Patent ID: 8628981
Filing Date: 2014-01-14
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device comprising: forming a ferroelectric capacitor above a semiconductor substrate; forming a first insulating film covering the ferroelectric capacitor; forming a contact plug in the first insulating film; forming a second insulating film on the contact plug and the first insulating film; forming a first opening reaching an electrode of the ferroelectric capacitor in the first insulating film and the second insulating film; performing recovery annealing of the ferroelectric capacitor after forming the first opening; forming a conductive plug in the first opening after performing the recovery annealing; forming a third insulating film covering the second insulating film and the conductive plug; forming a second opening smaller than the first opening in the third insulating film, the second opening reaching the conductive plug; and forming a wiring connected to the conductive plug electrically via the second opening on the third insulating film.