Patent ID: 9142537
Filing Date: 2015-09-22
Classification: H01L

Abstract:
1. An integrated circuit device comprising: a plurality of fins formed on an upper surface of a semiconductor substrate and extending in a first direction; a plurality of wide fins formed on the upper surface of the semiconductor substrate, extending in the first direction, and having a wider width than the fins; a device isolation insulating film placed between the fins and the wide fins; a gate electrode extending in a second direction crossing the first direction and provided on the device isolation insulating film; and an insulating film insulating the fins and the wide fins from the gate electrode, in a first region where a part of the fins are arranged, an upper surface of the device isolation insulating film being located at a first position below upper ends of the fins, and in a second region where the wide fins and an other part of the fins are arranged, the upper surface of the device isolation insulating film being located at a second position above the upper ends of the fins, and in the second region, the device isolation insulating film covering entirely a side surfaces of the other of the fins.