Method of utilizing voltage gradients to guide dielectric breakdowns for non-volatile memory elements and related embedded memories

摘要

A method and related embedded memories are disclosed for utilizing voltage gradients to guide dielectric breakdowns for non-volatile memory elements. Non-volatile memory cells and associated programming methods are also disclosed that allow for the integration of non-volatile memory with other integrated circuitry utilizing the standard CMOS processing used to manufacture the CMOS circuitry. The non-volatile memory cell includes an antifuse element having a programming node and a capacitor coupled to the programming node. The antifuse element includes a MOS transistor having its source and drain connected to one or more voltage levels, having a gate that provides the programming node, and having a dielectric layer that provides an antifuse function by breaking down when subjected to a plurality of voltage pulses applied through the capacitor element. To guide the breakdown locations within the dielectric, one or more voltage gradients are generated within the antifuse element to concentration current flow.