Memory cell

摘要

Nonvolatile storage with long memory endurance having the advantages of easy manufacturability is obtained by using a memory cell having an information storage element including a ferroelectric material, and operating the memory cell in a volatile operating mode and a nonvolatile operating mode. The option of operating the memory cell in the volatile operating mode enables the associated advantages of high memory speed at long endurance, wherein, however, the option of operating the memory cell in the nonvolatile operating mode can bridge gaps in the power supply.

主权项

1. Memory cell comprising an information storage element comprising a ferroelectric material, wherein the memory cell comprises a volatile operating mode and a nonvolatile operating mode,
wherein the memory cell is implemented to use, in the nonvolatile operating mode, an operating voltage across the information storage element that is increased with respect to the volatile operating mode, such that
in the nonvolatile operating mode, an electric coercive field strength of the ferroelectric material is exceeded, and in the volatile operating mode, the electric coercive field strength of the ferroelectric material is not exceeded, orthe operating voltage across the information storage element in the nonvolatile operating mode results in a saturated polarization hysteresis and in the volatile operating mode only in an unsaturated polarization hysteresis.