G11C11/1673

Magnetoresistance effect element, circuit device, and circuit unit

There is provided a magnetoresistance effect element includes: a channel layer that extends in a first direction; a recording layer which includes a film formed from a ferromagnetic material, of which a magnetization state is changed to one of two or greater magnetization states, and which is formed on the channel layer; a non-magnetic layer that is provided on a surface of the recording layer; a reference layer which is provided on a surface of the non-magnetic layer, which includes a film formed from a ferromagnetic material, and of which a magnetization direction is fixed; a terminal pair that includes a first terminal and a second terminal which are electrically connected to the channel layer with an interval in the first direction, and to which a current pulse for bringing the recording layer to any one magnetization state with a plurality of pulses is input by flowing a current to the channel layer between the first terminal and the second terminal; and a third terminal that is electrically connected to the reference layer.

Transition metal dichalcogenide based spin orbit torque memory device with magnetic insulator

A memory apparatus is provided which comprises: a stack comprising a magnetic insulating material and a transition metal dichalcogenide (TMD), wherein the magnetic insulating material has a first magnetization. The stack behaves as a free magnet. The apparatus includes a fixed magnet with a second magnetization. An interconnect is further provided which comprises a spin orbit material, wherein the interconnect is adjacent to the stack.

Memory device and method of manufacturing the same

A memory device includes a magnetic track layer extending on a substrate, the magnetic track layer having a folded structure that is two-dimensionally villi-shaped, a plurality of reading units including a plurality of fixed layers and a tunnel barrier layer between the magnetic track layer and each of the plurality of fixed layers, and a plurality of bit lines extending on different ones of the plurality of reading units, the plurality of reading units being between the magnetic track layer and corresponding ones of the plurality of bit lines.

METHOD OF DATA ENCODING IN NON-VOLATILE MEMORIES
20230010522 · 2023-01-12 ·

A method of storing a data into a memory storage having bit cells. The method includes identifying each of the binary one and the binary zero in the data as either a majority bit value or a minority bit value based on the probability of finding the binary one in the data or based on the probability of finding the binary zero in the data. In the method, a bit of the data is stored into the bit cell as the more preferred state if the bit of the data has the majority bit value, and a bit of the data is stored into the bit cell as the less preferred state if the bit of the data has the minority bit value.

Structure for multiple sense amplifiers of memory device

A memory device is disclosed. The memory device includes at least one reference cell and multiple sense amplifiers. The at least one reference cell having a first terminal coupled to a ground. Each of the sense amplifiers has a first terminal and a second terminal. The first terminal is coupled to one of multiple first data lines, and the second terminal is coupled to a second terminal of the at least one reference cell.

One time programmable (OTP) magnetoresistive random-access memory (MRAM)

A memory device includes a plurality of magnetoresistive random-access memory (MRAM) cells including a first one-time programmable (OTP) MRAM cell. A first OTP select transistor is connected to the first OTP MRAM cell. The first OTP select transistor configured to selectively apply a breakdown current to the first OTP MRAM cell to write the first OTP MRAM cell to a breakdown state.

MLU BASED MAGNETIC SENSOR HAVING IMPROVED PROGRAMMABILITY AND SENSITIVITY
20180003781 · 2018-01-04 ·

A magnetic sensor device for sensing an external magnetic field includes a plurality of MLU cells, each MLU cell having a magnetic tunnel junction including a sense layer having a sense magnetization freely orientable in the external magnetic field, a storage layer having a storage magnetization; and a tunnel barrier layer between the sense layer and the storage layer. The magnetic sensor device includes a stress inducing device configured for applying an anisotropic mechanical stress on the magnetic tunnel junction such as to induce a stress-induced magnetic anisotropy on at least one of the sense layer and the storage layer. The stress-induced magnetic anisotropy induced by the stress inducing device corresponds substantially to a net magnetic anisotropy of the at least one of the sense layer and the storage layer. The magnetic sensor device can be programmed easily and has improved sensitivity.

MAGNETIC MEMORY SLOT

A memory slot including a pad formed of a stack of regions made of thin layers, including a first region made of a nonmagnetic conducting material; a second region made of a magnetic material exhibiting a magnetization in a direction perpendicular to the principal plane of the pad; a third region made of a nonmagnetic conducting material of different characteristics to those of the first region; the pad resting on a conducting track adapted to cause the flow of a programming current of chosen sense, in which the pad has an asymmetric shape with respect to any plane perpendicular to the plane of the layers and parallel to the central axis of the track, and with respect to its barycenter.

MEMORY DEVICE AND METHOD FOR OPERATING THEREOF
20180005678 · 2018-01-04 ·

According to various embodiments, there is provided a memory device including at least one sense amplifier having a first side and a second side, wherein the second side opposes the first side; a first array including a plurality of memory cells arranged at the first side; a second array including a plurality of memory cells arranged at the second side; a first row including a plurality of mid-point reference units arranged at the first side; and a second row including a plurality of mid-point reference units arranged at the second side, wherein each mid-point reference unit of the first row is configured to generate a first reference voltage, and wherein each mid-point reference unit of the second row is configured to generate a second reference voltage; wherein the sense amplifier is configured to determine a resistance state of a memory cell of the first array based on the second reference voltage; wherein the sense amplifier is configured to determine a resistance state of a memory cell of the second array based on the first reference voltage.

SEMICONDUCTOR MEMORY DEVICES INCLUDING A MEMORY ARRAY AND RELATED METHOD INCORPORATING DIFFERENT BIASING SCHEMES
20180012656 · 2018-01-11 ·

Memory devices provide a plurality of memory cells, each memory cell including a memory element and a selection device. A plurality of first (e.g., row) address lines can be adjacent (e.g., under) a first side of at least some cells of the plurality. A plurality of second (e.g., column) address lines extend across the plurality of row address lines, each column address line being adjacent (e.g., over) a second, opposing side of at least some of the cells. Control circuitry can be configured to selectively apply a read voltage or a write voltage substantially simultaneously to the address lines. Systems including such memory devices and methods of accessing a plurality of cells at least substantially simultaneously are also provided.