Electronics Forum: product design (Page 7 of 115)

Do you allow manufacturer changes to your PCB design?

Electronics Forum | Mon Dec 02 00:43:34 EST 2019 | luciano_zhang

The problem is they said what we designed is not qualifyed for production and they have files called "DFM" which is used for the real production to fit with the production line

Re: Stencil printers, what's really out there?

Electronics Forum | Wed Feb 23 15:24:24 EST 2000 | Michael Uganecz

Steve, Give MPM/Speedline a call and see if they still sell the SPM-AV, it's a shuttle style printer with vision alignment. It has a really nice auto-align vision system that will move the table in x,y and theta. It's not a look up/look down syste

Re: Stencil printers, what's really out there?

Electronics Forum | Wed Feb 23 15:24:24 EST 2000 | Michael Uganecz

Steve, Give MPM/Speedline a call and see if they still sell the SPM-AV, it's a shuttle style printer with vision alignment. It has a really nice auto-align vision system that will move the table in x,y and theta. It's not a look up/look down syste

Complexity Index of PCB for characterising reflow profiles

Electronics Forum | Mon Aug 11 20:50:44 EDT 2003 | davef

Our old friend Bob Willis posted at his site [ http://www.bobwillis.co.uk ] a document that may be a good starting point. In the "Download" section, look for "New Product Design Evaluation Form (Word.doc file)". Certainly the number of solder connec

Multi-part reeling for pick and place

Electronics Forum | Sun Jul 18 14:01:25 EDT 2004 | KEN

Unfortunately, smt machines are not like TH sequencers. But, that is in their favor. Multiple reels, multiple part types, many positions = very flexible. Offline setup is paramount to line utilization. Remember, you only make money when the machi

Glue Stencil Design Guidelines

Electronics Forum | Fri Aug 30 13:12:00 EDT 2002 | Mark Ross

Can anyone recommended any good books and/or articles relating SPECIFICALLY to stencil design for high speed production whereby adhesives will be stencil printed onto a PWB? The IPC document covering stencil design is not specifica at all. I know t

BGA rework

Electronics Forum | Thu May 06 18:48:22 EDT 2004 | Dreamsniper

SUMMIT 750. My yield is 75%-98%. And they all depend on the pad design, stencil, paste, operator, thermal profile, etc. I have 98% yield on some of our products with good pad design. Process is easy to control. Dreamy

One of a kind!

Electronics Forum | Wed May 25 17:17:45 EDT 2005 | Nicholas Anderson

Hello all!! I currently have this thought, of maybe producing my very own type of feeders. Say juki,panasonics,etc. but building,design,and production of my own. What would be preventing me from doing so? Let's say i wanted to build a Fuji CP-4 feed

Hardware Torque requirements

Electronics Forum | Wed May 16 14:33:36 EDT 2001 | John

The size/type of screw and its preloaded torque are determined by the type and intensity of the load being applied to it. This should be known or estimated by the engineer that designed the product. Then they'll typicly apply a large safety factor

Re: Attending the IPC/SMTA Electronics Assembly Expo?

Electronics Forum | Fri Sep 18 15:54:31 EDT 1998 | Brian Stumm

I hope everyone who replies will do so on the forum as well. I have been considering attending this show too but there are so many trade shows (as a reflow manufacturer you must consider world wide as well) it is hard to select which are the best and


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