#chemical vapor deposition

[charyou-tree]

Is it so hard for a girl to buy a wafer of CVD diamond the size of a credit card?

[materialsscienceandengineering]

Aligned array of nanotubes

Processing Chemical vapour deposition onto a quartz substrate, using a fine solution of ferrocene dissolved in toluene Applications Such architectures may be of interest as nanocomposites for use in nanodevices. More generally, carbon nanotubes may be used for hydrogen storage or for fuel cell applications Sample preparation The specimen has been sputter-coated with gold to avoid charging in the SEM Technique Scanning electron microscopy (SEM) Length bar 25 μm Further information Chemical vapour deposition (CVD) allows the synthesis of high purity nanotubes of controlled length and diameter. The nanotubes in this specimen were deposited on quartz using ferrocene dissolved in toluene. They are approximately 40 nm in diameter and 60 microns long. Contributor C Singh Organisation Department of Materials Science and Metallurgy, University of Cambridge

Source.

[bluewave-semi]

Advanced hot filament chemical vapor deposition system by Blue Wave Semiconductors

Blue Wave Semiconductors provides a high-quality hot filament chemical vapor deposition (HFCVD) system for precise and efficient thin-film growth. Our HFCVD technology enables uniform deposition of high-purity coatings, making it ideal for semiconductor, diamond, and nanomaterial applications. Designed for superior control and repeatability, our system enhances material properties while ensuring excellent adhesion and structural integrity.

[global-research-report]

The Evolution of Chemical Vapor Deposition: Innovations, Materials, and Future Market Opportunities

The global chemical vapor deposition market size is anticipated to reach USD 40.73 billion by 2030 and expand at a CAGR of 9.0% during the forecast period, according to a new report by Grand View Research, Inc. The rapid development in technology facilitating the increasing use of chemical vapor deposition (CVD) process in several applications is expected to drive the market growth over the forecast period.

The rising demand for high-performance materials in aerospace and electronics industry is an important market driver. In addition, government initiatives in emerging economies to increase semiconductor production & innovation in manufacturing technologies are further expected to drive the market.

The key players in the market are keen on advancing chemical vapor deposition technologies with improvements in the components and efficient controls. A new class of CVD machines is being developed where a thin film deposition is done in a wide range of durability, scalability, and tenability with independent control for ion current density and ion energy.

The supply chain design in case of chemical vapor deposition is very complex. The reliance on the complexity of the supply chain is anticipated to grow in the next few years. As a result, companies are restructuring and realigning their businesses to optimize cost structure, increase operational efficiency and effectiveness, reinforce competitive positioning, and hedge against potential supply chain disruptions.

For the market, the threat of substitutes has remained on lower side as product development and technological development are carried out to achieve better reliability and durability with other chemical & physical properties. Moreover, growth in advanced technology, cost reduction, and environment-friendly nature of chemical vapor deposition lead to a higher opportunity for advancements over electroplating.

Market entry strategies are various ways that companies adopt to enter into new or foreign markets. Companies generally use strategies that include licensing, direct exporting, partnering, joint ventures, turnkey projects, acquisitions, and green-field investments. Market entry strategies depend on numerous factors, including tariff rates, trade barriers, competition, export subsidies, price localization, and transportation costs. Hence, key players have adopted various Go-to-Market strategies to develop the market as per their strengths.

Chemical Vapor Deposition Market Report Highlights

The CVD equipment segment led the market and accounted for 65.4% of the global CVD market revenue in 2023, owing to the ability of CVD equipment to offer advanced packaging solutions to the semiconductor industry and adoption of CVD materials for wafer-level packaging

The CVD services segment is likely to grow at a significant pace over the forecast period as companies operating in the electronics industry are increasingly adopting environmentally sustainable and RoHS-compliant coatings and films on products

The semiconductor & microelectronics segment accounted for largest market revenue share in 2023, as CVD is critical in fabricating high-frequency and high-speed semiconductors in 5G infrastructure. In addition, CVD is used to grow high-quality epitaxial silicon carbide (SiC) layers for power electronics

