Patent ID: 9105744
Filing Date: 2015-08-11
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, the method comprising: providing a fin-shaped workpiece, the workpiece comprising a first semiconductive material; forming a plurality of active fin field effect transistors (FinFETs) over the workpiece, each of the plurality of electrically active FinFET structures comprising a gate extending over the workpiece; forming a plurality of electrically inactive FinFET structures over the workpiece proximate the plurality of active FinFETs, each of the plurality of electrically inactive FinFET structures comprising a gate extending over the workpiece, the gates of the inactive FinFET structures being physically separated from the gates of the active FinFET structures to which it is proximate; wherein a portion of the workpiece between the gates of the active FinFET structures and gates of the inactive FinFET structures is recessed, and at least partially filling the recessed portion of the workpiece between the gates of the active FinFET structures and gates of the inactive FinFET structures with a second semiconductive material.