There was a question a few days ago on cures for tombstoning.

One of the simplest but effective cures that we've found to help with this 
problem, at least for 0805 and 0603's, is to design the spacing between pads 
to be .020".
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Jeffery L. Hempton                     Phone: 219-429-7335
Mail Stop:25-31  Fax:   4688  Email: [log in to unmask]
MESC (Magnavox),1313 Production Road, Fort Wayne, IN 46808

"And the men who hold high places, must be the ones who start,
  To mould a new reality, closer to the heart.
Philosophers and Ploughmen, each must know his part,
  To sow a new mentality, closer to the heart."--Rush-A Farewell to Kings.