The medical equipment segment is likely to grow at a significant pace over the forecast period, owing to the ability of CVD to coat medical devices used in drug-delivery devices. Further, the increasing prevalence of chronic diseases and the need for efficient drug-delivery systems have led to the development of implantable drug-delivery devices

Asia Pacific dominated the market and accounted for 51.9% market share in 2023 as many semiconductor processors and manufacturers have established their production facilities in Asia Pacific due to favorable government policies towards semiconductor production and high demand for consumer electronics in the region

The North American market accounted for second largest market share in 2023 as CVD technology enables the production of sophisticated microelectronics, meeting the evolving needs for miniaturization in aerospace, automobile, and defense sector

In February 2023, Veeco Instruments, Inc. announced its acquisition of Epiluvac AB, a company that specializes in manufacturing chemical vapor deposition (CVD) epitaxy systems. These systems are crucial in facilitating advanced silicon carbide (SiC) related applications within the electric vehicle sector. The combination of Epiluvac's technology platform with Veeco's extensive global market capabilities creates a significant long-term growth opportunity for Veeco

Chemical Vapor Deposition Market Segmentation

Grand View Research has segmented the global chemical vapor deposition market based on category, application, and region:

Chemical Vapor Deposition Category Outlook (Revenue, USD Billion, 2018 - 2030)

CVD Equipment

CVD Materials

CVD Services

Chemical Vapor Deposition Application Outlook (Revenue, USD Billion, 2018 - 2030)

Semiconductor & Microelectronics

Data Storage

Solar Products

Cutting Tools

Medical Equipment

Other

Chemical Vapor Deposition Regional Outlook (Revenue, USD Billion; 2018 - 2030)

North America

US

Canada

Mexico

Europe

UK

Germany

France

Spain

Italy

Asia Pacific

China

Japan

India

South Korea

Australia

Central & South America

Brazil

Argentina

Middle East & Africa

Saudi Arabia

South Africa

Key Players in the Chemical Vapor Deposition Market

CVD Equipment Corporation

Tokyo Electron Limited.

IHI Corporation

Veeco Instruments Inc.

ASM International N.V.

Plasma-Therm LLC

Applied Materials, Inc.

OC Oerlikon Management AG

voestalpine AG

ULVAC Inc.

Aixtron SE

Order a free sample PDF of the Chemical Vapor Deposition Market Intelligence Study, published by Grand View Research.

[medicaldevicesindustrynews]

Understanding the Importance of Semiconductor Chemical Vapor Deposition Equipment

In the complex world of semiconductor production, Chemical Vapor Deposition (CVD) equipment is an important driver in technological upgrading. With the growing trend for smaller and faster, yet ever more efficient electronic equipment, Semiconductor CVD equipment has become increasingly important. Let’s take a look at this new technology and the part it comes to play. The Secrets of…

[literaryvein-reblogs]

Some Weather-related Vocabulary

for your next poem/story

Barometer - an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude

Blizzard - a long severe snowstorm; an intensely strong cold wind filled with fine snow

Breezy - swept by breezes (i.e., a light gentle wind)

Chilly - noticeably cold; chilling

Clear - cloudless

Cloudy - overcast with clouds

Cold front - an advancing edge of a cold air mass

Flurry - a gust of wind; a brief light snowfall

Fog - vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the ground

Forecast - to calculate or predict (some future event or condition) usually as a result of study and analysis of available pertinent data; especially: to predict (weather conditions) on the basis of correlated meteorological

Global warming - an increase in the earth's atmospheric and oceanic temperatures widely predicted to occur due to an increase in the greenhouse effect resulting especially from pollution

Gust - a sudden brief rush of wind

Hail - precipitation in the form of small balls or lumps usually consisting of concentric layers of clear ice and compact snow

Hazy - made dim or cloudy by or as if by fine dust, smoke, or light vapor in the air; obscured by or as if by haze

Heat - to become warm or hot

High-pressure - having or involving a high or comparatively high pressure especially greatly exceeding that of the atmosphere; having a high barometric pressure

Humid - containing or characterized by perceptible moisture especially to the point of being oppressive

Humidity - a moderate degree of wetness especially of the atmosphere

Hurricane - a tropical cyclone with winds of 74 miles (119 kilometers) per hour or greater that is usually accompanied by rain, thunder, and lightning, and that sometimes moves into temperate latitudes

