Emerging memories

Which correctly describes reading in capacitor-type FeRAM?

  1. AIt is a non-destructive read that does not change the data
  2. BReading requires ultraviolet light
  3. CData is read according to whether the polarization switches, so the read is destructive and data must be rewritten afterward
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Answer: C. Data is read according to whether the polarization switches, so the read is destructive and data must be rewritten afterward

In capacitor-type FeRAM, a voltage is applied and the stored content is determined by whether the polarization switches. If it switches, the original data is lost, so it is rewritten after the read. Like DRAM, the read is destructive, but the data is retained in a non-volatile way.

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More Emerging memories questions

  1. Which material is widely used as the tunnel barrier in MRAM magnetic tunnel junctions (MTJs) and gives a large tunnel magnetoresistance ratio?
  2. In ReRAM, what is the initialization step called in which a relatively high voltage is first applied to form a conductive filament?
  3. Which is a characteristic of SOT-MRAM?
  4. Which is one reason MRAM is attracting attention as embedded non-volatile memory for microcontrollers and similar chips?
  5. In MRAM, what problem tends to arise if the storage element (MTJ) is made too small?