Abstract: A magnetic memory cell in which a sensor is magnetically coupled to a magnetic media wherein the separation of the magnetic media from the sensor permits each to be magnetically optimized separate from the other, thus improving defect tolerance and minimizing the magnetic influence of neighboring cells in an array on one another. In an embodiment, the read circuitry is positioned so that no read current passes through the media during a read operation. In an alternative embodiment, processing is simplified but the read current is allowed to pass through the media.
Abstract: Disclosed is a current driving mechanism for a magnetic memory device, comprising: a) a current driver circuit; and b) a current decoding block coupled to the current driver circuit, wherein the current decoding block comprises a transistor M18 to control driver currents from the current driver circuit, and wherein the transistor M18 has a smaller form factor then otherwise possible by virtue of maintaining a gate thereof at a negative voltage.
Abstract: Embodiments of the invention provide compact magnetic random access memory cell, comprising a word line; a bit line comprising a slot formed therein; a magnetic storage element disposed between the word line and the bit line; an access transistor located below the bit line and aligned with the slot therein; and a conductor passing through the slot in the bit line electrically connect the magnetic storage element to the access transistor.
Abstract: In one embodiment, there is provided a method for programming a memory device having magnetoresistive memory elements as storage elements. The method is performed during fabrication of the memory device and may be used to realize a Magnetic Read Only Memory (MROM) device. In accordance with the method, during fabrication of a memory device comprising a plurality of magnetoresistive memory elements (MRME) e.g. a MTJs, the memory device is programmed by selectively controlling the presence or absence of the magnetoresistive element at each intersection of a word line (WL) and a bit line (BL) in the device.
Abstract: Embodiments of the present invention disclose an MRAM device having a plurality of magnetic memory cells grouped into words, and write conductors for carrying write currents to write to the memory cells, wherein at least some of the write conductors have a reduced cross-sectional area in the vicinity of a group of memory cells.
Abstract: A magnetic memory cell in which a sensor is magnetically coupled to a magnetic media wherein the separation of the magnetic media from the sensor permits each to be magnetically optimized separate from the other, thus improving defect tolerance and minimizing the magnetic influence of neighboring cells in an array on one another. In an embodiment, the read circuitry is positioned so that no read current passes through the media during a read operation. In an alternative embodiment, processing is simplified but the read current is allowed to pass through the media.
Abstract: A magnetic memory cell in which a sensor is magnetically coupled to a magnetic media wherein the separation of the magnetic media from the sensor permits each to be magnetically optimized separate from the other, thus improving defect tolerance and minimizing the magnetic influence of neighboring cells in an array on one another. In an embodiment, the read circuitry is positioned so that no read current passes through the media during a read operation. In an alternative embodiment, processing is simplified but the read current is allowed to pass through the media.
Abstract: A magnetic memory cell in which a sensor is magnetically coupled to a magnetic media wherein the separation of the magnetic media from the sensor permits each to be magnetically optimized separate from the other, thus improving defect tolerance and minimizing the magnetic influence of neighboring cells in an array on one another. In an embodiment, the read circuitry is positioned so that no read current passes through the media during a read operation. In an alternative embodiment, processing is simplified but the read current is allowed to pass through the media.
Abstract: A solid state magnetic memory system and method disposes an array of magnetic media cells in an array on a substrate. In an exemplary embodiment, drive electronics are fabricated into the substrate through conventional CMOS processing in alignment with associated cells of the array. The magnetic media cells each include a magnetic media bit and a magnetoresistive or GMR stack for reading the state of the media bit. Addressing lines are juxtaposed with the media bits to permit programming and erasing of selected ones of the bits. In at least some embodiments, sector erase may be performed.
Abstract: Disclosed herein are a magnetic memory device and method for storing and retrieving data. The magnetic memory device includes a read disk and a storage disk. The read disk comprises of an array of read heads wherein the individual read head corresponds to a storage element on the storage disk.
Abstract: Disclosed herein are different embodiments of a magnetic memory cell. This magnetic memory cell includes at least two conductive lines to carry current and a magnetic element disposed between the conductive lines. The current through the conductive lines induces a magnetic field. The design is such that the magnetic element is directly accessible.
Abstract: A horizontally disposed elliptical or rectangular magnetic memory cell includes at least two conductive lines to carry current and a magnetic element disposed between the conductive lines. The current through the conductive lines induces a magnetic field, such that the magntic element is directly accessible. The magnetic memory cell can be sensed with a GMR head.