Abstract:
Embodiments disclosed herein include semiconductor devices with Schottky diodes in a back end of line stack. In an embodiment, a semiconductor device comprises a semiconductor layer, where transistor devices are provided in the semiconductor layer, and a back end stack over the semiconductor layer. In an embodiment, a diode is in the back end stack. In an embodiment, the diode comprises a first electrode, a semiconductor region over the first electrode, and a second electrode over the semiconductor region. In an embodiment, a first interface between the first electrode and the semiconductor region is an ohmic contact, and a second interface between the semiconductor region and the second electrode is a Schottky contact.
Abstract:
Spin transfer torque memory (STTM) devices incorporating a field plate for application of an electric field to reduce a critical current required for transfer torque induced magnetization switching. Embodiments utilize not only current-induced magnetic filed or spin transfer torque, but also electric field induced manipulation of magnetic dipole orientation to set states in a magnetic device element (e.g., to write to a memory element). An electric field generated by a voltage differential between an MTJ electrode and the field plate applies an electric field to a free magnetic layer of a magnetic tunneling junction (MTJ) to modulate one or more magnetic properties over at least a portion of the free magnetic layer.
Abstract:
Technologies for manufacturing spin transfer torque memory (STTM) elements are disclosed. In some embodiments, the technologies include methods for removing a re-deposited layer and/or interrupting the electrical continuity of a re-deposited layer that may form on one or more sidewalls of an STTM element during its formation. Devices and systems including such STTM elements are also described.
Abstract:
A material layer stack for a magnetic tunneling junction, the material layer stack including a fixed magnetic layer; a dielectric layer; a free magnetic layer; and an amorphous electrically-conductive seed layer, wherein the fixed magnetic layer is disposed between the dielectric layer and the seed layer. A non-volatile memory device including a material stack including an amorphous electrically-conductive seed layer; and a fixed magnetic layer juxtaposed and in contact with the seed layer. A method including forming an amorphous seed layer on a first electrode of a memory device; forming a material layer stack on the amorphous seed layer, the material stack including a dielectric layer disposed between a fixed magnetic layer and a free magnetic layer, wherein the fixed magnetic layer.
Abstract:
Embodiments disclosed herein include a semiconductor devices with back end of line (BEOL) transistor devices. In an embodiment, a semiconductor device comprises a semiconductor substrate and a BEOL stack over the semiconductor substrate. In an embodiment, a field effect transistor (FET) is embedded in the BEOL stack. In an embodiment, the FET comprises a channel, a gate dielectric over the channel, where the gate dielectric is single crystalline, a gate electrode over the gate dielectric, and a source electrode and a drain electrode passing through the gate dielectric to contact the channel.
Abstract:
Embodiments disclosed herein include semiconductor devices with electrostatic discharge (ESD) protection of the transistor devices. In an embodiment, a semiconductor device comprises a semiconductor substrate, where a transistor device is provided on the semiconductor substrate. In an embodiment, the semiconductor device further comprises a stack of routing layers over the semiconductor substrate, and a diode in the stack of routing layers. In an embodiment, the diode is configured to provide electrostatic discharge (ESD) protection to the transistor device.
Abstract:
Vertically oriented nanowire transistors including semiconductor layers or gate electrodes having compositions that vary over a length of the transistor. In embodiments, transistor channel regions are compositionally graded, or layered along a length of the channel to induce strain, and/or include a high mobility injection layer. In embodiments, a gate electrode stack including a plurality of gate electrode materials is deposited to modulate the gate electrode work function along the gate length.
Abstract:
Approaches and structures for unipolar current switching in perpendicular magnetic tunnel junction (pMTJ) devices through reduced bi-polar coercivity are described. In an example, a memory array includes a plurality of bitlines and a plurality of select lines. The memory array also includes a plurality of memory elements located among and coupled to the plurality of bitlines and the plurality of select lines. Each of the plurality of memory elements includes a unipolar switching magnetic tunnel junction (MTJ) device and a select device.
Abstract:
Described is an apparatus which comprises: a magnetic tunneling junction (MTJ) device with out-of-plane magnetizations for its free and fixed magnetic layers, and configured to have a magnetization offset away from a center and closer to a switching threshold of the MTJ device; and logic for generating random numbers according to a resistive state of the MTJ device.
Abstract:
Embodiments of the present disclosure describe configurations and techniques to increase interfacial anisotropy of magnetic tunnel junctions. In embodiments, a magnetic tunnel junction may include a cap layer, a tunnel barrier, and a magnetic layer disposed between the cap layer and the tunnel barrier. A buffer layer may, in some embodiments, be disposed between the magnetic layer and a selected one of the cap layer or the tunnel barrier. In such embodiments, the interfacial anisotropy of the buffer layer and the selected one of the cap layer or the tunnel barrier may be greater than an interfacial anisotropy of the magnetic layer and the selected one of the cap layer or the tunnel barrier. Other embodiments may be described and/or claimed.