Patent classifications
H10B53/30
Write scheme for multi-element gain ferroelectric memory bit-cell with plate-line parallel to word-line to minimize write disturb effects
A memory is provided which comprises a capacitor including non-linear polar material. The capacitor may have a first terminal coupled to a node (e.g., a storage node) and a second terminal coupled to a plate-line. The capacitors can be a planar capacitor or non-planar capacitor (also known as pillar capacitor). The memory includes a transistor coupled to the node and a bit-line, wherein the transistor is controllable by a word-line, wherein the plate-line is parallel to the bit-line. The memory includes a refresh circuitry to refresh charge on the capacitor periodically or at a predetermined time. The refresh circuit can utilize one or more of the endurance mechanisms. When the plate-line is parallel to the bit-line, a specific read and write scheme may be used to reduce the disturb voltage for unselected bit-cells. A different scheme is used when the plate-line is parallel to the word-line.
Write scheme for multi-element gain ferroelectric memory bit-cell with plate-line parallel to word-line to minimize write disturb effects
A memory is provided which comprises a capacitor including non-linear polar material. The capacitor may have a first terminal coupled to a node (e.g., a storage node) and a second terminal coupled to a plate-line. The capacitors can be a planar capacitor or non-planar capacitor (also known as pillar capacitor). The memory includes a transistor coupled to the node and a bit-line, wherein the transistor is controllable by a word-line, wherein the plate-line is parallel to the bit-line. The memory includes a refresh circuitry to refresh charge on the capacitor periodically or at a predetermined time. The refresh circuit can utilize one or more of the endurance mechanisms. When the plate-line is parallel to the bit-line, a specific read and write scheme may be used to reduce the disturb voltage for unselected bit-cells. A different scheme is used when the plate-line is parallel to the word-line.
Integrated assemblies and methods of forming integrated assemblies
Some embodiments include an integrated assembly having first and second pillars of semiconductor material laterally offset from one another. The pillars have source/drain regions and channel regions vertically offset from the source/drain regions. Gating structures pass across the channel regions, and extend along a first direction. An insulative structure is over regions of the first and second pillars, and extends along a second direction which is crosses the first direction. Bottom electrodes are coupled with the source/drain regions. Leaker-device-structures extend upwardly from the bottom electrodes. Ferroelectric-insulative-material is laterally adjacent to the leaker-device-structures and over the regions of the bottom electrodes. Top-electrode-material is over the ferroelectric-insulative-material and is directly against the leaker-device-structures. Some embodiments include methods of forming integrated assemblies.
Common mode compensation for non-linear polar material based 1T1C memory bit-cell
To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
Common mode compensation for non-linear polar material based 1T1C memory bit-cell
To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
SINGLE-CRYSTAL TRANSISTORS FOR MEMORY DEVICES
Methods, systems, and devices for single-crystal transistors for memory devices are described. In some examples, a cavity may be formed through at least a portion of one or more dielectric materials, which may be deposited above a deck of memory cells. The cavity may include a taper, such as a taper toward a point, or a taper having an included angle that is within a range, or a taper from a cross-sectional area to some fraction of the cross-sectional area, among other examples. A semiconductor material may be deposited in the cavity and above the one or more dielectric materials, and formed in a single crystalline arrangement based on heating and cooling the deposited semiconductor material. One or more portions of a transistor, such as a channel portion of a transistor, may be formed at least in part by doping the single crystalline arrangement of the semiconductor material.
DIELECTRIC MATERIAL AND DEVICE INCLUDING THE SAME
Provided are a dielectric material and a device including the dielectric material. The dielectric material includes (K.sub.0.5Na.sub.0.5)NbO.sub.3 and (K.sub.0.5A.sub.0.5)TiO.sub.3, wherein A is a trivalent element having 3 valence electrons, in a solid solution; and the device includes a plurality of electrodes; and at least one dielectric layer between the plurality of electrodes, wherein the dielectric layers include the dielectric material.
STACKED STRUCTURE, MEMORY DEVICE AND METHOD OF MANUFACTURING STACKED STRUCTURE
A stacked structure includes a ferroelectric layer, and a tunnel barrier layer joined to the ferroelectric layer. The main component of the ferroelectric layer is aluminum nitride, and the main component of the tunnel barrier layer is magnesium oxide.
Bonded memory devices and methods of making the same
At least a portion of a memory cell is formed over a first substrate and at least a portion of a steering element or word or bit line of the memory cell is formed over a second substrate. The at least a portion of the memory cell is bonded to at least a portion of a steering element or word or bit line. At least one of the first or second substrate may be removed after the bonding.
MULTI-LAYER ELECTRODE TO IMPROVE PERFORMANCE OF FERROELECTRIC MEMORY DEVICE
Various embodiments of the present disclosure are directed towards a memory device including a first bottom electrode layer over a substrate. A ferroelectric switching layer is disposed over the first bottom electrode layer. A first top electrode layer is disposed over the ferroelectric switching layer. A second bottom electrode layer is disposed between the first bottom electrode layer and the ferroelectric switching layer. The second bottom electrode layer is less susceptible to oxidation than the first bottom electrode layer.