Importance

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Abstract

A memory cell as described herein includes a conductive contact and a memory element comprising programmable resistance memory material overlying the conductive contact. An insulator element extends from the conductive contact into the memory element, the insulator element having proximal and distal ends and an inside surface defining an interior. The proximal end is adjacent the conductive contact. A bottom electrode contacts the conductive contact and extends upwardly within the interior from the proximal end. The memory element is within the interior extending downwardly from the distal end to contact a top surface of the bottom electrode at a first contact surface. A top electrode can be separated from the distal end of the insulator element by the memory element and contact the memory element at a second contact surface having a surface area greater than that of the first contact surface.

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First Claim