Lightning - the flashing of light produced by a discharge of atmospheric electricity

Muggy - being warm, damp, and close

Overcast - clouded over

Pollution - the action of polluting, especially: the action of making an environment unsuitable or unsafe for use by introducing man-made waste

Pour - to rain hard

Precipitation - something precipitated, such as a deposit on the earth of hail, mist, rain, sleet, or snow

Rain - water falling in drops condensed from vapor in the atmosphere

Shower - a fall of rain of short duration

Smog - a fog made heavier and darker by smoke and chemical fumes

If any of these words make their way into your next poem/story, please tag me, or send me a link. I would love to read them!

Sources: 1 2 ⚜ More: Word Lists ⚜ Air/Wind ⚜ Temperature

[raven-silly]

A while ago, I saw a post mentioning something about "putting chemicals in swords to make them gay," which made me wonder what it would take to create a rainbow-colored sword or one with a striking iridescent effect. And since I'm gay and a chemist, I felt the need to investigate further.

For a purely aesthetic sword, it is sufficient to choose an appropriate coating deposition method (or even make the sword from a single material). This could be achieved through physical vapor deposition (PVD) or titanium anodization.

The latter technique is quite common in jewelry. In chemistry, it is more commonly known as passivation, which involves forming a "protective layer" of oxide on the metal in question. A common example is aluminum (Al), which, upon contact with atmospheric oxygen, becomes coated with its own oxide (Al₂O₃), preventing the inner part of the metal from continuing to react. This process can occur naturally or be induced artificially using an electric charge, either with an oxide of the same metal or another (such as in galvanization). In metallurgy, physical vapor deposition is more commonly used, as it better ensures the durability of both the coating and the coated metal. Therefore, we will stick with this option.

Since the goal is to create a practical and "gay" sword, the choice of blade metal is crucial. Titanium might seem like a good option since it is durable and can be anodized to form different colors depending on the thickness of the oxide layer. However, while this sounds simple and quick, it is not actually feasible, as titanium is too soft and flexible, negating the primary functions of a sword blade. Instead, we opt for a more conventional steel, such as 1075 (iron with a carbon content between 0.7% and 0.8%).

Once the blade has been forged and heat-treated, it must undergo a meticulous polishing and cleaning process to remove any traces of rust or impurities. At this point, it is ready for the PVD application.

For the coating, I consider titanium oxide (TiO₂) to be the best option, not only because it provides the desired iridescent appearance but also due to its high resistance to abrasion, corrosion, and its exceptional hardness. To achieve iridescent effects, layers of varying thickness (between 50 and 200 nanometers) must be applied. This can be accomplished by adjusting deposition angles, thermal controls, exposure time, and flow blockages, which could also enable patterned finishes.

Once the titanium dioxide deposition is complete, the blade can be assembled.

Now, this is purely theoretical and I did this while being sleep deprived (there is no word for "desvelarse" in English? That's lame), so I tried to make everything realistic, but I don't know if I'm right or anything, approach with care to anything I say and everything I said.

[silverbirching]

Are manufactured diamonds really indistinguishable from natural diamonds? And do you have an opinion on whether manufactured diamonds will make natural diamonds obsolete?

Physically? Chemically? Yup, they are in every way, shape and form diamonds. Back in the old days, when they made synthetic diamonds via a process called chemical vapor deposition, it was sometimes possible to distinguish them visually under magnification. Nowadays, the technology has improved to the point where I, a graduate gemologist, cannot visually distinguish between them with any of the tools I have available. Advanced laboratory testing and very expensive equipment is required.

They've certainly caused a shake-up in the diamond industry, with the price of LG crashing tremendously the last two years and taking the price of earth-mined with it. Long term...? Obsolescence is a spectrum. If the earth-mined diamond industry tanks, so will the supply, prices will rise... it'll be interesting to see. I think earth-mined will still have some cachet once things level off. We've had synthetic colored stones for 150 years at this point, and people still want Columbian emeralds.

