Patent ID: 9373775
Filing Date: 2016-06-21
CPC Classification: G11C,H01L

Claim Text:
1. A method of forming a magnetic memory cell, the method comprising: forming a precursor structure on a base, the precursor structure comprising a lower section comprising a magnetic material, an upper section comprising another magnetic material, and a non-magnetic material between the lower section and the upper section; patterning the upper section using an ion beam directed parallel to an x-axis to form an upper elongate feature section defining an upper feature width; forming a spacer on the upper elongate feature section to define a broader feature pattern; transferring the broader feature pattern to the non-magnetic material and the lower section to form a lower elongate feature section; patterning the upper elongate feature section using an ion beam directed parallel to a y-axis about perpendicular to the x-axis to form an upper discrete feature section; forming another spacer on the upper discrete feature section to define another broader feature pattern; and transferring the another broader feature pattern to the lower elongate feature section to form a lower discrete feature section.