How to distinguish the grade of clean workshop and how to construct it

Clean workshop is mainly divided into the following levels:

(1) A level of dust-free workshop is mainly used in the microelectronics industry for the production of integrated circuits, and the requirements for integrated circuits are submicron.

(2) Grade 10: Grade 10 clean workshop is mainly used for semiconductor industry with bandwidth less than 2 microns.

(3) Level 10: Level 10 clean room is not aseptic room, level 10 clean room is strict for sterile or dust-free environment, level 10 clean room can be used for pharmaceutical professional aseptic production skills, etc., the clean room is widely used in the production of body items, surgery, including transplantation, synthesizing production, particularly sensitive to bacterial infection patient barrier treatment, Such as bone marrow transplant patients postoperative barrier treatment.

(4)1000 grade: 1000 grade clean workshop is mainly used for the production of high-quality optical products, but also for testing, assembling aircraft snake instrument, assembling high-quality miniature bearings, etc.

(5) Class 10,000: Class 10,000 clean workshops are used for the assembly of hydraulic equipment or pneumatic equipment, and in some cases are also used in food and beverage occupations. In addition, the 10,000 clean workshop is also widely used in the medical profession.

(6) Class 100,000: Class 100,000 clean workshop is used in many industrial sectors, such as optical product production, large electronic system small parts production, hydraulic or pneumatic system production, food and beverage production, medicine, pharmaceutical industry is also often used. (7), 300,000 level: 300,000 level dust-free workshop level is lower, used for ordinary clean areas, such as low-level walkways.

Construction criteria for clean workshop:

1. Site selection criteria: The selection of the address of the day dust workshop should be in line with the criteria of convenient production, convenient day and cost saving of investment and operation. The site should be located in the natural environment and good water quality, low atmospheric dust concentration, terrain, ground features, landform caused by the microclimate, conducive to production and energy saving. Keep away from areas that emit large amounts of dust, smoke dew, toxic gases and microorganisms, such as airports, railways, wharves and traffic arteries, and have certain maintenance intervals at the source of pollution and the upwind of the annual dominant wind direction. The distance between the clean workshop and the main road should be more than 50 meters.

2, the key to the planning of the moving front: check and analyze the diameter of the vehicle, the piping system, the exhaust pipe, the original data handling and the operation process, and shorten the moving line as much as possible, avoid the intersection and prevent the pollution. Operators, chemicals, data isostatic lines are not concentrated; A buffer zone should be set around the dust-free workshop; The entry and exit of the production equipment should not greatly affect the operation.

3, some air purification system air, such as after treatment can not avoid interspersed pollution, can not be recovered: solid data destruction, weighing, composition, mixing, composition, tablet, packaging, filling and other processes; Organic solvent refining material, dry process; Radiopharmaceutical production area; Pathogen operation area; A large number of harmful substances and volatile gases occur in the process; Solid oral preparation granules.

4, energy saving criteria: There are many places in the sky dust workshop to save energy, such as heating, ventilation, air conditioning (HVAC), process cooling, compressed air and other facilities. The HVAC system consumes more than half the power of the entire chipmaker. The reason for the large amount of power waste and excess HVAC capacity is largely due to cutting corners in the design and construction of the plant, cutting as much upfront capital as possible, regardless of the later operating costs.