Differentiating Physical Vapor Deposition from Chemical Vapor Deposition

Article written by The Digital Terror

PVD and CVD are both reliable techniques utilized in various industries today.

Physical Vapor Deposition (PVD) and Chemical Vapor Deposition (CVD) are two types of deposition techniques that are used to create very thin film layers of a material of choice onto a substrate. Mainly used in the semiconductor production industry, where thin layers are prevalent, both techniques have been making their way into any other industries as well like optics, solar panels, and others. This article will showcase the main differences between the two are the processes that they employ.

As their names imply, PVD utilizes physical forces to deposit while CVD uses chemical reactions. Regardless of the process, both of these techniques produce a thin film in the end.

Physical Vapor Deposition

During the PVD coating process, a source material is gasified through the process of evaporation, the application of electric power, lasers, and other techniques. This evaporated material will then condense onto the substrate, therefore creating the thin film. No chemical reactions occur throughout the process.

Chemical Vapor Deposition

CVD on other hand, uses a source material that is not as pure due to it being mixed with a volatile precursor material. This mixture is then injected within a chamber containing the substrate, where the deposition process occurs, similar to PVD thermal evaporation. Once the mixture adheres to the substrate, the precursor will then decompose, leaving behind a layer of the source material in the substrate. After this, the product is then removed from the chamber through gas flow. This process can also accelerated through the use of plasma, heat, and other processes.


Denton Vacuum, LLC is a premier manufacturer of the finest sputtering systems. For more information, visit them online today.

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How to Understand Aviation Starting Units’ Voltage Ranges

Written by: Start Pac

Summary: Starting units are powerful aviation tools that can provide additional power when needed.

When it comes to selecting the right type of battery packs for your aircraft, aircraft start units are the ideal solution when it comes to the majority of models. With an enhanced design, it can immediately start an aircraft ranging from a small commercial plane to a major business airplane. These starting units are powerful, durable, and efficient for use. Here is a brief overview on what you need to know when it comes to choosing the right starting unit for your plane.

How to Find a Starting Unit

When finding a portable power supply for your aircraft, the first thing that you’ll need to know is that it comes in a range of voltages (12V, 24V, and 28V). It’s not only important that you choose the right one, but you need to consider what you are going to use the starting unit for. Do you need it solely for emergency purposes, or will you be using it multiple times throughout the day? By figuring this out, you’ll be able to narrow down which unit will work best with your lifestyle.

Discussing the Voltage of Starting Units

This is only the first step, you’ll also need to understand the various voltages. It’s highly recommended that you speak to a specialist in the department that you are purchasing from to ensure that it’ll function correctly with your aircraft. Although this piece of aircraft maintenance equipment is enough for an aircraft, there are certain cases where additional power is needed. Speak with a specialist in regards to this.

For small aircraft, the voltage requirement that you’ll need is 12V. There are various sizes and models, however the larger sizes are normally for larger aircrafts. Standard DC powered aircraft require 24V DC to start up. Most of the designs have a 24V battery within, therefore it requires a 24V unit to start. Now, when it comes to these units, you have choices. You can purchase a portable unit, or you can have one that is attached to a large trolley cart. 28V units are also available – although many of these are sole with the purpose of having peace of mind, as most aircraft will start up with a 24V current. However, there are a few aircraft models that are volt sensitive and will require a 28V unit to start. Discuss this with an expert beforehand so you won’t have any difficulties when using it.

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Netflix now allows downloads

Article written by SuperTechStore

In a surprise announcement by Netflix, a much-requested feature has finally been enabled: the ability to download TV shows and movies for offline viewing. In some respects, it is surprising that it took so long for this to become a reality. There are, however, some limits.

The first is that it is limited to certain shows only. For the moment this covers almost all of Netflix’s own originals and some others. For example, shows like Orange is the New Black, Narcos and The Crown are available right now. According to Netflix, we can expect the catalog of offline capable shows to grow as the licensing deals are negotiated.

Another limitation is that it is only possible on smartphone and tablets. For the moment, it cannot be done on desktop computers or even TV compatible systems.

In order to download a show, navigate to the episode list of the show. Supported shows will have a download symbol to the left of the play button. Clicking on this will start the immediate download of that episode and will be enabled for offline playback.

