H01L27/11504

METHOD OF MANUFACTURING A THREE-DIMENSIONAL NON-VOLATILE MEMORY DEVICE
20210375886 · 2021-12-02 ·

22In 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.

3D-FERROELECTRIC RANDOM (3D-FRAM) WITH BURIED TRENCH CAPACITORS

A memory device comprises a series of alternating plate lines and an insulating material over a substrate. Two or more ferroelectric capacitors are through the series of alternating plate lines and an insulating material such that a first one of the ferroelectric capacitors is coupled to a first one of the plate lines and a second one of the ferroelectric capacitors is coupled to a second one of the plate lines. A plurality of substantially parallel bitlines is along a first direction over the two or more ferroelectric capacitors. A plurality of substantially parallel bitlines is along a first direction over the two or more ferroelectric capacitors. A plurality of substantially parallel wordlines is along a second direction orthogonal to the first direction over the two or more ferroelectric capacitors. An access transistor is located over and controls the two or more ferroelectric capacitors, the access transistor incorporating a first one of the bitlines and a first one of the wordlines. The bitline comprise a first source/drain of a source/drain pair, and a second source/drain is aligned, and in contact, with a top one of the two or more ferroelectric capacitors, and the first wordline forms a gate of the access transistor.

Semiconductor storage device and electronic apparatus

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.

Cell disturb prevention using a leaker device to reduce excess charge from an electronic device

An example of an apparatus includes a plurality of memory cells. At least a portion of the memory cells have a bottom electrode with each bottom electrode being at least partially electrically isolated from remaining ones of the bottom electrodes. At least one resistive interconnect electrically couples two or more of the bottom electrodes. The resistive interconnect is arranged to discharge at least a portion of excess charge from the two or more bottom electrodes. Additional apparatuses and methods of forming the apparatuses are disclosed.

Memory device and method of manufacturing the same

The present disclosure relates to a memory device, and more particularly, to a memory device including a substrate, a plurality of vertical structures disposed on the substrate and including insulation layers and lower electrodes, which are alternately laminated with each other, wherein the vertical structures are aligned in a first direction parallel to a top surface of the substrate and a second direction crossing the first direction, an upper electrode disposed on a top surface and side surfaces of each of the vertical structures, and a first dielectric layer disposed between the upper electrode and the vertical structures to cover the top surface and the side surfaces of each of the vertical structures. Here, the first dielectric layer includes a ferroelectric material.

Integrated assemblies and methods of forming integrated assemblies

Some embodiments include a method of forming an integrated assembly. Semiconductor material is patterned into a configuration which includes a set of first upwardly-projecting structures spaced from one another by first gaps, and a second upwardly-projecting structure spaced from the set by a second gap. The second gap is larger than the first gaps. Conductive material is formed along the first and second upwardly-projecting structures and within the first and second gaps. First and second segments of protective material are formed over regions of the conductive material within the second gap, and then an etch is utilized to pattern the conductive material into first conductive structures within the first gaps and into second conductive structures within the second gap. Some embodiments include integrated assemblies.

MEMORY CELL ARRANGEMENT AND METHOD THEREOF
20220139936 · 2022-05-05 ·

A memory cell arrangement is provided that may include: one or more memory cells, each of the one or more memory cells including: an electrode pillar having a bottom surface and a top surface; a memory material portion surrounding a lateral surface portion of the electrode pillar; an electrode layer surrounding the memory material portion and the lateral surface portion of the electrode pillar, wherein the electrode pillar, the memory material portion, and the electrode layer form a capacitive memory structure; and a field-effect transistor structure comprising a gate structure, wherein the bottom surface of the electrode pillar faces the gate structure and is electrically conductively connected to the gate structure, and wherein the top surface of the electrode pillar faces away from the gate structure.

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.

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.

MEMORY CELL ARRANGEMENT AND METHODS THEREOF
20220020776 · 2022-01-20 ·

A memory cell arrangement is provided that may include: a plurality of electrode layers, wherein each of the plurality of electrode layers comprises a plurality of through holes, each of the plurality of through holes extending from a first surface to a second surface of a respective electrode layer; a plurality of electrode pillars, wherein each of the plurality of electrode pillars comprises a plurality of electrode portions, wherein each of the plurality of electrode portions is disposed within a corresponding one of the plurality of through holes; wherein the respective electrode layer and a respective electrode portion of the plurality of electrode portions form a first electrode and a second electrode of a capacitor and wherein at least one memory material portion is disposed in each of the plurality of through holes in a gap between the respective electrode layer and the respective electrode portion.