Electronics Forum: designation (Page 156 of 538)

Possibility of a cheaper pick and place machine design?

Electronics Forum | Thu Jul 10 15:12:35 EDT 2014 | alexeis

Hi, Nice idea but it requires care electromagnetic induction. Thus, if a product sensitive electromagnetic field then the solution will cause shorts in a PCB and even disconnect signals. Best Regards, Alexei

Possibility of a cheaper pick and place machine design?

Electronics Forum | Thu Jul 10 20:30:07 EDT 2014 | andrespena

@Comatose You answered all my question about the board and operator costs, and I'm getting a good idea of how the numbers look like.

Possibility of a cheaper pick and place machine design?

Electronics Forum | Wed Jul 16 19:49:50 EDT 2014 | andrespena

My gut feeling is that I should do more than just post it here... the suggestion will ultimately be forgotten. Does anyone know where on the internet I should actually post something like this?

Possibility of a cheaper pick and place machine design?

Electronics Forum | Thu Aug 07 14:37:00 EDT 2014 | eugene_em

Why use magnets? I found a KS project of a pcb prototyping machine that uses vacuum for PnP. Here is a video https://www.kickstarter.com/projects/botfactory/squink-the-personal-electronic-circuit-factory/posts/929661

Step Stencils

Electronics Forum | Wed Aug 27 15:53:05 EDT 2014 | smtdoug

I always put the step on the squeegee side. You'll get some "shadowing" effect on any parts in close proximity to the stepped up region. It should be manageable with proper board / stencil design.

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

Electronics Forum | Wed Jul 30 12:25:38 EDT 2014 | emeto

Yes, but I have seen designs where the whole row of leads has no mask(which is also a NSMD)

Printing on a pallet

Electronics Forum | Thu Aug 21 06:30:32 EDT 2014 | karolis

We are running mainly aluminum boards and lots of them are not square shaped. You can panelize any shape board, you need just add little routing to your panel design. I attached one picture with panelization example (routing and V-cut mixed).

BGA

Electronics Forum | Mon Dec 22 22:05:42 EST 2014 | slouis2014

What could be the possible solution for shorted BGA but only appears on the component corners. The BGA is 18mm x 18mm in size.The component solder balls are within specs and the pad design for the BGA is with standard. How can I solve this problem

PCB profiling

Electronics Forum | Mon Feb 16 13:03:13 EST 2015 | dyoungquist

A good resource for implementing a BGA assembly process is: IPC-7095C Design and Assembly Process Implementation for BGAs Lots of valuable information in that publication.

Encapsulating prior to Potting

Electronics Forum | Wed Feb 25 12:01:15 EST 2015 | jasonnova

Welcome to the world of Contract Manufacturing. Unfortunately there is not an opportunity for redesign. This is a growing customer that we are training to involve us during the design stage to avoid production issues like this. The customer would


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