Well, allow me to make a suggestion, that the US came up with the original idea, in 1947 - the transistor, and has been capitalizing on that ever since. Similar to how Germany had been capitalizing on the invention of combustion engine and various chemical processes for a century. Now, the curve of innovation on top of the fundamental invention (of the transistor) is in the flattening out region, where all the low hanging fruits had been taken down, and now it's about the remaining 5% of polishing - something that the labor force of well fed and comfortable nation is not really motivated to do.