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Position:Anti-static

Industry of domestic and international electron is antistatic standard

From;    Author:Stand originally

2. To electrostatic and sensitive product, if semiconductor is schism parts of an apparatus, integrated circuit, thick filmy circuit and resistor, capacitor, piezocrystal, especially before 3 kinds of electrons are sensitive parts of an apparatus, their it may be said is the “ heart ” of electronic equipment. Because of this, to electrostatic harm defend problem, involve each technical fields of electronic product almost, especially those requirement bulk frequency of small, job the electronic facility with large density of tall, installation is more such.
3. Electrostatic defend the job is project of a system, it involves sensitive electron product make, assemble, processing, examination, experiment, maintenance, pack, carry, keep in storage, use wait for each link, and it is mode of a kind of series connection, the error on either link, will bring about whole defend working failure; In the meantime, it as located as sensitive product environment (facilities of atmosphere of osculatory article, air, humidity, ground, workbench, chair, treatment, tool) with the operation personnel is worn outfit (the dress that includes to apparel, cap, shoe is wiped, belt of glove, wrist) have, the careless omission of either respect or error, will bring about electrostatic defend working failure.
In the light of afore-mentioned electronic products electrostatic defend working characteristic, best can establish an a series of standards that suit to it. Better choice is to use Miscellaneous Leaflet to change a method, the systematic requirement have sth in mind that Cong Jing report defends, comprehensive ground considers the formulate of relative standard and harmonious work, only such, ability of the square field surface each link antistatic the job, a kind of orderly state is become under the standard that overall brings into a standard.
The American production to product of electron of for military use, begin to carry out since seventies electrostatic defend control, after passing 10 years roughly, just issue corresponding standard formally. International Electrotechnical Committee (IEC) from 80 time first since, issue in succession antistatic standard. Under photograph comparing, home is antistatic standard formulate and releasing still is to begin merely, although had certain working base and requirement, but with relative standard be covered together and carry out in the round still have not little difference.
2, IEC about antistatic standard formulate overview
In IEC organization, have 5 technologies committee at least (or cent technology committee) be with antistatic technical work concerns and formulate the part is antistatic standard or draft standard. Revise metric system of committee of these 5 technologies overview introduction to be as follows now:
1. Procedure of industry of IEC / TC65 is measured and control technical committee.
This technology committee (TC) 1984 first formulate released IEC801—2 " industrial procedure measures the electromagnetism compatibility with control equipment the 2nd part: Electrostatic discharge asks " (T13926.2—92 of / of GB of standard of our country of homonymic already and equivalent translate into) , this standard undertook editing in the round in April 1991, active and effective version is the 2nd edition. This standard stipulated industrial procedure is measured and control equipment is opposite the astringent grade that feel this kind of device because of handlers and produce electrostatic discharge or experiments with the sensitivity of the electrostatic discharge of the generation between the object near device and experiment method, with this evaluation industrial procedure and measurement unit are opposite the sensitivity of electrostatic discharge. This standard experiment of lieutenant general of L edition is astringent grade differentiates for 1, 2, 3, 4 in all 4 grade, corresponding experiment voltage is respectively 2, 4, 8, 15kV; And the 2nd edition repairs instead 5 astringent spend grade, give out respectively by discharge means value of voltage of 2 series experiment, the voltage that contacts discharge among them is accordingly 2, 4, 6, 8, XkV. The voltage series that the space discharges is 2, 4, 8, 15 with XkV. The X here is one open grade, talk things over by both sides of supply and demand product standard is written after deciding. The electrostatic discharge generator that IEC801—2 standard still uses to experiment place (include to form reach character) , program of test facilities configuration, test and criterion made a provision (the second edition relatively the first edition had a certain number of parts to make revise) . This standard has stronger can carry out a gender. Electric head office released SJ—20154—92 of industry army mark in November 1992 in " IT equipment is electrostatic discharge susceptibility experiments " , the department consults IEC801—2 (1991 the draft of revised edition) with ECMA TR—40 of standard of European computer Manufacturers Association " IT equipment is electrostatic susceptibility experiments " of formulate, divide in the standard astringent outside spending grade and frequency of indirect to bedplate of horizontal beat a drum discharge to differ, other technology content and IEC801—2 (the 2nd edition) agree roughly, but not equivalent.
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