The requirements for water quality of electronic semi-conductor industry
Microelectronics industry, extensive, the very large scale integration needs to wash the semi-manufactured goods, finished product with a large amount of pure water and ultra pure water. The higher the integrated level of the integrated circuit is, the higher the requirements for water quality are. This has put forward stricter requirement to the technology, easy operation, automatic intensity, continuity and constantly of the ultra pure water equipment.

Application Occasion:
Semiconductor material and product, printed circuit board and integrated circuit;
Ultra pure material and ultra purification chemical reagent;
The laboratory;
Surface polishing treatment;
Photoelectric products;
Crystalloid silicon and quartzose goods
Precise and tiny products of other Hi-Tech;

General technology
Raw water tank---- Raw water pump----Multi-medium filter----Active carbon filter----Precise filter-----High pressure pump ----One stage reverse osmosis ----PH regulates device ----Middle water tank ----Two stage reverse osmosis ----Pure water tank ----Pure water pump ---- UV(254nm)----Precise membrane filter(0.1um)

Raw water tank---- Raw water pump----Multi-medium filter----Active carbon filter----Precise filter-----High pressure pump-----One stage RO system-----RO water tank-----RO water pump-----UV(254nm)------Mixed bed ion exchanger------Precise filter(0.1um)

Two stage RO+EDI
Raw water tank---- Raw water pump----Multi-medium filter----Active carbon filter----Precise filter-----High pressure pump-----One stage RO system----- Middle water tank-----Two stage high pressure pump-----Two stage RO system -----RO water pump-----UV(254nm)------EDI system------EDI water tank-----Pure water pump------One stage extract mixed bed-------TOC(185nm)------ Two stage extract mixed bed------ Precise membrane filter(0.1um)