Lam Research Corporation
RESISTIVE RANDOM ACCESS MEMORY WITH PREFORMED FILAMENTS

Abstract:

A method for fabricating a plurality of resistive random access memory (RRAM) cells includes providing a substrate including a memory medium arranged on an underlying layer; creating channel holes in the memory medium having a first critical dimension in a range from 1 nm to 20 nm; depositing switching material defining a filament of the RRAM cells in the channel holes; depositing a top electrode of the RRAM cells on the memory medium and the switching material; and separating adjacent ones of the RRAM cells by etching the top electrode and the memory medium between adjacent ones of the channel holes.