The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2016
Filed:
May. 18, 2015
Infineon Technologies Ag, Neubiberg, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
The invention relates to methods and systems for reading a memory cell and in particular, an STT MRAM. In one example, a system for reading a memory cell includes a sense path and an inverse path. A reference current is provided through the sense path and is sampled via a first sampling element in the sense path, and a cell current from the memory cell is provided through the inverse sense path and is sampled via a second sampling element in the inverse sense path. Subsequently, the memory cell is disconnected from the inverse sense path, the cell current is provided through the sense path, the reference source is disconnected from the sense path, and the reference current is provided through the inverse sense path. The output levels are then determined by the cell and reference currents working against the sampled reference and sampled cell currents.