Patent ID: 7943437
Filing Date: 2011-05-17
Classification: H01L,Y10T

Abstract:
1. A method of making an electronic fuse blow resistor structure, comprising: forming an insulator film; depositing a layer of conductor directly on the insulator film; after the depositing, etching the layer of conductor to form a plurality of spaced apart non-conductive regions and a plurality of spaced-apart conductive regions; and forming a fuse resistor structure including fuse leads formed on top of respective ends of the conductive regions, wherein the non-conductive regions and the conductive regions are arranged on a same layer, wherein the conductive regions comprise conductive strips which direct current flow along discrete paths distributed across a top of the insulator film, wherein the fuse resistor structure changes in resistance based on a number of the conductive regions that are blown, wherein the insulator film comprises a polysilicon film, wherein the fuse resistor structure provides for resistance that undergoes step changes based on the number of the conductive regions that electrically fail, and wherein the insulator film comprising the polysilicon film satisfies: where V is voltage, r is resistance, T