With Netflix expected to produce nearly 50 shows per year for the next two years, the catalog of offline capable shows will grow. In order to avoid losing the licensing revenue from Netflix, it is also quite plausible that other networks will also allow some of their shows to be downloadable.

Netflix will be rolling out the latest version of its app which is required to download offline capable shows.

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Gadgets to Keep the Home Safe

Article written by The Software Complex

For anyone who owns a home, the number one thought that runs through their mind is whether or not they are safe on a daily basis. This desire to be safe is one of the most basic needs that to be met in order for someone to be happy. That is why it is so important for homeowners to take their safety into their own hands and keep different gadgets around the home that ensure their valuables will be kept safe. Here are a few options that can help.

One of the easiest way to keep items safe from burglars is to simply buy a safe. Many people have expensive jewelry sitting around their homes, so the first thing they should do is purchase a nice jewelry safe. This ensures that their valuable gold and diamonds will not be stolen even in the event of a break in.

In addition to this, it’s important to have a general burglary safe to store money, expensive electronics, guns, passports, and anything else that someone may want to steal. Once they are locked away inside that safe, there is no burglar in the world that can steal it as long as they don’t have access to the key code or key.

If purchasing a new safe is out of the budget, there are many stores that have used safes for sale at reasonable prices. It can’t hurt to check out some second hand stores and pawn shops to see if there are any good deals around. As long as it is in working order, there is no reason why a used safe won’t get the job done. Any protection is better than none at all.


First Security Safe is Los Angeles’ oldest and largest showroom. If you need a new or used burglary safe, visit First Security Safe online or in store.

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What is a “Freemium” App?

Article written by GigaTech

A “freemium” app is a free download that rather than charging users a flat rate, uses in-app purchases to generate revenue.

There are usually a few tiers to an app. The first tier is always free. That’s what is referred to as “freemium”. You obtain the word “freemium” when you combine “free” and “premium”.

Mobile app developers Los Angeles—or any other city—offering freemium apps or services, bank on the idea that 1 or 2 percent of users will choose to pay for the full-featured app or service. More often than not, paying users cover the cost of freemium users. For any given app, power users pay for more functions or space.

The Pitfall

What if the app doesn’t attract 2 percent of users, who pay for the premium version? Or what if the charges aren’t enough to cover all costs? The owner of the app has two choices: get consumed in freemium flames, or charge everybody.

The Upside

As an iPhone app development company Los Angeles, you want your iPhone apps to generate at least some revenue. Here’s what you can do to realize success in your company: give the business enough time and more free users may just decide pay for your services.

Today, mobile app development Los Angeles has become more popular than ever. Companies looking to succeed in this industry need to know that a free app is downloaded more, compared to a paid app. Consequently, the number of in-app purchases exceed what a premium version could make.


Halcyon Innovation is a group of Android and iPhone app developers from Los Angeles. Halcyon makes applications for businesses around the globe.

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Top Android Tablets

There is an amazing number of new Android tablets paving their way in the market. With all these choices, consumers might be confounded when it comes to buying their new device. The list below depicts some of the best 8-inch Android tablets of this year.

Google Nexus 9
This is the first tablet that will be sold with Android 5.0 Lollipop straight out of the box. The 9 is the successor of the Nexus 7. It is known to be one of the toughest rivals to the iPad. This tablet is manufactured by HTC and its touchscreen comes in 8.9 inches. It comes with Corning Gorilla Glass 3 protection. The resolution is 1536 x 2048. The main factor that brings an edge to this tablet is the fact that it has been designed with particular consideration for the latest OS release.

Samsung Galaxy Tab S
The Galaxy Tab S comes in 2 versions, the 10.5 inches screen and the other one is 8.4 inches. The screen features the AMOLED technology and the tablet is quite lightweight and extremely slim. Features and performance are some of the key strengths of this tablet.

Lenovo Yoga Tablet 2
This tablet has an 8-inch LCD screen. The resolution is of 1920 x 1200 and the density is at 283 ppi. The Wi-Fi version is quite lightweight at around 419g. The tablet comes with a quad-core processor and clocks at 1.33 GHz. It comprises of a 3GB RAM and 16GB internal storage. This is a good affordable tablet.

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