Now, what I think is SUPER COOL about LG diamonds is that because the material is so cheap, comparatively speaking, they're doing REALLY AWESOME THINGS with them. Like this ring, carved entirely out of a lab grown-diamond:

Or this super unique flame-cut diamond:

People are experimenting with weird shapes, odd colors, oddball cuts and experimental designs, which I think is SUPER COOL. Diamonds are beautiful (I'm aware of the industry and synthetic demand and all that jazz. The fact remains, they are beautiful stones. Look at a well-cut diamond in good lighting. They are stunning and magical) and I'm really excited to see what they'll come up with next, design-wise. I wear lab-grown diamonds. So does my husband. I like 'em.

[spacetimewithstuartgary]

Asteroid impact sulfur release less lethal in dinosaur extinction

Approximately 66 million years ago, the Chicxulub asteroid, estimated to be 10-15 kilometer in diameter, struck the Yucatán Peninsula (in current-day Mexico), creating a 200-kilometer-wide impact crater. This impact triggered a chain reaction of destructive events including a rapid climate change that eventually led to the extinction of the non-avian dinosaurs and in total about 75% of species on Earth. The main culprit is most likely the “impact winter”, which was caused by massive release of dust, soot, and sulfur into the atmosphere, leading to extreme cold, darkness, and a collapse in global photosynthesis, with lasting effects on ecosystems for years to decades after impact.

Most previous studies considered sulfur as the most crucial factor in driving the cooling and extinction after the impact event. However, estimates of the volume of sulfate aerosols released from the vaporization of the impacted rocks in Mexico have varied widely over two orders of magnitude from one study to another. This is because such estimates are largely based on uncertain parameters, such as the proportion of sulfur-bearing rocks at the impact location, the size, velocity, and impact angle of the asteroid, and the resulting shock pressures of sulfur-bearing minerals.

In the new study, Katarina Rodiouchkina and colleagues used sulfur concentrations and isotopic compositions from new drill cores of impact rocks within the crater region, combined with detailed chemical profiles across K-Pg boundary sediments around the world. This way, the authors were able to empirically estimate, for the first time, the total amount of sulfur released into the atmosphere due to the Chicxulub asteroid impact event.

“Instead of focusing on the impact event itself, we focused on the aftermath of the impact “, explains chemist Katerina Rodiouchkina. “We first analyzed the sulfur fingerprint of the rocks within the crater region that were the source of sulfate aerosols released into the atmosphere. These sulfate aerosols distributed globally and were eventually deposited from the atmosphere back onto the Earth’s surface in the months to years after impact. The sulfur was deposited around the K-Pg boundary layer in sedimentary profiles all over the world. We used the corresponding change in the isotopic composition of sulfur to distinguish impact-related sulfur from natural sources and the total amount of sulfur released was calculated through mass balance.“

The scientists revealed that a total of 67 ± 39 billion tons of sulfur were released, approximately five times less than previously estimated in numerical models. This suggests a milder "impact winter" than previously believed, leading to a less severe temperature decline and faster climate recovery, which could have contributed to the survival of at least 25% of species on Earth following the event. While sulfur remains the primary driver of global cooling, it is important to note that a recent study by the Royal Observatory of Belgium and VUB suggests a massive plume of micrometer-sized fine dust may have played a crucial role in creating a two-year-long dark period, blocking photosynthesis and further compounding the environmental impacts.

[tasnjewel]

How are pink lab-grown diamonds graded for color and clarity?

The Travels of a Lab-Grown Pink Diamond

In order to better understand the grading procedure, let's examine the path a pink lab-grown diamond takes from formation to certification:

The diamond is first produced in a state-of-the-art laboratory using either Chemical Vapor Deposition (CVD) or High Pressure High Temperature (HPHT) methods.

Certain trace elements, like boron, can be added during the growth phase to produce the pink color, or post-growth treatments like heat and radiation can do the same.

Pink diamonds are rated using an elaborate color system, in contrast to colorless diamonds.

