Position:home>Technical information>ESD and contaminative control supplement each other
ESD and contaminative control supplement each other
From;  Author:Stand originally
ESD and contaminative control problem are considered as to affect the main factor of accrual and dependability. Although pollution is long-term since be considered as to affect industry of drive of semiconductor, disk, spaceflight, drug and trade of medical apparatus and instruments, now another a few industries, for example automation, food, also begin to use contaminative control. ESD control also arrives to grow accordingly midday in application. In fact, today, ESD (electrostatic discharge) the method of a well known that control is considered as to reduce pollution, produced enormous beneficial result. Although ESD has a lot of senior experts with what pollute control industry, this domain still has a lot of sealed fields. Because the difference between these two course is met,produce a lot of misunderstanding. Because every course has different regulation, a lot of problems look to be able to become very complex. In fact, ESD or the very much question that pollute control to go up can have simple way solve. Summarize below: 1, the n that controls appearance of clean and indoor object has very great help to polluting control. Accordingly, the material that can choose low attrition voltage or can the material of ground connection. But, be restricted only these two kinds of methods are insufficient. The use of ionic fan gave more way. Ionic fan can be used to reduce pollution in sensitive to ESD data and working procedure. 2, in the electrostatic and sensitive data in clean room and working procedure, the electrostatic discharge in controlling clean chamber can make ESD falls the smallest. 3, if was not deployed,in mixing confluent clean room fan is mixed reduce air source, its air current goes against the use of ionic fan. Accordingly, fan of best in mixing confluent clean room installation and compress air ion generator. But, fan and compress air ion generator to be able to let pollute reapportion to produce ill effect, need will electrostatic control and contaminative control to consider integratedly. 4, be in one-way those who flow is clean in, ionic generator installation is standing by smallpox or the place of HEPA can produce effect well, can control the surface to pollute especially. Opposite, one-way the air current that sheds clean room and clean Taichun can cause segregation effect or air current layer, segregation effect and air current layer can affect the discharge time performance of ionic generator. The installation in ionic generator must consider clean air current impact in the process. 5, the ionic fan of smallpox, horizontal cannot provide fast discharge time possibly. When electrostatic and sensitive equipment stands by low voltage, only a few ionic generator can have good ESD performance. Below this kind of circumstance, balance ESD invalidation and the requirement that pollute invalidation become not stable. 6, when should be being used at needing to pollute pilot area, all antistatic material and equipment need to pass those who contaminate property to detect. Manage together, use at antistatic all pollutes control need material of area and equipment also need those who pass ESD property to detect. 7, control area to polluting control and ESD, best can use successive supervisory system. In workbench, these use can undertake controlling better with the smallest chemical industry art medium accident. Want to become improvement word in these two respects, want to understand the requirement that basic principle has decided pollution and ESE pilot to must be achieved above all. The 2nd effective analysis method that should choose to solve pollution and ESD problem, special going up to the choice of material. The method that there is what one new-style compose establishs pollution and ESD pilot work area now, it is not traditional will consider through room architectural structure and good respect. The influence of the air current type that new method is in the focus the room centrally and tool, work station to air current. (if pursue 1 with the graph 2) graph 1: The design that this graph showed the clean and indoor product line in horizontal grade floor and corridor and the air current to park center are affected possibly. Graph 2: The effect with the potential to air current design that this graph showed the clean and indoor product line in horizontal grade floor and corridor. Clean craft and equipment must consider use honest opinion for just be being mixed. The assessment of the option that the design of the tool and test and verify include material, issue that affects to sufferring pollution and ESD. The successive supervisory system to pollution and ESD also should consider. Choose and supply what taste in easy bad news go up to also should consider pollution and ESD pilot requirement. In 1960 hind come to took the place of 1970, the ESD performance of a lot of good clean stuff is bad however. Now, this is not a problem any more. Of course, in formulate action of clean room staff is mixed when discipline, the pollution that also should consider personnel to arise and clean take pair of personnel to produce pollution completely " accommodate " . Here the respect often neglected the job of this respect before. Finally, whole and clean room and the government that ESD protects area environment can produce effect.

Previous12 Next