Tilted array geometry for improved MRAM switching
US6917087B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10B61/00
Abstract
An array of conductive lines for MRAM circuits wherein at least one set of mutually parallel conductive traces is tilted with respect to being perpendicular with a corresponding set of mutually parallel conductive traces wherein individual conductive traces within the sets intersect adjacent individual MRAM cells and wherein the tilting of the at least one set of conductive traces acts to induce both a vertical and horizontal component of a magnetic field such that the net vector addition of magnetic fields induced by the sets of conductive traces is greater than the untilted or perpendicular configuration so as to induce a greater net magnetic field to effect more reliable switching of the underlying MRAM cells. The tilted array also enables reducing the current supplied by the conductive traces while maintaining a comparable net magnetic field to the untilted configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.