To engrave the chips at increasingly small definition is an enormous challenge for the factories that fabricate the processors. In this world, there is Intel whose resources are, on this scale, practically infinite and who engrave themselves chips in 32 nm en masse whereas the others still have big problems to engrave at 40 nm. For a long time this has been the misfortune of TSMC, the largest specialized foundry of chips, who have not managed for a long time to achieve a yield of more than 40% of working products from each wafer.However things now seem to be better. The breaking news is that the yield has now gone back to 70%. This should put an end to the shortage of 40 nm graphics cards that has been known from AMD with the launching of its Radeon HD5xx0. Incidentally, the improvement of the manufacture of these chips should now allow many other chip designers who do not have their own factories to start chip production too. It will be perhaps be the case for Apple that some people like to speculat
