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Large market of new materials for military industry (一)

Large market of new materials for military industry (一) New materials, also known as advanced materials, refer to new materials that have been successfully researched and are being developed and have excellent characteristics and functions and can meet the needs of high technology. The development of human history shows that materials are the material basis and guide of social development, while new materials are the milestone of social progress. Materials technology has always been a very important field in the scientific and [...]

What is fused quartz?

What is fused quartz? Fused quartz is the processing form of silicon dioxide, with an amorphous structure. Also known as synthetic fused silica, this material can be made in the following ways: The use of gas or electric heat to melt silica particles into a single form, or the use of chemicals to synthesize glass, both of these processes can create a viscous cross-linked 3D structure, which has excellent optical properties, thermal shock resistance and low thermal expansion coefficient, which means [...]

Introduction to each link of SiC industry chain and its competition pattern(2)

Introduction to each link of SiC industry chain and its competition pattern(2) Introduction to SiC industry chain: upstream substrate, midstream epitaxial wafer, downstream devices and applications. The industry chain based on SiC materials mainly includes the preparation of SiC substrate materials, growth of epitaxial layers, device manufacturing and downstream application markets. The upstream of SiC industry makes substrate materials from raw materials and then epitaxial materials; The midstream includes SiC devices, SiC power semiconductors, and SiC power modules; Downstream applications include [...]

Special research report on silicon carbide industry: growth of new energy vehicles and photovoltaic drive industry(1)

Special research report on silicon carbide industry: growth of new energy vehicles and photovoltaic drive industry(1) 1. SiC has excellent electrical characteristics and is expected to become one of the most promising semiconductor materials The development of semiconductor materials has gone through three stages. Common semiconductor materials include silicon (Si), germanium (Ge) and other element semiconductors and compound semiconductor materials such as gallium arsenide (GaAs), silicon carbide (SiC), gallium nitride (GaN). From the time sequence of research and large-scale application, the [...]

The Secret to Silicon Carbide Wafer Success

The Secret to Silicon Carbide Wafer Success Almost all the devices we use today rely on semiconductors. New technological advancements require silicon carbide (SiC) to be used in many demanding semiconductor applications. Due to its physical and electronic properties, SiC-based devices are well suited for high-temperature and high-power/high-frequency electronics, enabling advancements in EV, 5G, and IoT technologies. While they offer many benefits to the end user, the production of high-quality SiC substrates presents a number of challenges for wafer manufacturers. Semiconductors [...]

3 minutes to understand lithium niobate crystal(2)

3 minutes to understand lithium niobate crystal(2) Main applications of lithium niobate crystals (1) Piezoelectric application Lithium niobate crystal has high Curie temperature, small temperature coefficient of piezoelectric effect, high electromechanical coupling coefficient, low dielectric loss, stable physical and chemical properties of crystal, good processing performance, and easy to prepare large-sized and high-quality crystals. It is an excellent piezoelectric crystal material. Compared with the commonly used piezoelectric crystal quartz, lithium niobate crystal has a high sound speed, which can prepare high-frequency devices. Therefore, lithium [...]

3 minutes to understand lithium niobate crystal(1)

3 minutes to understand lithium niobate crystal(1) With the introduction of “new infrastructure”, 5G has gradually entered our lives, and services such as cloud computing, virtual reality, data communication, and high-definition video have also continued to develop, driving the upgrade of core optical networks to ultra-high-speed and ultra-long-distance transmission. In this process, there is a core device that is essential – that is the lithium niobate modulator (LiNbO3). Lithium Niobate Modulator It is reported that the lithium niobate modulator is made by [...]

Application of Quartz Glass in High-tech Field

Application of Quartz Glass in High-tech Field Quartz glass has excellent mechanical, thermal, optical and chemical properties, and is widely used in semiconductors, optics, optical fibers, photovoltaics, electric light sources, aerospace and other fields. Quartz glass is an industrial technical glass composed of a single component of silicon dioxide. Since silicon dioxide is an atomic crystal and there is a covalent bond between Si-O, quartz glass has strong temperature resistance and stable chemical properties; The chemical bond energy between Si-O is [...]

Magnetic Ceramics – Ferrite

Magnetic Ceramics – Ferrite Ferrite is a composite oxide mainly composed of iron oxide and other iron or rare earth oxides. It are mostly semiconductors, and their resistivity is much higher than that of general metal magnetic materials, and they have the advantage of small eddy current loss. In the field of high frequency and microwave technology, such as radar technology, communication technology, space technology, electronic computer and so on, it has been widely used. Classification of ferrites Cutting of Ferrite At present, [...]

Quartz crucible: an indispensable container for photovoltaic, semiconductor and other industries

Quartz crucible: an indispensable container for photovoltaic, semiconductor and other industries 1. Understanding the Quartz Crucible Quartz crucibles have the advantages of high purity, strong temperature resistance, large size, high precision, and good heat preservation. Especially in the process of silicon crystal growth, the quartz crucible has become an irreplaceable key component! Quartz crucibles can be used below 1450°C and are divided into two types: transparent and opaque. The earliest quartz crucibles were all transparent. This transparent structure easily led to uneven [...]