G11C2213/31

HIGH VOLTAGE SWITCHING CIRCUITRY FOR A CROSS-POINT ARRAY
20180005694 · 2018-01-04 ·

A system includes a cross-point memory array and a decoder circuit coupled to the cross-point memory array. The decoder circuit includes a predecoder having predecode logic to generate a control signal and a level shifter circuit to generate a voltage signal. The decoder circuit further includes a post-decoder coupled to the predecoder, the post-decoder including a first stage and a second stage coupled to the first stage, the control signal to control the first stage and the second stage to route the voltage signal through the first stage and the second stage to a selected conductive array line of a plurality of conductive array lines coupled to a memory array.

Programmable resistive memory element and a method of making the same

A programmable resistive memory element and a method of adjusting a resistance of a programmable resistive memory element are provided. The programmable resistive memory element includes at least one resistive memory element. Each resistive memory element includes an Indium-Gallium-Zinc-Oxide (IGZO) resistive layer, a first electrical contact and a second electrical contact. The first and second electrical contacts are disposed on the IGZO resistive layer in the same plane. The programmable resistive memory element includes a voltage generator coupled to the first and second electrical contacts, constructed and arranged to apply a thermal treatment to the resistive memory element to adjust a resistance of the resistive memory element.

System and method for reading memory cells

A method, a circuit, and a system for reading memory cells. The method may include: applying a first voltage with a first polarity to a plurality of the memory cells; applying a second voltage with a second polarity to one or more of said plurality of the memory cells; applying at least a third voltage with the first polarity to one or more of said plurality of the memory cells; detecting electrical responses of memory cells to the first voltage, the second voltage, and the third voltage; and determining a logic state of respective memory cells based on the electrical responses of the memory cells to the first voltage, the second voltage, and the third voltage.

Deep in memory architecture using resistive switches

A DIMA semiconductor structure is disclosed. The DIMA semiconductor structure includes a frontend including a semiconductor substrate, a transistor switch of a memory cell coupled to the semiconductor substrate and a computation circuit on the periphery of the frontend coupled to the semiconductor substrate. Additionally, the DIMA includes a backend that includes an RRAM component of the memory cell that is coupled to the transistor switch.

Memory element with a reactive metal layer

A re-writeable non-volatile memory device including a re-writeable non-volatile two-terminal memory element (ME) having tantalum. The ME including a first terminal, a second terminal, a first layer of a conductive metal oxide (CMO), and a second layer in direct contact with the first layer. The second layer and the first layer being operative to store at least one-bit of data as a plurality of resistive states, and the first and second layer are electrically in series with each other and with the first and second terminals.

Ferroelectric components and cross point array devices including the ferroelectric components
11502248 · 2022-11-15 · ·

A ferroelectric component includes a first electrode, a tunnel barrier layer disposed on the first electrode to include a ferroelectric material, a tunneling control layer disposed on the tunnel barrier layer to control a tunneling width of electric charges passing through the tunnel barrier layer, and a second electrode disposed on the tunneling control layer.

Resistive random access memory device with three-dimensional cross-point structure and method of operating the same
11495292 · 2022-11-08 · ·

A memory device according to an embodiment includes a first interconnect, a second interconnect, a first variable resistance member, a third interconnect, a second variable resistance member, a fourth interconnect, a fifth interconnect and a third variable resistance member. The first interconnect, the third interconnect and the fourth interconnect extend in a first direction. The second interconnect and the fifth interconnect extend in a second direction crossing the first direction. The first variable resistance member is connected between the first interconnect and the second interconnect. The second variable resistance member is connected between the second interconnect and the third interconnect. The third variable resistance member is connected between the fourth interconnect and the fifth interconnect. The fourth interconnect is insulated from the third interconnect.

APPARATUS AND METHOD FOR GENERATING HARDWARE-BASED PHYSICAL UNCLONABLE FUNCTIONS AND THEIR USE

An apparatus for generating a binary numerical sequence is provided. The apparatus is configured to apply a first write voltage or a second write voltage, different from the first write voltage, as a write voltage to each of two or more switchable elements, and/or to apply a first read voltage or a second read voltage, different from the first read voltage, as a read voltage to each of the two or more switchable elements. Each switchable element of the two or more switchable elements is configured to output, in dependence on the write voltage applied to the switchable element and/or in dependence on the read voltage applied to the switchable element, an output voltage with a first random or pseudo-random voltage value from a first voltage value range or with a second random or pseudo-random voltage value from a second voltage value range.

METHOD AND SYSTEM FOR ACCESSING MEMORY CELLS

The present disclosure relates to a method for accessing memory cells comprising: applying an increasing read voltage with a first polarity to the plurality of memory cells; counting a number of switching memory cells in the plurality based on the applying the increasing read voltage; applying a first read voltage with the first polarity based on the number of switched memory cells reaching a threshold number; applying a second read voltage with a second polarity opposite to the first polarity; and determining that a memory cell in the plurality of memory cells has a first logic value based on the memory cell having switched during one of the applying the increasing read voltage and the applying the first read voltage or based on the memory cell not having switched during the applying the second read voltage. A related system is also disclosed.

Variable resistive memory device and method of driving a variable resistive memory device

A variable resistive memory device includes a memory cell, a first circuit, and a second circuit. The memory cell is connected between a word line and a bit line. The first circuit provides the bit line with a first pulse voltage based on at least one enable signal. The second circuit provides the word line with a second pulse voltage based on the enable signal. The first circuit generates the first pulse voltage increased in steps from an initial voltage level to a target voltage level.