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Chemical vapor deposition

Chemical vapor deposition (CVD) is a chemical process used to produce high quality, high-performance, solid materials. The process is often used in the semiconductor industry to produce thin films. In typical CVD, the wafer (substrate) is exposed to one or more volatile precursors, which react and/or decompose on the substrate surface to produce the desired deposit. Frequently, volatile by-products are also produced, which are removed by gas flow through the reaction chamber.

Microfabrication processes widely use CVD to deposit materials in various forms, including: monocrystalline, polycrystalline, amorphous, and epitaxial. These materials include: silicon (SiO₂, germanium, carbide, nitride, oxynitride), carbon (fiber, nanofibers, nanotubes, diamond and graphene), fluorocarbons, filaments, tungsten, titanium nitride and various high-k dielectrics.

Types

CVD is practiced in a variety of formats. These processes generally differ in the means by which chemical reactions are initiated.

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This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Chemical_vapor_deposition

Chemical Vapor Deposition (journal)

Chemical Vapor Deposition is a monthly peer-reviewed scientific journal covering materials science. It publishes Reviews, Short Communications, and Full Papers on all aspects of chemical vapor deposition and related technologies, along with other articles presenting opinion, news, conference information, and book reviews. Frequent topics covered by the journal also include inorganic chemistry, materials chemistry, organometallics, applied physics and semiconductor technology, thin films, and ceramic processing.

References

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This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Chemical_Vapor_Deposition_(journal)

Vacuum deposition

Vacuum deposition is a family of processes used to deposit layers of material atom-by-atom or molecule-by-molecule on a solid surface. These processes operate at pressures well below atmospheric pressure (i.e. vacuum). The deposited layers can range from a thickness of one atom up to millimeters, forming freestanding structures. Multiple layers of different materials can be used, for example to form optical coatings.

When the vapor source is a liquid or solid the process is called physical vapor deposition (PVD). When the source is a chemical vapor precursor the process is called chemical vapor deposition (CVD). The latter has several variants: low-pressure chemical vapor deposition (LPCVD), Plasma-enhanced chemical vapor deposition (PECVD), and plasma-assisted CVD (PACVD). Often a combination of PVD and CVD processes are used in the same or connected processing chambers.

The vacuum environment may serve one or more purposes:

reducing the particle density so that the mean free path for collision is long

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This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Vacuum_deposition

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Latest News for: chemical vapor deposition

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Lab grown diamonds find niche in new Dubai launch

Khaleejtimes 06 Nov 2024

Eviqe Diamonds, a Dubai-based company, has launched its first set of lab grown diamonds ... Leveraging advanced CVD (Chemical Vapor Deposition) technology developed by Plasmability, Eviqe produces diamonds of exceptional purity and brilliance ... Business ... .

Edit

Eviqe Diamonds unveils a new era of luxury in Dubai, revolutionising the world of lab-grown diamonds

The National 06 Nov 2024

● Innovation that defines brilliance. Leveraging advanced CVD (Chemical Vapor Deposition) technology developed by Plasmability, Eviqe produces diamonds of exceptional purity and brilliance ... ● Craftsmanship honoured with precision ... ....

Edit

SemiLink Materials to open in Stevensville

Bitterroot Star 05 Nov 2024

To oversimplify it, it relies on something called chemical vapor deposition, which essentially employs an enclosed space with the chip present. The gas is released into the space and it settles via heat, cooling or other chemical reaction.

Edit

Lucenjuri: Redefining Luxury with Cutting-Edge Diamond Craftsmanship

GetNews 29 Oct 2024

An Ethical Approach to Luxury ... Lucenjuri creates diamonds that mirror the aesthetics of mined diamonds by employing advanced processes such as High-Temperature High-Pressure (HTHP) and Chemical Vapor Deposition (CVD) ... A Brighter Future ... Media Contact.

Edit

Applied Materials (AMAT) stock: here comes the death cross

Invezz 25 Oct 2024

For example, Applied Materials is a leading player in technologies like epitaxy, Rapid Thermal Processing (RTP), Physical Vapor Deposition (PVD), Chemical Vapor Deposition (CVD), and Electrochemical Deposition (ECD) ... Read more ... Read more.

Edit

Harnessing diamond imperfections opens a new frontier in quantum sensor development

Phys Dot Org 17 Oct 2024

Finding a way to measure background noise. Led by PME Ph.D ... They grow diamond layer-by-layer through chemical vapor deposition, and can introduce only a few nanometers of nitrogen dopants to create single NV centers ... Measuring a nearby electron charge.

Edit

Carbon film with crazy electron spin life could boost quantum devices production

Interesting Engineering 05 Oct 2024

However, manufacturing CNOs on a large scale has been challenging ... The developed a proprietary chemical vapor deposition process, which enabled them to deposit the carbon film on substrates such as silicon without any difficulties ... Next step ... Source ... .

Edit

German startup unveils ‘self-aligned’ back-contact TOPCon solar cell

PV Magazine 01 Oct 2024

Underneath the undercut, which is carried out via wet chemical etching of the trench, no poly-Si is deposited during the physical vapor deposition (PVD) process.

Edit

High-energy-density cubic gauche nitrogen successfully synthesized at atmospheric pressure

Phys Dot Org 27 Sep 2024

... synthesized high-energy-density materials cubic gauche nitrogen (cg-N) at atmospheric pressure by treating potassium azide (KN3) using the plasma-enhanced chemical vapor deposition technique (PECVD).

Edit

Fraunhofer ISE claims 31.6% efficiency for perovskite-silicon tandem solar cell

PV Magazine 25 Sep 2024

The Group Leader Perovskite Materials and Interfaces at Fraunhofer ISE, Juliane Borchert, explained that the proposed process combines vapor deposition and wet chemical deposition to ensure an even ...

Edit

A chip-making powerhouse is reborn in Japan

Asiatimes 21 Sep 2024

Kokusai competes with Applied Materials and Tokyo Electron in the markets for Chemical Vapor Deposition (CVD), Atomic Layer Deposition (ALD) and other thermal process and plasma treatment equipment ...

Edit

A Brief Introduction of SiC Paddle | Semicera

GetNews 19 Sep 2024

These high-purity paddles are critical for minimizing contamination during sensitive wafer-handling processes such as chemical vapor deposition (CVD), etching, and thermal treatments.

Edit

A Brief Introduction of Wafer Paddle | Semicera

GetNews 19 Sep 2024

These wafer paddles are designed to handle the rigorous demands of semiconductor fabrication processes, such as chemical vapor deposition (CVD), etching, and oxidation, ensuring minimal contamination and maximum durability ... Media Contact. Company Name.

Edit

POLO back junction solar cell built with PECVD achieves 24.2% efficiency

PV Magazine 13 Sep 2024

... PV equipment manufacturer Centrotherm has developed a POLO back junction solar cell by using an industrial plasma enhanced chemical vapor deposition (PECVD) system with a low-frequency plasma source.

Edit

You Can Officially Buy a Diamond-Generating Machine on Alibaba

Futurism 13 Sep 2024

Lab Fad. Diamonds may be forever. But their market value? That might prove less eternal ... But to produce diamonds more efficiently, you're gonna wanna shell out at least twice that amount for a chemical vapor deposition (CVD) machine ... More on diamonds.

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