Introduction to the characteristics and technological process and application fields of ultrapure water equipment in the electronics industry

Features of ultra-pure water equipment in the electronics industry

Ultrapure water equipment in the electronics industry usually consists of a multi-media filter, an activated carbon filter, a sodium ion softener, a precision filter, etc., which constitute the pretreatment system, the RO reverse osmosis host system, and the ion exchange mixed bed (EDI electric desalination system) system And so on constitute the main equipment system. The raw water tank, the intermediate water tank, the RO pure water tank, and the ultrapure water tank are all equipped with a liquid level control system. The high and low pressure water pumps are equipped with high and low pressure protection devices, online water quality detection and control instruments, and the electrical uses PLC programmable controllers. It is unattended, and at the same time, the method of recommending and unifying customer requirements is adopted in the process of material selection, so that the equipment has a higher cost performance and equipment reliability compared with other similar products

Process flow for preparing ultrapure water for electronics industry

The process of preparing ultrapure water in the electronics industry can be roughly divided into the following three types:

  • The traditional water treatment method of using ion exchange resin to prepare ultrapure water in the electronics industry. The basic process is: raw water → multi-media filter → activated carbon filter → precision filter → intermediate water tank → anode bed → cathode bed → mixed bed (Multi-bed)→Ultra-pure water tank→Ultra-pure water pump→Post security filter→Water point
  • The method of using reverse osmosis water treatment equipment and ion exchange equipment to prepare ultrapure water in the electronics industry. The basic process flow is: raw water → multi-media filter → activated carbon filter → precision filter → intermediate water tank → reverse osmosis equipment →Mixed bed (multi-bed)→Ultra-pure water tank→Ultra-pure water pump→Post security filter→Water point
  • The method of using reverse osmosis equipment and electro-deionization (EDI) equipment to prepare ultra-pure water in the electronics industry. This is the latest process for preparing ultra-pure water, and it is also an environmentally friendly, economical, and has great potential for development. Ultra-pure water preparation process, the basic process flow is: raw water → multi-media filter → activated carbon filter → precision filter → intermediate water tank → reverse osmosis equipment → electro-deionization (EDI) → ultra-pure water tank → ultra-pure water pump → Rear-mounted security filter → water point

Application fields of ultrapure water in the electronics industry

  1. Ultra-pure water for semiconductor materials, devices, printed circuit boards and integrated circuit products and semi-finished products;
  2. Ultra-pure water for blending ultra-pure materials and ultra-pure chemical reagents;
  3. Ultrapure water used in laboratories and pilot plants;
  4. Surface polishing of automobiles and home appliances;
  5. Optoelectronic products;
  6. Other high-tech micro products;
EDI ultrapure water treatment

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