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Why Is Boron Nitride Ceramic Used as a Preferred Sintering Fixture Material for Aluminum Nitride and Silicon Nitride Substrates?

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  Against the backdrop of the rapid development of new energy vehicles, 5G communication, power semiconductors and the third-generation semiconductor industry, the market demand for high-performance electronic packaging ceramic materials continues to rise. Aluminum nitride (AlN) and silicon nitride (Si₃N₄) ceramic substrates , with their comprehensive advantages of high thermal conductivity, high insulation, and strong structural reliability, have become the core basic carriers for IGBT modules, SiC power devices, vehicle electronic control systems, and high-end precision electronic equipment.   The quality of the finished products of high-performance nitride substrates not only depends on the powder formula, molding process and sintering curve, but also the supporting fixtures during the sintering process are a key link determining the flatness, surface quality and batch yield of the substrates. During the high-temperature sintering process, thin substrate bodies are prone t...
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How High Voltage Feedthroughs Enable Reliable Power Transmission in Excimer Laser Systems

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In high-precision manufacturing fields such as semiconductor lithography, laser processing of display panels, and fiber Bragg grating writing, excimer lasers have become key equipment in numerous advanced manufacturing processes due to their deep ultraviolet wavelengths, high energy density, and precise processing capabilities.   Excimer laser systems typically employ sealed discharge chambers, where laser output is generated by high-voltage pulse excitation of the working gas. During this process, external power must be reliably transmitted to internal electrodes within the chamber without compromising the chamber’s original vacuum-sealed environment.   However, maintaining long-term reliable vacuum performance while achieving high-voltage electrical connections has always been a significant challenge in laser system design. High-voltage feedthroughs are critical components that address this issue, combining ceramic insulation structures with metal-to-gas-seal technology to s...
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High-Temperature Advanced Ceramics: A Key Support for the Preparation of High-End Precious Metals

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High-end manufacturing industries such as semiconductors, new energy, and precision electronics have a huge demand for precious metals. Precious metals possess excellent electrical conductivity, corrosion resistance, high-temperature stability, and catalytic properties, leading to a surge in market demand.   The preparation of precious metals involves complex processes, including purification, high-temperature smelting, vacuum treatment, atmosphere sintering, powder metallurgy, crystal growth, and precision machining.   Because precious metals have extremely high melting points and strict low-impurity requirements, the internal components of production equipment must offer excellent thermal stability, high purity, thermal shock resistance, and corrosion resistance.   Traditional metal materials are prone to oxidation, deformation, or contamination in extreme high-temperature environments. Advanced ceramics overcome these limitations and have become core materials in preci...
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Looking for High-Temperature Furnace Tooling? The Strategic Role of BN Ceramics in Cell Lines

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Battery manufacturers scaling solid-state and lithium-metal cell lines face a shared materials problem: the process environments are chemically aggressive, thermally extreme, and contamination-intolerant. A single wrong choice of structural or tooling material can introduce impurities, cause adhesion failures, or compromise electrical isolation at exactly the point where precision matters most. Boron nitride ceramics addresses several of these challenges in one material platform.   Five Process Roles BN Plays on a Battery Line   1. Sintering Fixtures for Solid-State Electrolytes   Oxide electrolytes such as LLZO, LATP, and LAGP require high-temperature sintering—conditions that eliminate most metal and polymer tooling options. BN setter plates and crucibles provide a chemically inert, non-reactive surface that does not bond to or contaminate the electrolyte powder during firing. The low thermal expansion coefficient of BN also reduces the risk of cracking or warping tha...
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