[materialsscienceandengineering]

Research team develops a more durable coating against ice

Ice-repellent coatings have been around for some time, but until now they have been very sensitive and detach quite quickly from the surfaces they are meant to protect. A research team led by Anna Maria Coclite and Gabriel Hernández Rodríguez from the Institute of Solid State Physics at Graz University of Technology (TU Graz) has now succeeded in remedying this shortcoming. They have developed a highly ice-repellent coating that adheres to a wide variety of materials and is very resistant to abrasion. The team's paper is published in the journal ACS Applied Materials & Interfaces. The researchers achieved this progress by using a manufacturing technology called initiated chemical vapor deposition (iCVD). This makes it possible for a strongly adhesive primer material to gradually transition into the ice-repellent compound.

Read more.

[bluewave-semi]

Hot filament chemical vapor deposition for durable thin films

Hot filament chemical vapor deposition (HFCVD) is a proven method for creating durable and high-quality thin films. Using heated filaments, this technique facilitates precise deposition of materials on various substrates, making it ideal for applications in electronics, coatings, and advanced materials. HFCVD offers efficiency, reliability, and exceptional film uniformity for research and industrial purposes.

[pepminn]

Ethical and Sustainable: The Beauty of Lab-Grown Diamonds

Introduction:

Lab-grown diamonds, also known as synthetic diamonds, are created in a laboratory using advanced technology that mimics the natural diamond formation process. Unlike mined diamonds, lab-grown diamonds are not extracted from the earth, making them a more sustainable and ethical alternative.

The Science Behind Lab-Grown Diamonds:

Explain the chemical vapor deposition (CVD) and high-pressure, high-temperature (HPHT) methods used to create lab-grown diamonds.

Discuss the similarities and differences between lab-grown diamonds and mined diamonds in terms of their physical properties.

Benefits of Lab-Grown Diamonds:

Ethical and sustainable: Lab-grown diamonds are conflict-free and do not contribute to environmental damage associated with mining.

Affordability: Lab-grown diamonds are often more affordable than mined diamonds of the same quality.

Customization: Lab-grown diamonds can be customized to specific specifications, allowing for unique and personalized jewelry.

Durability: Lab-grown diamonds are just as durable as mined diamonds and can be set in the same types of jewelry.

Choosing a Lab-Grown Diamond:

Discuss factors to consider when selecting a lab-grown diamond, such as carat weight, cut, clarity, and color.

Explain the importance of working with a reputable jeweler who specializes in lab-grown diamonds.

The Future of Lab-Grown Diamonds:

Explore the growing popularity of lab-grown diamonds and their potential to disrupt the traditional diamond industry.

Discuss the ethical and environmental implications of choosing lab-grown diamonds over mined diamonds.

Conclusion:

Lab-grown diamonds offer a beautiful and ethical alternative to mined diamonds. With their affordability, customization options, and sustainability benefits, lab-grown diamonds are gaining popularity among consumers who value both style and ethical considerations.

[labgrown-diamond-ring]

Lab Grown Diamond Jewellery 💍 https://www.etsy.com/shop/PureStarDiamonds?ref=seller-platform-mcnav&section_id=48330515

The Sparkling Future of Luxury: Lab-Grown Diamond Jewellery 💍

In recent years, lab-grown diamonds have emerged as a revolutionary option in the world of fine jewelry. Offering the same brilliance and beauty as mined diamonds, these gems are quickly becoming the go-to choice for environmentally and ethically conscious consumers. But what exactly are lab-grown diamonds, and why are they gaining so much popularity? Let's delve into the world of these stunning, sustainable gems.

What Are Lab-Grown Diamonds?

Lab-grown diamonds, also known as synthetic or cultured diamonds, are created in a controlled laboratory environment using advanced technological processes that mimic the natural formation of diamonds. These processes involve high pressure and high temperature (HPHT) or chemical vapor deposition (CVD), both of which produce diamonds that are chemically, physically, and optically identical to those found in nature.

The Benefits of Lab-Grown Diamonds

Ethical Sourcing: Traditional diamond mining has long been associated with environmental destruction, human rights violations, and unethical labor practices. Lab-grown diamonds, however, are produced without the need for mining, ensuring that they are free from these ethical concerns. Consumers can enjoy their jewelry with the peace of mind that comes from knowing their diamonds are conflict-free.

