H01L27/11504

SEMICONDUCTOR STORAGE DEVICE AND ELECTRONIC APPARATUS
20200243550 · 2020-07-30 ·

Provided is a semiconductor storage device and an electronic apparatus having a structure that is more suitable for miniaturization and high integration of memory cells. A semiconductor storage device includes: a recessed portion provided in a semiconductor substrate; a ferroelectric film provided along an inner side of the recessed portion; an electrode provided on the ferroelectric film so as to be embedded in the recessed portion; a first conductivity-type separation region provided in the semiconductor substrate under the recessed portion; and a second conductivity-type electrode region provided in the semiconductor substrate on at least one side of the recessed portion.

METHODS OF INCORPORATING LEAKER-DEVICES INTO CAPACITOR CONFIGURATIONS TO REDUCE CELL DISTURB, AND CAPACITOR CONFIGURATIONS INCORPORATING LEAKER-DEVICES

Some embodiments include an integrated assembly having first electrodes with top surfaces, and with sidewall surfaces extending downwardly from the top surfaces. The first electrodes are solid pillars. Insulative material is along the sidewall surfaces of the first electrodes. Second electrodes extend along the sidewall surfaces of the first electrodes and are spaced from the sidewall surfaces by the insulative material. Conductive-plate-material extends across the first and second electrodes, and couples the second electrodes to one another. Leaker-devices electrically couple the first electrodes to the conductive-plate-material and are configured to discharge at least a portion of excess charge from the first electrodes to the conductive-plate-material. Some embodiments include methods of forming integrated assemblies.

Ferroelectric memory device having vertical channel between source line and bit line
10720437 · 2020-07-21 · ·

A ferroelectric memory device according to an embodiment includes a base conduction layer, a channel layer extending in a vertical direction from the base conduction layer, a ferroelectric layer disposed on the channel layer, a plurality of ferroelectric memory cell transistor stacked in a vertical direction on the base conduction layer, a control transistor disposed over the plurality of ferroelectric memory cell transistors, and a bit line pattern electrically connected to the channel layer.

METHOD OF FORMING A MEMORY DEVICE
20200227436 · 2020-07-16 ·

A method of forming a memory device including forming a stack of silicon nitride layers and polysilicon layers that are alternating arranged, etching a serpentine trench in the stack of silicon nitride layers and polysilicon layers, forming a first isolation layer in the serpentine trench, removing one of the silicon nitride layers to form a recess between neighboring two of the polysilicon layers, and forming in sequence a doped polysilicon layer, a gate dielectric layer, and a conductive layer in the recess.

Array Of Capacitors, Array Of Memory Cells, Methods Of Forming An Array Of Capacitors, And Methods Of Forming An Array Of Memory Cells

A method of forming an array of capacitors comprises forming a plurality of horizontally-spaced groups that individually comprise a plurality of horizontally-spaced lower capacitor electrodes having a capacitor insulator thereover. Adjacent of the groups are horizontally spaced farther apart than are adjacent of the lower capacitor electrodes within the groups. A void space is between the adjacent groups. An upper capacitor electrode material is formed in the void space and in the groups over the capacitor insulator and the lower capacitor electrodes. The upper capacitor electrode material in the void space connects the upper capacitor electrode material that is in the adjacent groups relative to one another. The upper capacitor electrode material less-than-fills the void space. At least a portion of the upper capacitor electrode material is removed from the void space to disconnect the upper capacitor electrode material in the adjacent groups from being connected relative to one another. A horizontally-elongated conductive line is formed atop and is directly electrically coupled to the upper capacitor electrode material in individual of the groups. Other methods, including structure independent of method of manufacture, are disclosed.

METHOD OF MANUFACTURING A THREE-DIMENSIONAL NON-VOLATILE MEMORY DEVICE
20200194441 · 2020-06-18 ·

In a method of manufacturing a non-volatile memory device, insulating layers and conductive gates may be alternately formed on a semiconductor substrate to form a stack structure. A contact hole may be formed through the stack structure. A channel layer may be formed on a surface of the contact hole. The contact hole may be filled with a gap-fill insulating layer. The gap-fill insulating layer may be etched by a target depth to define a preliminary junction region. The channel layer may be etched until a surface of the channel layer may correspond to a surface of an uppermost gate among the gates. Diffusion-preventing ions may be implanted into the channel layer. A capping layer with impurities may be formed in the preliminary junction region.

Three-dimensional ferroelectric NOR-type memory

An embodiment includes a three dimensional (3D) memory that includes a NOR logic gate, wherein the NOR logic gate includes a ferroelectric based transistor. Other embodiments are addressed herein.

Transistor, semiconductor device, memory device and fabrication the same
10644024 · 2020-05-05 ·

A transistor includes a substrate having a plurality of source/drain regions and a channel region between the source/drain regions, a gate, and a gate dielectric layer between the gate and the substrate. The substrate tapers in a direction away from the gate dielectric layer in top view. The transistor density can be improved.

Three-Dimensional Ferroelectric NOR-Type Memory
20200105773 · 2020-04-02 ·

An embodiment includes a three dimensional (3D) memory that includes a NOR logic gate, wherein the NOR logic gate includes a ferroelectric based transistor. Other embodiments are addressed herein.

Memory arrays

A memory array comprises vertically-alternating tiers of insulative material and memory cells. The memory cells individually include a transistor comprising first and second source/drain regions having a channel region there-between and a gate operatively proximate the channel region. At least a portion of the channel region is horizontally-oriented for horizontal current flow in the portion between the first and second source/drain regions. The memory cells individually include a capacitor comprising first and second electrodes having a capacitor insulator there-between. The first electrode is electrically coupled to the first source/drain region. The second capacitor electrodes of multiple of the capacitors in the array are electrically coupled with one another. A sense-line structure extends elevationally through the vertically-alternating tiers. Individual of the second source/drain regions of individual of the transistors that are in different memory cell tiers are electrically coupled to the elevationally-extending sense-line structure. Additional embodiments are disclosed.