Quote Originally Posted by god_43 View Post
wasn't it a problem with the equipment? the process itself is/was sound right?
there were rumors of electromigration issues in the vias (via defects are actually fairly common.) but that was even before evergreen launched. this is the only rumor i heard and defect density has been good so yields are not an issue as long as the chip is designed well.

40nm has gotten a bad rep mostly because of the blame game. they did undershoot capacity by a lot but that happens a lot and it would have been extremely risky to invest more into 40nm with the way the economy was doing. almost every analyst had a gloomy forecast for the IC market so they played it safe.