Ideal for semiconductor manufacturing equipment! Introducing high insulation resistance alumina.

Introducing our dense alumina, which has overwhelmingly increased the insulation breakdown voltage at high temperatures, essential for insulator parts, ahead of other companies.

Alumina ceramics, even as insulators, have inherent limits to their voltage endurance. However, the alumina ceramics N-9H and N-999S, proudly produced by Nishimura Ceramics, boast a high insulation resistance that prevents insulation breakdown even at over 6000V with a thickness of just 0.3mm. Additionally, their volume resistivity maintains high efficiency not only at room temperature but also at elevated temperatures exceeding 100°C. In high-temperature processes, the resistance of the base material has its limits, making these ceramics suitable for environments where insulation breakdown must be withstood at high temperatures, and where a higher voltage, safer, and higher purity insulator is required. Unlike regular alumina ceramics, which may have particle structures influenced by sintering aids or voids, resulting in a less dense particle arrangement, this high insulation resistance alumina ceramic features an ultra-dense particle structure that maximizes the inherent properties of alumina ceramics. Please feel free to contact us for more information.

basic information

Like conventional alumina ceramics, it is possible to manufacture complex shapes and mass-produced parts due to green processing. Full machining from the block after firing allows for short delivery times as well.