Abstract:
A non-volatile storage apparatus is proposed that includes a plurality of serially connected non-volatile reversible resistance-switching memory cells, a plurality of word lines such that each of the memory cells is connected to a different word line, a bit line connected to a first end of the serially connected memory cells and a switch connected to a second end of the serially connected memory cells. In one embodiment, the memory cells include a reversible resistance-switching structure comprising a first material, a second material and a reversible resistance-switching interface between the first material and the second material, a channel, and means for switching current between current flowing through the channel and current flowing through the reversible resistance-switching interface in order to program and read the reversible resistance-switching interface. A process for manufacturing the memory is also disclosed.
Abstract:
A method is provided that includes forming a word line above a substrate, forming a bit line above the substrate, forming a nonvolatile memory material between the word line and the bit line, and forming a memory cell including the nonvolatile memory material at an intersection of the bit line and the word line. The word line is disposed in a first direction, and includes a first word line portion and a second word line portion. The second word line portion of the word line includes a first conductive oxide material. The bit line is disposed in a second direction perpendicular to the first direction. The nonvolatile memory material includes a barrier oxide material layer and a second conductive oxide material layer, with the barrier oxide material layer disposed adjacent the second word line portion of the word line.
Abstract:
Disclosed herein are metal filament memory devices (MFMDs), and related devices a techniques. In some embodiments, an MFMD may include: an electrode including an electrochemically active metal; an electrolyte; and a barrier material disposed between the electrode and the electrolyte, wherein the barrier material has a lower work function than the electrode.
Abstract:
A low-leakage resistive random access memory cell includes a complementary pair of bit lines and a switch node. A first ReRAM device is connected to a first one of the bit lines. A p-channel transistor has a source connected to the ReRAM device, a drain connected to the switch node, and a gate connected to a bias potential. A second ReRAM device is connected to a second one of the bit lines. An n-channel transistor has a source connected to the ReRAM device a drain connected to the switch node, and a gate connected to a bias potential.
Abstract:
A memory device includes at least one memory cell. The at least one memory cell includes a steering element, a resistive memory element, and a tunneling dielectric element located between the steering element and the resistive memory element.
Abstract:
The proposed three-dimensional resistive random access memory (ReRAM) array includes multiple line stack structures laterally spaced apart along a first horizontal direction and extend along a different second horizontal direction. Each line stack structure comprises an alternating plurality of word lines (30) and bit lines (38). An intervening line stack including a memory material line structure (32), an intrinsic semiconductor material line structure (34), and a doped semiconductor material line structure (36) is located between each vertically neighboring pair of a word line and a bit line. A two- dimensional array of vertical selector lines (54), separated from the line stacks by a gate dielectric (52), functions as gate electrodes, each gate electrode activating a semiconductor channel between a word line and a bit line.
Abstract:
In some embodiments, a transistor includes a stack having a bottom source/drain region, a first insulative material, a conductive gate, a second insulative material, and a top source/drain region. The stack has a vertical sidewall with a bottom portion along the bottom source/drain region, a middle portion along the conductive gate, and a top portion along the top source/drain region. Third insulative material is along the middle portion of the vertical sidewall. A channel region material is along the third insulative material. The channel region material is directly against the top and bottom portions of the vertical sidewall. The channel region material has a thickness within a range of from greater than about 3 A to less than or equal to about Ι θΑ; and/or has a thickness of from 1 monolayer to 7 monolayers.
Abstract:
Vertical 1 T-l R memory cells, memory arrays of vertical 1 T-1 R memory calls, and methods of forming such memory cells and memory arrays are described. The memory cells each include a vertical transistor (T) and a resistivity-switching element (R) coupled in series with and disposed above or below the vertical transistor. The vertical transistor includes a controlling electrode (G) coupled to a word line (WL) that is above or below the vertical transistor. The controlling electrode is disposed on a sidewall of the vertical transistor. Each vertical transistor (T) includes a first terminal coupled to a bit line (BL), a second terminal comprising the controlling electrode (G) coupled to a word line (WL), and a third terminal coupled to the resistivity-switching element (R).