Environmental Sustainability: Mining for natural diamonds can have a devastating impact on the environment, including deforestation, soil erosion, and habitat destruction. Lab-grown diamonds, on the other hand, have a significantly smaller environmental footprint. The production process requires less energy and water and generates fewer carbon emissions, making them a more sustainable choice.

Affordability: One of the most attractive benefits of lab-grown diamonds is their cost. These diamonds are generally 20-40% less expensive than their mined counterparts, making luxury more accessible to a broader audience. This price difference allows consumers to invest in higher quality or larger diamonds without breaking the bank.

Quality and Variety: Lab-grown diamonds are available in a wide range of sizes, shapes, and colors, offering more variety for consumers. Advances in technology also mean that lab-grown diamonds can be produced with fewer inclusions and impurities, resulting in exceptional clarity and brilliance.

Embracing the Future of Jewelry

As more consumers become aware of the benefits of lab-grown diamonds, the demand for these ethical and sustainable gems continues to rise. Major jewelry brands and designers are incorporating lab-grown diamonds into their collections, offering everything from engagement rings and wedding bands to earrings, necklaces, and bracelets.

Whether you are looking for a stunning engagement ring that symbolizes your commitment to a better future or a beautiful piece of jewelry to celebrate a special occasion, lab-grown diamonds provide a modern, responsible choice that doesn't compromise on beauty or quality.

Conclusion

Lab-grown diamond jewelry represents the perfect fusion of innovation and elegance. These gems offer all the sparkle and allure of traditional diamonds while aligning with contemporary values of sustainability and ethical sourcing. By choosing lab-grown diamonds, you are not only investing in a piece of exquisite jewelry but also supporting a brighter, more sustainable future for our planet.

Discover the dazzling world of lab-grown diamonds today and let your jewelry make a statement of both style and conscience. 💍✨

[ll-private-jewellers]

Lab Grown Diamond Engagement Rings

Lab grown diamond engagement rings have emerged as a popular and sustainable alternative to traditional mined diamonds, offering couples the chance to embrace modern technology while still adhering to the timeless tradition of symbolizing their love and commitment. Here's what you need to know about lab-grown diamond engagement rings:

What are Lab-Grown Diamonds?

Lab-grown diamonds are real diamonds produced in a controlled environment using advanced technological processes that mimic the natural conditions under which diamonds form over billions of years. The two primary methods used to create these diamonds are High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD). Despite their artificial origin, lab-grown diamonds possess the same physical, chemical, and optical properties as their mined counterparts.

Benefits of Choosing Lab-Grown Diamonds

Sustainability: Lab-grown diamonds offer a more sustainable and environmentally friendly option than mined diamonds. Their production requires significantly less disruption to the Earth's surface and reduces the environmental damage associated with traditional diamond mining practices.

Ethical Considerations: With lab-grown diamonds, consumers can avoid the ethical concerns linked to the diamond mining industry, such as labor exploitation and funding conflict zones. This makes them an appealing choice for those looking to make socially responsible purchases.

Cost-Effectiveness: Generally, lab-grown diamonds are more affordable than natural diamonds. This price difference allows buyers to either save money or opt for a larger or higher quality diamond for the same budget.

Quality and Variety: Lab-grown diamonds come in a wide range of sizes, shapes, and colors, offering a breadth of options for customization and personalization. They are graded using the same criteria as mined diamonds (cut, color, clarity, and carat), ensuring buyers can select a high-quality gemstone that meets their preferences.

Considerations When Purchasing

Certification and Grading: Ensure your lab-grown diamond comes with a certificate from a reputable grading entity, such as the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). This documentation provides an unbiased assessment of the diamond's characteristics and authenticity.

Lab grown diamond engagement rings offer a modern, ethical, and sustainable choice for couples looking to celebrate their love. With advancements in technology continuing to improve the quality and accessibility of these diamonds, they represent a compelling option for those willing to embrace innovation without compromising on the beauty and durability that diamonds are known for.

Whether you're drawn to lab-grown diamonds for their ethical appeal, their environmental benefits, or their affordability, there's no denying that they are a symbol of progress in the jewelry industry, marrying tradition with the promise of a more sustainable future.

Shop Now - https://llprivatejewellers.com/collections/lab-grown-diamond-engagement-rings