What is FeRAM (ferroelectric RAM)?
Nonvolatile memory that stores information in the polarization direction of a ferroelectric. Writes are fast and low-power, and it is used in IC cards and the like.
Field: Emerging memories
FeRAM (ferroelectric RAM) in the explanations
FeRAM uses the remanent polarization of ferroelectrics—polarization that persists after the voltage is removed—storing 0 or 1 in its direction.
Which property does FeRAM (ferroelectric memory) use to sto…Traditional PZT contains lead and degrades when thinned, complicating CMOS integration, whereas HfO2-based films can be deposited thin and uniform by ALD, promising FeRAM and FeFETs embedded with advanced logic.
Which ferroelectric material, compatible with CMOS processe…A capacitor-type FeRAM reads by applying voltage to the cell and sensing, from the charge released onto the bit line, whether the polarization flips.
Which correctly describes reading in capacitor-type FeRAM?
Questions that mention FeRAM (ferroelectric RAM) (9)
- Which property does FeRAM (ferroelectric memory) use to store information?
- Which ferroelectric material, compatible with CMOS processes, has recently attracted attention for FeRAM and ferroelectric transistors (FeFETs)?
- Which correctly describes reading in capacitor-type FeRAM?
- Which is a typical application in which FeRAM has been used?
- What does the "Fe" in FeRAM stand for?
- Why are MRAM and FeRAM sometimes used in high-radiation environments such as space equipment?
- In general, which memory has the fewest possible rewrite cycles?
- On the hysteresis loop (polarization versus electric field) of a ferroelectric, what is the polarization that remains when the field returns to zero called?
- Which device uses the fact that the tunneling current through a thin ferroelectric layer depends on the direction of its polarization?
Related terms
MRAM ReRAM (resistive RAM) CMOS ALD Bit line PCM (phase-change memory) 3D XPoint Chalcogenide Cross-point memory Electroforming