Patent ID: 9203017
Filing Date: 2015-12-01
Classification: G11C,H01L

Abstract:
1. A magnetic junction for use in a magnetic device comprising: a first pinned layer having a pinned layer perimeter and a top surface; a nonmagnetic spacer layer residing on at least a first portion of the top surface; a free layer, the nonmagnetic spacer layer residing between the pinned layer and the free layer, the free layer having a free layer perimeter, the free layer perimeter being not larger than the pinned layer perimeter; and at least one package structure, the at least one package structure being ferromagnetic and encircling at least one of the free layer and the pinned layer, the at least one package structure being ferromagnetically coupled with the first pinned layer; wherein the magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction.