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Últimas publicaciones y patentes sobre deposición química de vapor (CVD)

Deposición química de vapor

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Deposición química de vapor
La deposición química de vapor crea películas delgadas de alta calidad a través de reacciones en fase de vapor, con aplicaciones en materiales avanzados y fabricación de semiconductores.

Chemical Vapor Deposition (CVD) is a major thin film fabrication technique involving chemical reactions of vapor-phase precursors on heated substrates to produce high-purity, conformal coatings with precise control over thickness and composition. This domain integrates interactions among precursor chemistry, gas flow dynamics, surface reactions, and thermal management within specialized reactor environments. Applications span from semiconductor device manufacturing, protective coatings, to advanced materials synthesis. Our following compilation presents the latest peer-reviewed publications and patents, reflecting advancements in reactor design, precursor development, process optimization, and novel CVD modalities such as plasma-enhanced and metal-organic CVD.

This is our latest selection of worldwide publications and patents in english on Chemical Vapor Deposition (CVD), between many scientific online journals, classified and focused on CVD, Chemical Vapor Deposition, thin película deposition, precursor gas, substrate heating, deposition rate, film uniformity, gas flow dynamic, surface reactions, nucleation, film growth mechanism, thermal CVD, plasma-enhanced CVD, metal-organic CVD, atomic layer deposition, ALD, deposition temperature, carrier gas, film thickness control, conformality, deposition pressure, chemical precursors, film morphology, deposition kinetics, gas phase reactions, surface diffusion, CVD reactor and deposition selectivity.

Flash pyrolysis of organic materials with a co-flow moving-bed reactor

Patent published on the 2026-10-15 in WO under Ref WO2026217944 by UNIV OF WYOMING [US] (Ellis Elijah [us], Behrens Paul [us], Pfeiffer Trina Igelsrud [us])

Abstract: A method for flash pyrolysis includes flash pyrolyzing a solid feedstock into a pyrolysis char and a pyrolysis vapor. The flash pyrolyzing includes introducing the solid feedstock and a carrier gas into a flash pyrolysis reactor as a gas-solid mixture for about 0.05 seconds to about 0.4 seconds; heating the gas-solid mixture to a temperature of about 1000°C to about 1200°C; and flowing the carrier gas at a gas flow rate is about 10 L/min to about 20 L/min and a pressure of about 700 Torr to ab[...]


Our summary: The method involves flash pyrolyzing solid feedstock into char and vapor. A gas-solid mixture is heated rapidly in a reactor at high temperatures. The resulting pyrolysis vapor is then separated into liquid and process gas.

pyrolysis, reactor, feedstock, gas-solid

Patent

Method for producing white fragments of lignin

Patent published on the 2026-10-15 in WO under Ref WO2026215252 by BLOOM BIORENEWABLES SA [CH] (Charmillot Justine [ch], Scholten Philip Benjamin Vincent [ch], Manker Lorenz [ch])

Abstract: The present invention relates to a method for producing white fragments of lignin, wherein the method comprises the steps of a) providing an acetal protected fragment of lignin obtained by aldehyde assisted fractionation, wherein the aldehyde is selected from the group consisting of propionaldehyde, formaldehyde and glyoxylic acid, b) bringing the acetal protected lignin fragments in a reaction medium containing at least 10% (v/v) of an organic solvent into contact with hydrogen peroxide in the [...]


Our summary: A method is described for producing white lignin fragments using acetal protection. The process involves fractionating lignin with aldehydes and bleaching it with hydrogen peroxide. A nitrogen-containing organic basic catalyst is used in an organic solvent reaction medium.

Lignin, Bleaching, Organic Solvent, Hydrogen Peroxide

Patent

Controlled synthesis of seeding nanocrystals for the fabrication of transparent conducting perovskite oxides on non-epitaxial substrates

Patent published on the 2026-10-15 in US under Ref US20260317952 by WISCONSIN ALUMNI RES FOUNDATION [US] (Evans Paul Gregory [us], Kannu Lakshmi Kumar Chinna [us], Marandu Maureen [us], Liu Rui [us])

Abstract: Transparent conducting oxide (TCO) films composed of transparent, electrically conducting, perovskite oxides (TCPOs) and methods of making the films are provided. The TCPOs are crystallized from their corresponding amorphous films using embedded crystalline perovskite oxide seeds as nucleation sites. The amorphous films have the same complex oxide composition as the TCPO but are in an amorphous form. The crystalline perovskite oxide seeds are themselves formed on a substrate from a thin amorphou[...]


Our summary: The study presents a method for synthesizing transparent conducting perovskite oxides using seeding nanocrystals. It describes the crystallization of amorphous films into TCPOs through embedded crystalline seeds. This approach allows for the fabrication of films without the constraints of epitaxial growth substrates.

nanocrystals, transparent conducting oxides, perovskite, nucleation

Patent

The smart internet of things (iot)- enabled shower system with advanced safety measures

Patent published on the 2026-10-15 in US under Ref US20260319446 by HOSSAIN SHADEEB [US] (Hossain Shadeeb [us])

Abstract: [0000] The Smart IoT-Enabled Intelligent Shower System enhances safety in slippery shower environments by detecting distress signals using parallel acoustic sensors. A microcontroller processes signals and transmits data to an IoT platform, where spectrogram analysis and CNN-based image recognition validate emergencies and trigger automated responses. The system can shut off the shower nozzle upon distress detection and alert emergency contacts. A GUI allows users to monitor water and energy con[...]


Our summary: The smart IoT-enabled shower system detects distress signals with acoustic sensors and processes them via a microcontroller. It triggers automated responses, including shutting off the shower and alerting emergency contacts. Users can monitor consumption and customize settings through a GUI while maintaining safe water temperatures.

IoT, safety, sensors, automation

Patent

Electrolyzer system for hydrogen production from a wastewater feedstock and method for optimizing same

Patent published on the 2026-10-08 in WO under Ref WO2026207618 by HYDROTHERMIA INC [CA] (Barco-burgos Jimmy [ca], Claros Gilberto Lozada [co])

Abstract: An electrolyzer system and associated design and optimization methods are disclosed for producing hydrogen gas from an impure wastewater feedstock. Electrode temperature mapping and analysis of thermoelectric phenomena, including Joule/Thomson effects in homogeneous conductive electrodes such as 316L stainless steel, are used to identify localized oxidation and reduction regions and correlate them with gas bubble nucleation and detachment. These findings, together with electrode material charact[...]


Our summary: An electrolyzer system is designed for hydrogen production from impure wastewater. Electrode temperature mapping identifies oxidation and reduction regions to improve gas bubble detachment. Optimized electrodes with microchannel networks enhance energy efficiency and hydrogen output.

Electrolyzer, Hydrogen production, Wastewater feedstock, Computational fluid dynamics

Patent

System and methods for controlling material synthesis via electrochemical reactions

Patent published on the 2026-10-08 in US under Ref US20260308774 by QUANTOM LLC [US] (Fawcett Matthew Michael [nl])

Abstract: [0000] Devices and methods are provided for controlled nucleation and growth of materials in electrochemical environments. The technology utilizes conductive seed materials positioned on or near electrodes to act as nucleation centers for electrochemically generated growth species. By applying pulsed electrical stimulation in the presence of suitable chemical precursors, material formation is initiated at the seed sites and can propagate via self-propagating nucleation, where newly formed materi[...]


Our summary: This technology enables controlled nucleation and growth of materials using conductive seed materials near electrodes. Pulsed electrical stimulation initiates material formation at seed sites, allowing for self-propagating nucleation. The approach enhances control over material properties and is scalable for various materials, including carbon-based ones from CO2.

electrochemical synthesis, nucleation control, material growth, pulsed electrical stimulation

Patent

Heralded generation of multipartite free-electron W-State entanglement

Published on 2026-09-01 by Du Ran, Jing-Yi Liu, Dan Jin, Shuai Liu, Reuven Ianconescu, Ze-Long He, Ji-Yuan Bai, Ya-Dong Li and Avraham Gover @IOP SCIENCE

Abstract: We propose a heralded protocol for transferring atomic single-excitation entanglement to free electrons in a sideband-resolved interaction geometry. Each electron couples locally to one two-level system, and projection of the atomic subsystem onto the all-ground state maps the atomic excitation manifold onto the electronic upper-sideband manifold. For uniform couplings and common detuning, the rotating-wave dynamics is solved analytically and yields an exact phase-matched electronic state. At re[...]


Our summary: The proposed protocol transfers atomic single-excitation entanglement to free electrons using a sideband-resolved interaction. It achieves an exact phase-matched electronic state and characterizes multipartite structure through correlation redistribution. Robustness analyses address various factors impacting heralding probability and fidelity.

entanglement, free-electrons, heralded-protocol, quantum-optics

Publication

Heralded ultrafast generation of macroscopic quantum states in matter with bright squeezed vacuum light

Published on 2026-07-15 by Shohei Imai @IOP SCIENCE

Abstract: We show that bright squeezed vacuum light, combined with a single-shot quadrature measurement of the post-interaction light, enables the ultrafast generation of macroscopic quantum states in matter. Although in the weak-coupling regime multiphoton quantum light leaves the unconditional matter state as a classical mixture due to light–matter entanglement, quadrature-based heralding prepares the matter in a Gaussian-weighted quantum superposition of laser-driven matter states. For an ensemble of[...]


Our summary: Bright squeezed vacuum light enables ultrafast generation of macroscopic quantum states in matter. Quadrature measurement prepares matter in a Gaussian-weighted quantum superposition. The results facilitate ultrafast engineering of macroscopic quantum matter with strong-field quantum light.

squeezed vacuum light, macroscopic quantum states, quadrature measurement, light-matter entanglement

Publication

Temas tratados: Deposición química en fase vapor, fabricación de películas finas, reacciones en fase vapor, revestimientos de alta pureza, revestimientos conformados, química de precursores, dinámica de flujo de gases, reacciones superficiales, gestión térmica, fabricación de semiconductores, diseño de reactores, optimización de procesos, CVD mejorado por plasma, CVD metalorgánico, síntesis de materiales avanzados, publicaciones revisadas por pares, patentes ISO 14644, ASTM E2871, SEMI C3, IEC 61000 e ISO 9001....

Glosario de términos utilizados

Chemical Vapor Deposition (CVD): Proceso utilizado para producir películas delgadas o recubrimientos sobre sustratos mediante la reacción química de precursores gaseosos, lo que resulta en la deposición de material sólido. Se emplea comúnmente en la fabricación de semiconductores y la ciencia de los materiales.

Contexto histórico

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décimo año aniversario

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