Ferroelectric RAM (FeRAM, F-RAM or FRAM) is a random-access memory similar in construction to DRAM but utilizing a ferroelectric layer instead of a dielectric layer to achieve non-volatility. FeRAM is one of a growing number of alternative non-volatile random-access memory technologies which can offer that same functionality as flash memory.
FeRAM consists of a grid of small capacitors and associated wiring and signling transistors. Each storage element, a cell, consists of one capacitor and one transistor. Unlike the DRAM use a linear dielectric in its cell capacitor, dielectric structure in the FeRAM cell capacitor usually contains ferroelectric material, typically lead zirconate titanate (PZT).
A ferroelectric material has a nonlinear relationship between the applied electric field and the apparent stored charge. The ferroelectric characteristic has the form of a hysteresis loop, which is very similar in shape to the hysteresis loop of ferromagnetic materials. The dielectric constant of a ferroelectric is typically much higher than that of a linear dielectric because of the effects of semi-permanent electric dipoles formed in the crystal structure of the ferroelectric material. When an external electric field is applied across a dielectric, the dipoles tend to align themselves with the field direction, produced by small shifts in the positions of atoms and shifts in the distributions of electronic charge in the crystal structure. After the charge is removed, the dipoles retain their polarization state. Binary "0"s and "1"s are stored as one of two possible electric ...
Table of Contents
1 Market Overview
1.1 Ferroelectric RAM Introduction
1.2 Market Analysis by Type
1.2.1 Serial Memory
1.2.2 Parallel Memory
1.3 Market Analysis by Applications
1.3.1 Smart Meters
1.3.2 Automotive Electronics
1.3.3 Medical Devices
1.3.4 Wearable Devices
1.4 Market Analysis by Regions
1.4.1 North America (United States, Canada and Mexico)
126.96.36.199 United States Market States and Outlook (2014-2024)
188.8.131.52 Canada Market States and Outlook (2014-2024)
184.108.40.206 Mexico Market States and Outlook (2014-2024)
1.4.2 Europe (Germany, France, UK, Russia and Italy)
220.127.116.11 Germany Market States and Outlook (2014-2024)
18.104.22.168 France Market States and Outlook (2014-2024)
22.214.171.124 UK Market States and Outlook (2014-2024)
126.96.36.199 Russia Market States and Outlook (2014-2024)
188.8.131.52 Italy Mark ...