Ferroelectric capacitor and its hysteresis curve adjustment method

摘要

The present invention relates to a ferroelectric capacitor and a method of adjusting a hysteresis curve of the ferroelectric capacitor, and more particularly, to a ferroelectric capacitor and a method of controlling the hysteresis curve of the ferroelectric capacitor by controlling the hysteresis curve by unevenly varying the thickness and / It is possible to easily obtain a hysteresis curve for obtaining a polarization and a coercive voltage, to shorten the time required for finding a ferroelectric structure having a predetermined hysteresis characteristic, and to change the structure of the ferroelectric capacitor more variously, Ferroelectric capacitor and its hysteresis curve adjustment method which can broaden the selection width of the design when applied to FRAM.