Reducing disturbance in crossbar array circuits
AssigneeTetraMem Inc.
InventorNing Ge
Life of this patent
Estimating the term…
Abstract
A crossbar circuit is provided. The crossbar circuit includes one or more bit lines, one or more word lines, one or more cell devices connected between the bit lines and the word lines, one or more analog-to-digital converters (ADCs) connected to the one or more bit lines, one or more digital-to-analog converters (DACs) connected to the one or more word lines, one or more access controls connected to the one or more cell devices and configured to select a cell device in the one or more cell devices and to program the selected cell device, and a slew rate controller connected to the one or more bit lines. The first slew rate controller is configured to receive an input signal or a bias and output a slew-rate controlled signal.
Claims9
A crossbar array circuit, comprising:
- one or more bit lines;
- one or more word lines;
- one or more cell devices connected between the bit lines and the word lines, wherein each of the cell devices comprises a Resistive Random-Access Memory (RRAM) device;
- one or more analog-to-digital converters (ADCs) connected to the one or more bit lines;
- one or more digital-to-analog converters (DACs) connected to the one or more word lines;
- one or more access control devices connected to the one or more cell devices through the one or more bit lines and configured to select a cell device in the one or more cell devices and to program the selected cell device;
- a first slew-rate controller connected to the one or more bit lines, wherein the first slew-rate controller is configured to receive an input signal or a bias and output a first slew-rate controlled signal to the one or more bit lines;
- and
- a second slew-rate controller connected between the one or more DACs and an input register, wherein the second slew-rate controller is configured to receive a signal from the input register and output a second slew-rate controlled signal to the DACs, and wherein the one or more DACs provide a voltage corresponding to the second slew-rate controlled signal to a word line of the one or more word lines that is connected to the selected cell device.
Dependencies are inferred from the claim text.