Patent ID: 7169623
Filing Date: 2007-01-30
Classification: H01L

Abstract:
1. A process of fabricating a magnetic tunnel junction device that comprises the steps of: (a) forming a first magnetic member; (b) forming a second magnetic member; (c) forming an insulating tunnel barrier layer that comprises a dielectric material located between the first magnetic member and the second magnetic member; (d) forming a contact layer on an upper surface of the second magnetic member; (e) forming a patterned mask over the contact layer; (f) selectively removing portions of the contact layer; (g) removing the patterned mask; and (h) selectively removing portions of the second magnetic member and the insulating tunnel barrier layer such that at least one side portion of the second magnetic member and of the insulating tunnel barrier layer define a non-vertical profile which protrudes outwardly from the at least one side portion.