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Technical Process

Ultra-pure Water

Ultra pure water refers to water with a theoretical purity close to 100% obtained by removing impurities from natural water through some water treatment processes.
In the production of semiconductor raw materials and the manufacturing process of semiconductor products, the presence of impurities can affect product performance; Therefore, after certain processes in semiconductor manufacturing, ultrapure water rinsing is required to remove residual chemicals and impurities such as particles. Therefore, ultrapure water is indispensable in the manufacturing of semiconductor components such as logic chips, memory chips, image control chips, and power control chips.

With the increasing demand for artificial intelligence devices year by year, the demand for ultrapure water will continue to grow in the future.
Shanghai Nomura Water Treatment Engineering Co., Ltd. is a professional system contractor committed to working with end customers to achieve efficient and stable production of ultrapure water in the context of increasing demand for ultrapure water.

 

 

The commonly used equipment in ultrapure water systems includes: multimedia filters (MMF), activated carbon filters (ACF), ion exchange resin devices (IER), reverse osmosis (RO), electrodialysis (EDI), ultraviolet sterilization/oxidation devices (UV/TOC UV), membrane degassing (MDG), ultrafiltration membranes (UF), etc; By combining these processing unit devices through design, an ultra pure water production system capable of producing qualified water quality can be constructed.

In recent years, due to the upgrading of semiconductor product manufacturing processes, the requirements for ultrapure water quality have become increasingly stringent. And Shanghai Nomura's headquarters in Japan, Nomura Microelectronics Co., Ltd., has a professional analytical laboratory that has obtained international ISO/ICE 17025 certification and can perform high-precision trace analysis, which can meet the water quality analysis needs of the most advanced ultrapure water in the world.