Abstract
This report discusses the electrical characteristics of two-terminal synaptic memory devices capable of demonstrating an analog change in conductance in response to the varying amplitude and pulse-width of the applied signal. The devices are based on Mn doped HfO2 material. The mechanism behind reconfiguration was studied and a unified model is presented to explain the underlying device physics. The model was then utilized to show the application of these devices in speech recognition. A comparison between a 20 nm × 20 nm sized synaptic memory device with that of a state-of-the-art VLSI SRAM synapse showed ∼ 10 × reduction in area and >106 times reduction in the power consumption per learning cycle.
Original language | English (US) |
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Article number | 5333 |
Journal | Scientific reports |
Volume | 4 |
DOIs | |
State | Published - Jun 18 2014 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General