Ferroelectric capacitor is a capacitor based on a ferroelectric material. In contrast, traditional capacitors are based on dielectric materials. Ferroelectric devices are used in digital electronics as part of ferroelectric RAM, or in analog electronics as tunable capacitors (varactors).
Schematic of a ferroelectric capacitor
In memory applications, the stored value of a ferroelectric capacitor is read by applying an electric field. The amount of charge needed to flip the memory cell to the opposite state is measured and the previous state of the cell is revealed. This means that the read operation destroys the memory cell state, and has to be followed by a corresponding write operation, in order to write the bit back. This makes it similar to (now obsolete) ferrite core memory. The requirement of a write cycle for each read cycle, together with the high but not infinite write cycle limit is a potential problem for some special applications.
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Ferroelectriccapacitor is a capacitor based on a ferroelectric material. In contrast, traditional capacitors are based on dielectric materials. Ferroelectric...
ferroelectriccapacitors very useful, e.g. for sensor applications. Ferroelectriccapacitors are used in medical ultrasound machines (the capacitors generate...
Ferroelectric RAM (FeRAM, F-RAM or FRAM) is a random-access memory similar in construction to DRAM but using a ferroelectric layer instead of a dielectric...
in the 1950s, barrier layer capacitors, or IEC class 3/EIA class IV capacitors, were developed using doped ferroelectric ceramics. Because this doped...
field, for example ferroelectric materials, so the capacitance for these devices is more complex. For example, in charging such a capacitor the differential...
capacitors may be reversed by heating the component above the Curie point. Class 1 ceramic capacitors and film capacitors do not have ferroelectric-related...
In the late 1980 Ferroelectric RAM was developed, using a ferroelectric thin film as capacitor, connected to an addressing FET. FeFET based memory devices...
memory cell, and dynamic RAM (DRAM), which uses a transistor and a MOS capacitor per cell. Non-volatile memory (such as EPROM, EEPROM and flash memory)...
necessary consequence of ferroelectricity. This can be used to store information in ferroelectriccapacitors, elements of ferroelectric RAM. The most common...
because they are in thermodynamic equilibrium, and thus are used in ferroelectriccapacitors. Although electrets are only in a metastable state, those fashioned...
Ferroelectriccapacitors also exhibit a piezoelectric effect that can be source of audible noise. This phenomenon is known as the "singing capacitor"...
polarization, Relaxor ferroelectrics have high discharge energy density and high discharge rates. BT-BZNT Multilayer Energy Storage Ceramic Capacitors (MLESCC) were...
change its properties. A significant nonlinearity of capacitance capacitor having ferroelectric ceramics materials, so-called varikondy, types of VC-1 VC-2...
are symmetric semiconductor devices with variable capacitance. Ferroelectriccapacitors have a variable capacitance due to hysteresis effects. Diffusion...
It is a ferroelectric, pyroelectric, and piezoelectric ceramic material that exhibits the photorefractive effect. It is used in capacitors, electromechanical...
synthetic quartz and their effects on the vibrational characteristics". Ferroelectrics. 43 (1): 43. Bibcode:1982Fer....43...43I. doi:10.1080/00150198208202002...
A polar metal, metallic ferroelectric, or ferroelectric metal is a metal that contains an electric dipole moment. Its components have an ordered electric...
piezoelectric/ferroelectric materials domains. This is achieved by bringing a sharp conductive probe into contact with a ferroelectric surface (or piezoelectric...
Applications of Ferroelectrics. p. 1. doi:10.1109/ISAF.2008.4693753. ISBN 978-1-4244-2744-4. S2CID 15835472. Müssig, Hans-Joachim. Semiconductor capacitor with praseodymium...
paralleled the growth of new technologies. Examples include: ferroelectrics - high dielectric capacitors, non-volatile memories; ferrites - data and information...
metal-oxide semiconductor/metal-insulator-metal capacitors (MOSCAPs and MIMCAPs), ferroelectriccapacitors and resistive devices, and thermoelectric generators...
the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectric....
polymers and dielectric elastomers. Ferroelectric polymers are a group of crystalline polar polymers that are also ferroelectric, meaning that they maintain a...
fundamental electrical components which also comprises the resistor, capacitor and inductor. Chua and Kang later generalized the concept to memristive...
stage of another pulsed power source, commonly an explosive-driven ferroelectric generator. Discrete component VIGs (pictured) consist of a stack of...
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