H01L21/823443

Method for manufacturing microelectronic components

A method for producing a component is provided, a base of which is formed by transistors on a substrate, including: forming a gate area, spacers, and a protective coating partly covering the spacers and a sidewall portion of a cavity without covering a top face of the gate area and a base portion of the cavity; forming a contact module, the gate located in beneath the module; and removing part of the coating with an isotropic light-ion implantation to form modified superficial parts in a thickness, respectively, of the contact module, of the coating, and of the base portion, and with an application of a plasma to: etch the modified superficial parts to only preserve, in the coating, a residual part of the coating, and to form a silicon oxide-based film on exposed surfaces, respectively, of the contact module, of the cavity, and of the coating.

Memory devices

A memory device and a method for forming the same are provided. The method includes forming a plurality of gate structures on a substrate, forming a first spacer on opposite sides of the gate structures, filling a dielectric layer between adjacent first spacers, forming a metal silicide layer on the gate structures, conformally forming a spacer material layer over the metal silicide layer, the first spacer layer and the dielectric layer, and performing an etch back process on the spacer material layer to form a second spacer on opposite sides of the metal silicide layer.

Semiconductor structure and method for manufacturing the same

A semiconductor structure and a method for manufacturing the same are provided. The semiconductor structure includes a semiconductor substrate, a silicon-containing gate electrode, and at least two gate silicide strips. The silicon-containing gate electrode is on the semiconductor substrate. The at least two gate silicide strips are on an upper surface of the silicon-containing gate electrode.

Semiconductor structure and method for forming the same

A method for forming a semiconductor structure includes forming a gate electrode layer over a semiconductor substrate, forming a first spacer layer to cover a sidewall of the gate electrode layer, recessing the first spacer layer to expose an upper portion of the sidewall of the gate electrode layer, forming a metal material to cover an upper surface and the upper portion of the sidewall of the gate electrode layer; reacting a semiconductor material of the gate electrode layer with the metal material using an anneal process to form a silicide layer, and removing the metal material after the anneal process.

SEMICONDUCTOR DEVICE STRUCTURE AND METHODS OF FORMING THE SAME

A semiconductor device structure, along with methods of forming such, are described. The structure includes a source region, a drain region, and a gate electrode layer disposed between the source region and the drain region. The gate electrode layer includes a first surface facing the source region, and the first surface includes an edge portion having a first height. The gate electrode layer further includes a second surface opposite the first surface and facing the drain region. The second surface includes an edge portion having a second height. The second height is different from the first height.

SEMICONDUCTOR STRUCTURE AND METHOD FOR FORMING THE SAME
20210398813 · 2021-12-23 ·

A method for forming a semiconductor structure includes forming a gate electrode layer over a semiconductor substrate, forming a first spacer layer to cover a sidewall of the gate electrode layer, recessing the first spacer layer to expose an upper portion of the sidewall of the gate electrode layer, forming a metal material to cover an upper surface and the upper portion of the sidewall of the gate electrode layer; reacting a semiconductor material of the gate electrode layer with the metal material using an anneal process to form a silicide layer, and removing the metal material after the anneal process.

FUSI GATED DEVICE FORMATION

Various embodiments of the present disclosure are directed towards an integrated chip including a gate dielectric structure over a substrate. A metal layer overlies the gate dielectric structure. A conductive layer overlies the metal layer. A polysilicon layer contacts opposing sides of the conductive layer. A bottom surface of the polysilicon layer is aligned with a bottom surface of the conductive layer. A dielectric layer overlies the polysilicon layer. The dielectric layer continuously extends from sidewalls of the polysilicon layer to an upper surface of the conductive layer.

Semiconductor Device and Method
20210376139 · 2021-12-02 ·

In an embodiment, a structure includes: a gate stack over a channel region of a substrate; a source/drain region adjacent the channel region; a first inter-layer dielectric (ILD) layer over the source/drain region; a silicide between the first ILD layer and the source/drain region, the silicide contacting a top surface of the source/drain region and a bottom surface of the source/drain region; and a first source/drain contact having a first portion and a second portion, the first portion of the first source/drain contact disposed between the silicide and the first ILD layer, the second portion of the first source/drain contact extending through the first ILD layer and contacting the silicide.

Manufacturing method of semiconductor device using gate-through implantation

The present disclosure provides a method of manufacturing a semiconductor device includes forming a first gate insulating film on a substrate for a first device, forming a first gate electrode on the first gate insulating film; forming a mask pattern on the first gate electrode to expose opposing end portions of the first gate electrode, wherein a length of the mask pattern is smaller than a length of the first gate electrode; performing ion implantation through the exposed opposing end portions of the first gate electrode using the mask pattern to simultaneously form first and second drift regions in the substrate; forming spacers on sidewalls of the first gate electrode, respectively; and forming a first source region and a first drain region in the first and second drift regions, respectively.

WRAP-AROUND CONTACTS INCLUDING LOCALIZED METAL SILICIDE
20220190161 · 2022-06-16 ·

A conformally deposited metal liner used for forming discrete, wrap-around contact structures is localized between pairs of gate structures and below the tops of the gate structures. Block mask patterning is employed to protect transistors over active regions of a substrate while portions of the metal liner between active regions are removed. A chamfering technique is employed to selectively remove further portions of the metal liner within the active regions. Metal silicide liners formed on the source/drain regions using the conformally deposited metal liner are electrically connected to source/drain contact metal following the deposition and patterning of a dielectric layer and subsequent metallization.