Patent ID: 7507607
Filing Date: 2009-03-24
Classification: H01L

Abstract:
1. A method of forming an anti-fuse on a first semiconductor material of a first conductivity type, the method comprising: forming a well in the first semiconductor material, the well having a surface and a second conductivity type; forming a layer of insulation material on the surface of the well; removing a first portion of the layer of insulation material to expose a first region on the surface of the well, and a second portion of the layer of insulation material to expose a second region on the surface of the well; forming a layer of second semiconductor material on the layer of insulation material, the first region, and the second region; etching the layer of second semiconductor material to form a first section and a second section; and removing the layer of insulation material between the first and second sections to expose a third region on the surface of the well.