Processor Manufacturers Do The Big 2 Processor Manufacturers Have To Share Major Technological Advancements With Each Other?

Do the big 2 processor manufacturers have to share major technological advancements with each other? - processor manufacturers

If Intel shows how changes in the 45 nm transistor gate dielectrics to high-need be achieved to this with AMD shares? I'm eager to see how to survive the competition, if other companies would make moving into unknown territory, there are still many mysteries in the world of technology, or created by other companies buy patents and technology implimented there for their own use .