Link says it all:
http://www.businessinsider.com/the-economy-sucks-2011-4
The problem with the stimulus is that rather than cutting taxes and taking a deficit hit for lower revenues to be recovered from new business, the Obama Administration and Congress chose to go an orgy of spending, on earmarks, rewards for special interests that had no payback except campaign donations and "investments' in things like public education and keeping government employees working which provided no returns. This at a point where the semiconductor economy was running out of steam and new capital is desperately need for the required investments in the next big thing.