H01L29/66515

REPLACEMENT GATE CROSS-COUPLE FOR STATIC RANDOM-ACCESS MEMORY SCALING

A method of fabricating a static random-access memory (SRAM) device includes forming a sacrificial material and replacing the sacrificial material with a metal to form a cross-couple contact on a metal gate stack. A portion of the metal gate stack directly contacts each of a sidewall and an endwall of the cross-couple contact.

METHODS FOR LDMOS AND OTHER MOS TRANSISTORS WITH HYBRID CONTACT

A lateral DMOS transistor structure includes a substrate of a first dopant polarity, a body region of the first dopant polarity, a source region, a drift region of a second dopant polarity, a drain region, a channel region, a gate structure over the channel region, a hybrid contact implant, of the second dopant polarity, in the source region, and a respective metal contact on or within each of the source region, gate structure, and drain region. The hybrid contact implant and the metal contact together form a hybrid contact defining first, second, and third electrical junctions. The first junction is a Schottky junction formed vertically between the source metal contact and the body. The second junction is an ohmic junction formed laterally between the source metal contact and the hybrid contact implant. The third junction is a rectifying PN junction between the hybrid contact implant and the channel region.

Integrated circuit and method of manufacturing the same

Provided is an integrated circuit including a substrate, a plurality of first gate structures, a protective layer, a second gate structure, a source region, and a drain region. The substrate has a cell region and a peripheral region. The plurality of first gate structures are disposed in the cell region. A top surface and a sidewall of the plurality of first gate structures are covered by the protective layer. The second gate structure is disposed in the peripheral region. The source region and the drain region are disposed on the both side of the second gate structure. A manufacturing method of the integrated circuit is also provided.

FIN FIELD EFFECT TRANSISTOR DEVICE STRUCTURE AND METHOD FOR FORMING THE SAME

A fin field effect transistor device structure includes a fin structure formed over a substrate. The structure also includes a gate structure formed across the fin structure. The structure also includes a cap layer formed over the gate structure. The structure also includes a contact structure formed over the gate structure penetrating through the cap layer. The structure also includes an isolation film formed over sidewalls of the contact structure. The isolation film is separated from the gate structure, and a bottom surface of the isolation film is below a top surface of the cap layer.

SEMICONDUCTOR DEVICE AND METHOD OF FORMING SAME

A method includes forming a gate structure over a fin protruding above a substrate, forming a gate spacer layer on sidewalls of the gate structure, forming an etch stop layer on sidewalls of the gate spacer layer, replacing the gate structure with a gate stack, forming a source/drain contact adjacent the etch stop layer, recessing the gate stack to form a first recess, filling the first recess with a first dielectric material, recessing the source/drain contact and the etch stop layer to form a second recess, filling the second recess with a second dielectric material, recessing the second dielectric material and the gate spacer layer to form a third recess, and filling the third recess with a third dielectric material, wherein the composition of the third dielectric material is different from that of the first dielectric material and the second dielectric material.

CAPPING LAYER FOR GATE ELECTRODES

The present disclosure describes a method for forming a hard mask on a transistor's gate structure that minimizes gate spacer loss and gate height loss during the formation of self-aligned contact openings. The method includes forming spacers on sidewalls of spaced apart gate structures and disposing a dielectric layer between the gate structures. The method also includes etching top surfaces of the gate structures and top surfaces of the spacers with respect to a top surface of the dielectric layer. Additionally, the method includes depositing a hard mask layer haying a metal containing dielectric layer over the etched top surfaces of the gate structures and the spacers and etching the dielectric layer with an etching chemistry to form contact openings between the spacers, where the hard mask layer has a lower etch rate than the spacers when exposed to the etching chemistry.

Vertical field-effect transistor late gate recess process with improved inter-layer dielectric protection

A method for forming a semiconductor device is disclosed. The method includes receiving a substrate stack including at least one semiconductor fin, the substrate stack including: a bottom source/drain epi region directly below the semiconductor fin; a vertical gate structure directly above the bottom source/drain epi region and in contact with the semiconductor fin; a first inter-layer dielectric in contact with a sidewall of the vertical gate structure; and a second interlayer-layer dielectric directly above and contacting a top surface of the first inter-layer dielectric. The method further including: etching a top region of the semiconductor fin and the gate structure thereby creating a recess directly above the top region of the semiconductor fin and the vertical gate structure; and forming in the recess a top source/drain epi region directly above, and contacting, a top surface of the semiconductor fin. A novel semiconductor device structure is also disclosed.

Multi-gate device and related methods

A method of fabricating a device includes forming a dummy gate over a plurality of fins. Thereafter, a first portion of the dummy gate is removed to form a first trench that exposes a first hybrid fin and a first part of a second hybrid fin. The method further includes filling the first trench with a dielectric material disposed over the first hybrid fin and over the first part of the second hybrid fin. Thereafter, a second portion of the dummy gate is removed to form a second trench and the second trench is filled with a metal layer. The method further includes etching-back the metal layer, where a first plane defined by a first top surface of the metal layer is disposed beneath a second plane defined by a second top surface of a second part of the second hybrid fin after the etching-back the metal layer.

Semiconductor device structures with composite spacers and fabrication methods thereof
11063136 · 2021-07-13 · ·

A semiconductor device structure and fabrication method thereof are disclosed. The method may include providing a substrate; forming a gate structure on the substrate; forming a spacer structure on the gate structure, and forming a contacting conductive structure on the spacer structure. The spacer structure may cover a side wall of the gate structure, and may include a first spacer layer having a first dielectric constant and a second spacer layer having a second dielectric constant different from the first dielectric constant. The contacting conductive structure may cover a side wall of the spacer structure that is defined by a first side surface of the first spacer layer and a second side surface of the second space. The ratio of the area of the second side surface of the second spacer layer to the total area of the side wall of the spacer structure may be in a range from 78% to 98%.

Self-aligned gate contact integration with metal resistor

A middle-of-line (MOL) structure is provided and includes device and resistive memory (RM) regions. The device region includes trench silicide (TS) metallization, a first interlayer dielectric (ILD) portion and a first dielectric cap portion disposed over the TS metallization and the first ILD portion. The RM region includes a second dielectric cap portion, a second ILD portion and an RM resistor interposed between the second dielectric cap portion and the second ILD portion.