摘要:
A thin film device and a method of providing thermal assistance therein is disclosed. Accordingly, a heater material is utilized to thermally assist in the operation of the thin film device. By utilizing a heater material to thermally assist in the operation of the thin film device, a substantial improvement in the accuracy and performance of the thin film device is achieved. A first aspect of the present invention is a thin film device. The thin film device includes at least one patterned thin film layer, a heater material coupled to the at least one patterned thin film layer for providing thermal assistance to the at least one of the patterned thin film layers and a conductor coupled to the heater material for supplying energy to the heater material.
摘要:
This invention provides a controlled temperature, thermal-assisted magnetic memory device. In a particular embodiment, there is an array of SVM cells, each characterized by an alterable orientation of magnetization and including a material wherein the coercivity is decreased upon an increase in temperature. In addition, at least one reference SVM (RSVM) cell substantially similar to and in close proximity to the SVM cells of the array is provided. A provided feedback control temperature controller receives a feedback voltage from the reference SVM cell, corresponding to temperature, and adjusts power applied to the RSVM cell and SVM cell. An associated method of use is further provided.
摘要:
A magnetic memory cell write current threshold detector. The magnetic memory cell write current threshold detector includes a first MRAM test cell receiving a write current and sensing when the write current exceeds a first threshold, and a second MRAM test cell receiving the write current and sensing when the write current exceeds a second threshold.
摘要:
A thin film device and a method of providing thermal assistance therein is disclosed. Accordingly, a heater material is utilized to thermally assist in the operation of the thin film device. By utilizing a heater material to thermally assist in the operation of the thin film device, a substantial improvement in the accuracy and performance of the thin film device is achieved. A first aspect of the present invention is a thin film device. The thin film device includes at least one patterned thin film layer, a heater material coupled to the at least one patterned thin film layer for providing thermal assistance to the at least one of the patterned thin film layers and a conductor coupled to the heater material for supplying energy to the heater material.
摘要:
A magnetic memory cell includes a first magneto-resistive device and a second magneto-resistive device. The first magneto-resistive device has a first sense layer. The second magneto-resistive device is connected in series with the first magneto-resistive device. The second magneto-resistive device has a second sense layer. At least one controlled nucleation site is placed on at least one of the first sense layer and the second sense layer.
摘要:
An electro-magnetic device, such as magnetic memory device, is disclosed that includes means for structuring, attenuating or eliminating stray fields at the boundaries that produce an offset in the magneto-resistive response. The device comprises a conductive first layer and the attenuating means comprises a sink layer, electro-magnetically coupled to the first layer, to attenuate the stray boundary magneto-resistive offset at a boundary of the first layer during electrical operation.
摘要:
A magnetic memory array comprises a plurality of magnetic memory cells, a magnetic shielding disposed adjacent to at least one of the magnetic memory cells to reduce magnetic interference with respect to another of the magnetic memory cells, and an insulator disposed as to separate at least a portion of the magnetic shielding from the at least one magnetic memory cell. The magnetic shielding may be a magnetic shield layer, patterned magnetic shield materials, and/or magnetic particles embedded in the insulator.
摘要:
Magnetic memory devices are disclosed. In one embodiment, the device comprises a memory cell having an easy axis aligned along a first direction, the memory cell being configured so as to be most easily switched from one logic state to another when only receiving a magnetic field along the first direction, and a magnetic biasing element associated with the memory cell, the magnetic biasing element having a magnetic orientation aligned along a second direction different from the first direction.
摘要:
A ferromagnetic data layer of a magnetic memory element is formed with a controlled nucleation site. In some embodiments, the nucleation site may be a divot in the data layer or a protrusion from the data layer. A Magnetic Random Access Memory (“MRAM”) device may include an array of magnetic memory elements having data layers with controlled nucleation sites.
摘要:
In one embodiment, a memory device includes a plurality of magnetic data cells and a magnetic reference cell extending uninterrupted along more than one of the plurality of data cells.