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Silicon Wafers | Where Can I Find Them?

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Silicon wafers are an essential component in almost every modern electronic or consumer item. While you might not even realize it, there’s a good chance that at least one of the items in your house has wafers in it. Let’s take a deeper look at some of the different types of wafers and where you can find them if everyday life. Types of Silicon Wafers There are two different types of these wafers, undoped and doped. The undoped wafer is a pure crystalline form of silicon. It’s an ideal semiconductor and also referred to as an ‘intrinsic silicon wafer’. The doped wafer is fabricated by adding certain impurities in the silicon crystal during its formation. The doping is done by adding boron to get a P-type material. The P-type wafer has several positively-charged holes, while the N-type wafer has a negatively-charged electron in it. Doped wafers are popular in the research and development (R&D) industries. Where Can I Find These Types of Wafers? There are many types of uses that silicon wafers have in today’s modern world. Numerous types of electronic equipment, from mobile phones to airplanes, use these wafers, mainly in their electronic circuitry. Some of the more common places silicone wafers are found include: Laptops and Desktop computers Smartphones, tablet-phones, and other wearable smart gadgets Home appliances Automobiles, aerospace and drone technology Solar cell R&D and manufacturing Microchips High-power applications such as detectors and sensor devices Are You Interested in Silicon Wafers? Silicon wafers have become a common item if our everyday life, even without us noticing. If you are in need of silicon wafers for your next project, contact us today at Wafer World. Wafer World is a certified manufacturing facility for not just Silicon, but Gallium Arsenide, Germanium, Indium Phosphide, Sapphire, and Quartz.  

Silicon Wafer | What You Need to Know About Silicon Wafers

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While it might not be visible, silicon wafers are used in our everyday lives. A silicon wafer is a round piece of silicon which consists of silicon dies that are designed to perform a very specific functionally. Here are some fun facts that you need to know about silicon wafers. Silicone is More Common Than You Think Silicon is the second most common element on earth only behind oxygen. It is also the seventh most common element in the entire universe. Wafers Are Formed by Czochralski Wafers are formed with a highly pure, almost defect-free single crystal material in a process called Czochralski. During the process, silicon or germanium is made by pulling a seed crystal from a melt. Silicon Isn’t the Only Material Even though silicon is considered the most prevalent material, other compounds can be used as well. II-V or II-VI materials have also been used. Gallium arsenide is a III-V semiconductor that is produced during the Czochralski process. It’s often used as a common wafer material. Proper Storage is Key Proper storage conditions are important in order to prevent contamination and/or degradation. Wafers that are not vacuum sealed must be placed in a Nitrogen cabinet with a flow rate of 2 to 6 Standard Cubic Feet per Hour. Are You Looking for a Silicon Wafer? At Wafer World, we can help you with all of your silicon wafer needs. Contact us today to learn more about silicon wafers as well as the other products that we offer.  

Silicon Wafers | Semiconductor Fabrication Process

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Semiconductor devise fabrication is the process used to create the integrated circuits that are present in everyday electrical and electronic devices. It is a multi-step process where the electronic circuits are created on silicon wafers. Let’s take a look at some of the steps that go into the semiconductor fabrication process. Lithography Lithography is a process that is used to transfer a pattern from a photomask to the surface of the wafer. The pattern information is recorded on a layer of photoresist which is then applied to the top of the wafer. The photoresist is either developed by wet or dry etching and changes its properties when exposed to various forms of light or illumination. Etching Etching is used to remove material in order to create a specific pattern. The material that is removed can be done by either wet or dry etching. Wet etching is chemical while dry etching is performing the etching by hand. Wet etching is not suited to transfer patterns with sub-micron feature size. It does, however, have a high selectivity and it does not damage the material. Dry etching, on the other hand, is highly anisotropic and less selective but is more capable of transferring small structures. Deposition Multiple layers of different materials have to be deposited during the semiconductor fabrication process. The two most important deposition methods are the physical vapor deposition and the chemical vapor deposition. During the physical vapor deposition process, accelerated gas ions sputter particles from a sputter target in a low-pressure plasma chamber. Chemical vapor deposition is a chemical reaction of a gas mixture on the substrate surface at high temperatures. Get Your Silicon Wafers Today Now that we have gone through the semiconductor fabrication process, it’s time to get some for your next project. Visit our fully equipped online store today to view our silicon wafers and other products.  
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