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Vacuum Gauge Anode Assembly

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INNOVACERA provides precision anode assemblies designed for INFICON MPG400 / MPG401 cold cathode vacuum gauge repair and refurbishment applications.Manufactured with high purity alumina ceramic insulation, precision metallization and vacuum brazing technology,the assembly delivers reliable high voltage insulation, vacuum compatibility and stable electrical performance. Technical Features 1.Built for high voltage vacuum environments. 2.Precision electrode alignment for stable ionization. 3.High voltage insulation for 2-4 kV DC operation. 4.Vacuum compatible materials for low outgassing conditions. 5.Hermetic ceramic to metal sealing by metallization and vacuum brazing. 6.Excellent electrical stability and long service life. 7.Precision concentricity control for field symmetry. Why the Anode Assembly Is Critical The anode assembly is a key electrical discharge control component in cold cathode vacuum gauges. Operating under 2-4 kV DC high voltage, it creates the electric field required f...
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BN Setter Plates for AlN and Si3N4 Sintering: Process and Material Selection Guide

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What is a setter plate?   A setter plate is a high-temperature support Boron Nitride Square Crucibles used inside a sintering furnace to hold ceramic substrates during firing. It helps maintain dimensional stability, minimizes deformation, and prevents contamination throughout the sintering cycle.   In AlN Substrate and Si3N4 Substrate manufacturing, the setter plate is not only a “supporting tool” but also a critical process component that directly affects material purity, sintering uniformity, and yield.   Especially in the sintering process of aluminum nitride and silicon nitride substrates, extremely high requirements are placed on the setter plate material: it must not contaminate the material system and must withstand high temperatures, atmosphere changes, and long-term thermal cycling.     Why is the setter plate so critical in AlN/ Si3N4 sintering?   AlN and Si3N4 are typical “highly sensitive structural ceramics,” whose properties are extremely se...
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Ceramic-to-Metal Brazed Optical Fiber Feedthroughs for High-Vacuum Applications

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Against the backdrop of semiconductor manufacturing, vacuum optical experiments, and high-end industrial equipment continuously advancing toward higher precision and stability, internal system signal transmission methods are undergoing significant upgrades. Particularly in high-vacuum and ultra-high-vacuum (UHV) environments, achieving stable, leak-free, and low-loss optical signal introduction and transmission has become one of the key technical challenges.   Ceramic-to-metal brazing technology, as an advanced hermetic sealing solution, is becoming a key foundational process for high-reliability vacuum electronic and optical components. Among these applications, optical fiber vacuum feedthrough s represent a significant example of this technology in the field of precision optical transmission.   I. Technical Challenges in High-Vacuum Optical Signal Transmission   Traditional vacuum system designs face significant hurdles when routing fiber-optic signals from atmospheric ...
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