Electronics Forum: top ten tombstone (Page 1 of 6)

Too much solder paste cause tombstoning?

Electronics Forum | Tue Nov 28 07:55:58 EST 2006 | davef

Too much solder paste is NOT in our "Top Ten Causes of Tombstoning". Try: * Searching the fine SMTnet Archives for background * Looking here: http://www.efdsolder.com/PDF/EFD-Tombstone-Troubleshooting.pdf We have no relationship, nor receive benef

SMD ASSEMBLY & TEST EBOOKS NEEDED

Electronics Forum | Thu May 29 00:26:58 EDT 2008 | bobwillis

Bob Willis' Top Ten Reference Books Here is a new list of "Bob Willis' Top Ten" reference books that has been updated for 2007 to take into account recent changes in technology. In the publishing industry there are many charts and awards for the bes

Old m/c

Electronics Forum | Fri Mar 14 14:32:09 EDT 2008 | soudomphong

Is it a good investment to keep machine over ten years old or maybe even older? My job is to keep these machine in tip top shape but very little money to spend on parts. Which is better buying spare part or buying new machine?

smt operator looking for work!

Electronics Forum | Mon Feb 16 12:22:50 EST 2009 | cyber_wolf

I definitely agree with the spell check and 8 companies in ten years. That makes my left eye brow raise as I look over-top my glasses.

Tombstone 0402 Caps......

Electronics Forum | Tue Jun 14 18:37:18 EDT 2005 | GS

On top to above suggestions,Round pad designe (where possible to get) helps to solve tombstoning pbm. Regards GS

CP4-2

Electronics Forum | Tue Dec 14 14:49:57 EST 1999 | Larry Johnson

Okay, I have recently found tiny little ball bearings in side our CP4-2. Some have even been reported by operators to be found on top of the PCB while it is running. We have found about ten total so far, any ideas of where these would be comming fr

Design Guides

Electronics Forum | Wed Jul 22 09:58:02 EDT 1998 | LeeAnne

I'm trying to put together a set of design guides for use for new designers in house or to be sent out for contracted layout work. I would like to start with a top ten list of things that will go wrong if rules aren't available. For example testpoint

Solder Joint

Electronics Forum | Mon Jan 29 17:25:10 EST 2007 | darby

I'm confused, How can your customer possibly EXPECT a fillet if the pad is smaller than the part? I thought everyone was over the whole toe fillet thing many years ago. Wasn't there some papers from NASA nearly ten years ago that advocated the "less

Tombstoning 0306's

Electronics Forum | Sun Sep 11 05:48:32 EDT 2005 | Mika

If 0 or 180 degr. make v-shape openings to each other left & riht, if 90 or 270 degr. top/ bottom, on the stencil apertures; well, you understand... We use this and 87 % reduction of stencil apertures for 0603:s and 0402:s. 0.127 mm stencil thicknes

Reflow Oven

Electronics Forum | Tue Aug 13 10:39:50 EDT 2019 | sankarseptember

We are using Wertheim SMT Reflow oven.We are facing component drop issue from bottom side while top side is running. The drop components is diode,3 pin transitor which not even too heavy..We are also getting tombstone in bottom side Chip capacitor wh

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