Electronic device and method for fabricating the same

摘要

Provided is an electronic device including a semiconductor memory which includes a first region in which a first variable resistance element for storing data is disposed; and a second region in which a reference resistance element for sensing data stored in the first variable resistance element is disposed, and wherein the reference resistance element comprising: a plurality of second variable resistance elements formed of the same material at the same level as the first variable resistance element; a plurality of contacts coupled to each of the second variable resistance elements; and a first pad coupled to part of the contacts which are coupled to one of two adjacent second variable resistance elements and part of the contacts which are coupled to the other of the two adjacent second variable resistance elements for coupling the two adjacent second variable resistance elements with each other.

主权项

1. An electronic device comprising a semiconductor memory which comprises:
a first region in which a first variable resistance element structured to exhibit different resistance states for storing data is disposed; and a second region in which a reference resistance element for sensing data stored in the first variable resistance element is disposed, and wherein the reference resistance element includes: a plurality of second variable resistance elements formed of the same material at the same level as the first variable resistance element, wherein the second variable resistance elements are coupled to provide a reference in resistance, without exhibiting different resistance states, in sensing a resistance of the first variable resistance element to determined stored data in the first variable resistance element; a plurality of contacts coupled to each of the second variable resistance elements; and a first pad to couple two adjacent second variable resistance elements with each other so that the first pad is coupled to a part of the contacts which are coupled to one of the two adjacent second variable resistance elements and a part of the contacts which are coupled to the other of the two adjacent second variable resistance elements.