Patent ID: 9697894
Date: 2017-07-04
CPC Classifications: G11C

Claim:
1. A method of determining a resistance of a memory element, the method including: applying a first current through the memory element and a first selection component, wherein the memory element and the first selection component are located along a memory line, and measuring a first potential difference across the memory line; applying a second current through a second selection component, wherein the second selection component is located along a dummy line, and measuring a second potential difference across the dummy line; and determining the resistance of the memory element based on the first potential difference and the second potential difference; wherein the first selection component is switched on and the second selection component is switched off during a first time period so that a constant current generated by a current source is the first current applied through the memory element and the first selection component to measure the first potential difference; and wherein the first selection component is switched off and the second selection component is switched on during a second time period so that the constant current generated by the current source is the second current applied through the second selection component to measure the second potential difference.