated to routing the traces in highly populated areas of the bo

IPC-6012F 2023 EN,Qualification and Performance Specification for Rigid Printed Boards

Electronics Forum | Wed Jan 03 17:37:16 EST 2024 | davef

IPC Releases IPC-6012F, Qualification and Performance Specification for Rigid Printed Boards Changes address advances in rigid printed board fabrication processes Oct 18, 2023 [https://www.ipc.org/news-release/ipc-releases-ipc-6012f-qualification-and

Re: SMT training classes and start up equipment

Electronics Forum | Tue Jun 23 11:23:25 EDT 1998 | Russ Miculich

You have addressed two separate issues. We are stencil printer manufacturers and equipment choices can be a real tricky and frustrating proposition if not prepared with training and understanding of the process first. I would heartily encourage you

environment Operational deg-C and RH% for Paste Printer

Electronics Forum | Thu Jun 06 21:35:22 EDT 2002 | ianchan

Hi mates, 1) Firstly, thanks for everyone's reply to this thread. Cheers! 2) Secondly, Hussman69: sure u dun mean that blokes' tie was too tight? musta cut off his blood flow and oxygen?!? 3) Thirdly, we checked with our paste supplier, and they r

Possibility of a cheaper pick and place machine design?

Electronics Forum | Sun Aug 31 16:16:37 EDT 2014 | spoiltforchoice

Andres, I think if you were to understand the process a little better you would realise the many many problems you would encounter building even very simple things using your method. Even 30 minutes watching Youtube videos of current machines might h

Possibility of a cheaper pick and place machine design?

Electronics Forum | Thu Sep 11 10:01:30 EDT 2014 | spoiltforchoice

1 - Too messy, parts already come in nice easy to use machine compatible packaging, tapes, reels, tubes and trays. All you are doing is adding an extra step and complication. A key production aim is to reduce the number of steps. 2 - BGA - a chip wi

Pick and Place Startup - LQPF100 bridging issues

Electronics Forum | Thu Mar 25 09:38:36 EDT 2021 | spoiltforchoice

Well everything Graham said with some additional points.. You mention manual printing but very little about your stencil or setup. Everything you have said indicates a very limited budget has been expended, however what you have is an extreme exampl

How important NSMD pads are for the QFN and similar packages?

Electronics Forum | Wed Jul 30 00:47:10 EDT 2014 | matusov

Hello gurus, I am a hardware designer with a small company. We are about to send a new PCB for fabrication. This board uses dozens of tiny QFN, DFN, and similar packages. As a final check I have been going through the datasheets of all these parts t


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