Patent ID: 6921953
Filing Date: 2005-07-26
Classification: G11C,H01L,Y10T

Abstract:
1. A method of forming at least one magnetoresistive random access memory cell structure, the method comprising: forming a trench in a first insulating layer to define a first upper level and a second lower level, said first level and said second level being connected by at least a sidewall region; forming a ferromagnetic cladding layer within said trench and over said second level and said sidewall region of said first insulating layer; forming a first conductive layer within said trench and over a second level and a sidewall region of said ferromagnetic cladding layer; forming a second insulating layer within said trench and over a second level and a sidewall region of said first conductive layer; forming a second conductive layer within said trench; and forming a magnetic tunnel junction element over said second conductive layer.