H01L21/3105

Methods for enhancing selectivity in SAM-based selective deposition

Methods of improved selectively for SAM-based selective depositions are described. Some of the methods include forming a SAM on a second surface and a carbonized layer on the first surface. The substrate is exposed to an oxygenating agent to remove the carbonized layer from the first surface, and a film is deposited on the first surface over the protected second surface. Some of the methods include overdosing a SAM molecule to form a SAM layer and SAM agglomerates, depositing a film, removing the agglomerates, reforming the SAM layer and redepositing the film.

Method for producing at least one device in compressive strained semiconductor

Method for producing a semiconductor device, including: producing, on a first region of a surface layer comprising a first semiconductor and disposed on a buried dielectric layer, a layer of a second compressive strained semiconductor along a first direction; etching a trench through the layer of the second semiconductor forming an edge of a portion of the layer of the second semiconductor oriented perpendicularly to the first direction, and wherein the bottom wall is formed by the surface layer; thermal oxidation forming in the surface layer a semiconductor compressive strained portion along the first direction and forming in the trench an oxide portion; producing, through the surface layer and/or the oxide portion, and through the buried dielectric layer, dielectric isolation portions around an assembly formed of the compressive strained semiconductor portion and the oxide portion; and wherein the first semiconductor is silicon, the second semiconductor is SiGe, and said at least one compressive strained semiconductor portion includes SiGe.

Dummy die placement without backside chipping

A method includes bonding a second package component to a first package component, bonding a third package component to the first package component, attaching a dummy die to the first package component, encapsulating the second package component, the third package component, and the dummy die in an encapsulant, and performing a planarization process to level a top surface of the second package component with a top surface of the encapsulant. After the planarization process, an upper portion of the encapsulant overlaps the dummy die. The dummy die is sawed-through to separate the dummy die into a first dummy die portion and a second dummy die portion. The upper portion of the encapsulant is also sawed through.

Semiconductor device and method

In an embodiment, a method includes: forming a fin extending from a substrate; forming a first gate mask over the fin, the first gate mask having a first width; forming a second gate mask over the fin, the second gate mask having a second width, the second width being greater than the first width; depositing a first filling layer over the first gate mask and the second gate mask; depositing a second filling layer over the first filling layer; planarizing the second filling layer with a chemical mechanical polish (CMP) process, the CMP process being performed until the first filling layer is exposed; and planarizing the first filling layer and remaining portions of the second filling layer with an etch-back process, the etch-back process etching materials of the first filling layer, the second filling layer, the first gate mask, and the second gate mask at the same rate.

Fast Fluidic Assembly Method for Nanoscale and Microscale Printing
20220373882 · 2022-11-24 ·

A scalable printing process capable of printing microscale and nanoscale features for additively manufacturing electronics is provided. This fast, directed assembly-based approach selectively prints microscale and nanoscale features on both rigid and flexible substrates. The printing speed is much faster than state-of-the-art inkjet and flexographic printing, and the resolution is two orders of magnitude higher, with minimum feature size of 100 nm. Feature patterns can be printed over large areas and require no special limitations on the assembled materials. Hydrophilic/hydrophobic patterns are used to direct deposition of nanomaterials to specific regions or to selectively assemble polymer blends to desired sites in a one-step process with high specificity and selectively. The selective deposition can be based on electrostatic forces, hydrogen bonding, or hydrophobic interactions. The methods and nanoscale patterned substrates can be used with polyelectrolytes, conductive polymers, colloids, and nanoparticles for application in electronics, sensors, energy, medical devices, and structural materials.

METHOD OF MANUFACTURING THREE-DIMENSIONAL SYSTEM-ON-CHIP AND THREE-DIMENSIONAL SYSTEM-ON-CHIP
20220375918 · 2022-11-24 ·

A method of manufacturing a three-dimensional system-on-chip, comprising providing a memory wafer structure with a first redistribution layer; disposing a first conductive structure and a core die structure and an input/output die structure with a second conductive structure on the first redistribution layer, the input/output die structure being disposed around the core die structure; forming a dielectric layer covering the core die structure, the input/output die structure, and the first conductive structure; removing a part of the dielectric layer and thinning the core die structure and a plurality of input/output die structures to expose the first and second conductive structures; forming a third redistribution layer on the dielectric layer, the third redistribution layer being electrically connected to the first and second conductive structures; forming a plurality of solder balls on the third redistribution layer; performing die saw. A three-dimensional system-on-chip is further provided.

Local interconnect with air gap

An integrated circuit includes a base comprising an insulating dielectric. A plurality of conductive lines extends vertically above the base in a spaced-apart arrangement, the plurality including a first conductive line and a second conductive line adjacent to the first conductive line. A void is between the first and second conductive lines. A cap of insulating material is located above the void and defines an upper boundary of the void such that the void is further located between the base and the cap of insulating material. In some embodiments, one or more vias contacts an upper end of one or more of the conductive lines.

Mega-sonic vibration assisted chemical mechanical planarization

A method of performing a chemical mechanical planarization (CMP) process includes holding a wafer by a retainer ring attached to a carrier, pressing the wafer against a first surface of a polishing pad, the polishing pad rotating at a first speed, dispensing a slurry on the first surface of the polishing pad, and generating vibrations at the polishing pad.

Forming method of capacitor array and semiconductor structure
11594423 · 2023-02-28 · ·

The present disclosure provides a method of forming a capacitor array and a semiconductor structure. The method of forming a capacitor array includes: providing a substrate, the substrate including an array region and a non-array region, wherein a base layer and a dielectric layer are formed in the substrate, and a first barrier layer is formed between the base layer and the dielectric layer; forming, on a surface of the dielectric layer, a first array definition layer and a second array definition layer respectively corresponding to the array region and the non-array region; forming a pattern transfer layer on a surface of each of the first array definition layer and the second array definition layer; patterning the dielectric layer and the second array definition layer by using the pattern transfer layer as a mask, and forming a capacitor array located in the array region.

Semiconductor structure with gate contact

A semiconductor structure and a method for forming the same are provided. In one form, the method includes: providing a base, a gate structure being formed on the base, a source/drain doped layer being formed within the base on both sides of the gate structure, and an initial dielectric layer being formed on the base exposed from the gate structure, the initial dielectric layer covering a top of the gate structure, and a source/drain contact plug electrically connected to the source/drain doped layer being formed within the initial dielectric layer on the top of the source/drain doped layer; removing a portion of a thickness of the initial dielectric layer to form a dielectric layer exposing a portion of a side wall of the source/drain contact plug; forming an etch stop layer on at least the side wall of source/drain contact plug exposed from the dielectric layer; etching the dielectric layer on the top of the gate structure using etch stop layers on side walls of adjacent source/drain contact plugs as lateral stop positions, to form a gate contact exposing the top of the gate structure; forming, within the gate contact, a gate contact plug electrically connected to the gate structure. Implementations of the present disclosure facilitate enlargement of a process window for forming a contact over active gate.