Intel (INTC) chips Nearly a third of Oregon's labor force comes from manufacturing. That's just about the highest percentage in the country, and it owes a whole lot of the credit to Intel's factory just outside of Portland in Hillsboro. In fact, the Hillsboro plants and factories in California and Arizona produce more than 75% of the company's processors. Considering that 75% of Intel's processors then head overseas, Intel is doing its part to balance out the trade deficit a bit. It also seems to have convinced its overseas rivals that the U.S. is fertile ground for microprocessor production, as rival Samsung began producing its A5 chip for Apple's ( AAPL) iPhone and iPad at a factory in Austin in 2011.