Patent ID: 7772582
Filing Date: 2010-08-10
Classification: H01L

Abstract:
1. A method of fabricating a reconfigurable device, the method comprising the steps of: providing a substrate; forming a first dielectric layer on the substrate; forming a conductive layer recessed into at least a portion of a side of the first dielectric layer opposite the substrate; depositing a second dielectric layer over the side of the first dielectric layer opposite the substrate, so as to cover the conductive layer; forming a heater on a side of the second dielectric layer opposite the first dielectric layer; depositing a third dielectric layer over the side of the second dielectric layer opposite the first dielectric layer so as to surround at least a portion of the heater; forming at least one programmable via extending through the second and third dielectric layers, extending through and surrounded by the heater and in contact with the conductive layer, the programmable via comprising at least one phase change material; forming a capping layer over the programmable via; forming a first conductive via and a second conductive via each extending through the third dielectric layer and in contact with the heater; and forming a third conductive via extending through the second and third dielectric layers and in contact with the conductive layer.