H01L21/306

IC with 3D metal-insulator-metal capacitor

An integrated circuit (IC) including a semiconductor surface layer of a substrate including functional circuitry having circuit elements formed in the semiconductor surface layer configured together with a Metal-Insulator-Metal capacitor (MIM) capacitor on the semiconductor surface layer for realizing at least one circuit function. The MIM capacitor includes a multilevel bottom capacitor plate having an upper top surface, a lower top surface, and sidewall surfaces that connect the upper and lower top surfaces (e.g., a bottom plate layer on a three-dimensional (3D) layer or the bottom capacitor plate being a 3D bottom capacitor plate). At least one capacitor dielectric layer is on the bottom capacitor plate. A top capacitor plate is on the capacitor dielectric layer, and there are contacts through a pre-metal dielectric layer to contact the top capacitor plate and the bottom capacitor plate.

IC with 3D metal-insulator-metal capacitor

An integrated circuit (IC) including a semiconductor surface layer of a substrate including functional circuitry having circuit elements formed in the semiconductor surface layer configured together with a Metal-Insulator-Metal capacitor (MIM) capacitor on the semiconductor surface layer for realizing at least one circuit function. The MIM capacitor includes a multilevel bottom capacitor plate having an upper top surface, a lower top surface, and sidewall surfaces that connect the upper and lower top surfaces (e.g., a bottom plate layer on a three-dimensional (3D) layer or the bottom capacitor plate being a 3D bottom capacitor plate). At least one capacitor dielectric layer is on the bottom capacitor plate. A top capacitor plate is on the capacitor dielectric layer, and there are contacts through a pre-metal dielectric layer to contact the top capacitor plate and the bottom capacitor plate.

SEMICONDUCTOR DEVICE
20230025796 · 2023-01-26 · ·

A semiconductor device includes a plurality of column portions including a semiconductor. The plurality of column portions each includes a source region, a drain region, and a channel formation region including a channel formed between the source region and the drain region. The semiconductor device further includes a gate electrode provided, via an insulating layer, at a side wall of the channel formation region, and also includes a first semiconductor layer provided at a side wall of the drain region. A conductive type of the first semiconductor layer differs from a conductive type of the semiconductor included in the drain region.

FIELD EFFECT TRANSISTORS COMPRISING A MATRIX OF GATE-ALL-AROUND CHANNELS
20230027293 · 2023-01-26 ·

Provided is a semiconductor structure with shared gated devices. The semiconductor structure comprises a substrate and a bottom dielectric isolation (BDI) layer on top of the substrate. The structure further comprises a pFET region that includes a p-doped Source-Drain epitaxy material and a first nanowire matrix above the BDI layer. The structure further comprises an nFET region that includes a n-doped Source-Drain epitaxy material and a second nanowire matrix above the BDI layer. The structure further comprises a conductive gate material on top of a portion of the first nanowire matrix and the second nanowire matrix. The structure further comprises a vertical dielectric pillar separating the pFET region and the nFET region. The vertical dielectric pillar extends downward through the BDI layer into the substrate. The vertical dielectric pillar further extends upward through the conductive gate material to a dielectric located above the gate region.

Semiconductor Devices with Uniform Gate Regions

The present disclosure describes a semiconductor device with substantially uniform gate regions and a method for forming the same. The method includes forming a fin structure on a substrate, the fin structure including one or more nanostructures. The method further includes removing a portion of the fin structure to expose an end of the one or more nanostructures and etching the end of the one or more nanostructures with one or more etching cycles. Each etching cycle includes purging the fin structure with hydrogen fluoride (HF), etching the end of the one or more nanostructures with a gas mixture of fluorine (F.sub.2) and HF, and removing an exhaust gas mixture including an etching byproduct. The method further includes forming an inner spacer in the etched end of the one or more nanostructures.

WAFER AND METHOD OF MAKING, AND SEMICONDUCTOR DEVICE
20230230936 · 2023-07-20 ·

The present disclosure relates to a wafer, a manufacturing method thereof, and a semiconductor device. The wafer manufacturing method includes: providing a wafer having a scribe lane for die cutting. A plurality of scribe-lane through-silicon-vias is formed at the scribe lane, and the scribe-lane through-silicon-vias are filled with a protective material to form the scribe lane. Through the technique of forming through-silicon vias at the scribe lane and filling them with protective materials, performing cutting along the line of the scribe-lane through-silicon-vias during wafer scribing, the cutting stress is reduced so and damage to the die area is prevented. The scribe-lane through-silicon-vias can effectively reduce the scribe lane width, which is conducive to miniaturizing the scribe lane and improving the effective utilization of wafers.

FACE-UP WAFER EDGE POLISHING APPARATUS
20230024009 · 2023-01-26 · ·

Exemplary substrate edge polishing apparatuses may include a chuck body defining a substrate support surface. The apparatuses may include an edge ring seated on the chuck body. The apparatuses may include a retaining wall disposed radially outward of the edge ring. The apparatuses may include a slurry delivery port disposed radially inward of the retaining wall. The apparatuses may include a cylindrical spindle that is positionable over the chuck body. The apparatuses may include an annular polishing pad coupled with a lower end of the cylindrical spindle.

PATTERNING METHOD AND METHOD OF MANUFACTURING SEMICONDUCTOR STRUCTURE
20230230842 · 2023-07-20 ·

The present disclosure relates to a patterning method and a method of manufacturing a semiconductor structure. The patterning method includes: providing a base; forming a first patterned mask layer on a surface of the base, where the first patterned mask layer includes a plurality of first mask structures extending along a first direction, and the first mask structures are arranged at intervals; forming a first dielectric layer on the first patterned mask layer, where the first dielectric layer fills up a spacing region between the first mask structures and covers an upper surface of the first patterned mask layer; and etching the first dielectric layer to form a plurality of second mask structures extending along a second direction, where the second mask structures are arranged at intervals, and the second direction intersects with the first direction; and selectively etching the first mask structure and the second mask structure.

EPITAXIAL WAFER, METHOD OF MANUFACTURING THE EPITAXIAL WAFER, AND METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE EPITAXIAL WAFER
20230232608 · 2023-07-20 ·

[summary]

An epitaxial wafer is disclosed. The epitaxial wafer includes a substrate; and a stack disposed on the substrate, wherein the stack includes silicon (Si) layers and silicon germanium (SiGe) layers alternately stacked on top of each other, wherein the silicon germanium layer is doped with boron (B) or phosphorus (P).

Method of manufacturing thin film transistor and display device including polishing capping layer coplanar with active layer

A thin film transistor includes an active layer including a first portion having a first thickness and a second portion having a second thickness greater than the first thickness, a capping layer filling a thickness difference between the first portion and the second portion and arranged on the first portion, a gate insulating layer arranged on the capping layer, a gate electrode on the active layer, wherein the gate insulating layer and the capping layer are disposed between the gate electrode and the active layer, and a source electrode and a drain electrode connected to the active layer.