Looks like more money offered per share isn't necessarily a better deal.
This merger is very interesting IMO, between ON Semi and Fairchild Semi, considering Infineon is number in Power Semiconductors.
Also, with Poet's ties to Fairchild Semi - makes for some speculations.
http://www.marketwatch.com/story/fairchild-semi-turns-down-higher-buyout-bid-to-stick-with-on-semiconductor-deal-2015-12-14