Now society, AC/DC changeover, DC/DC changeover already was become gradually modular industry, also make the main component of all sorts of electron equipment, automation equipment stage by stage, the reliability that the quality of module of AC/DC power source and module of DC/DC power source and dependability also are affecting whole facility greatly, failure rate and maintenance are led.

Affect reliability of power source product have the factor such as design, craft, management, test and method, supplied materials, these respects are production of module of each power source and the respect that use manufacturer pays close attention to. In fact, the dependability of power source module besides should ensure of each function index optimize, ensure the manufacturing environment of power source module is clean and orderly even, have good electrostatic preventive measure, have proper temperature and humidity, the power source module that produces below such condition only just says to go up truly is the power source product with high reliability.

As ceaseless progress of the society, electronic equipment is carried in industrialized production, traffic, each domain such as communication is producing bigger and bigger effect, what the dependability of electronic equipment also decided each economy activity on certain level is effective move, and although power source module is in in electronic equipment the cost that holds is very low, but can call electronic device " heart " , invalidation of power source module brings about electronic equipment possibly directly break down, cause beyond recall loss.

One, electrostatic defend:

Yuan parts of an apparatus is being made, memory, carry reach in rigging a process, because instrument equipment, material reachs the opposite motion of handlers, all produce electrostatic tension because of attrition likely, when parts of an apparatus is contacted with these electrical body, electrical body can pass discharge of parts of an apparatus, cause invalidation of parts of an apparatus.

Contemporary integrated circuit great majority uses MOS circuit, and MOS canal and integrated circuit chip also were used mostly in power source module. Be like in the production of power source module carelessly electrostatic defend, often can cause taller cell bad article rate. Although pass the product that tests qualification, in producing production course possibly also, because of electrostatic and to MOS canal and integrated circuit chip cause slight loss, affect the life of power source module and reliability thereby. Introduce in producing an environment electrostatic defend system (use human body antistatic level ground of ground connection, ground is antistatic of ground connection and operation unit, instrument antistatic the means such as ground connection) hind, can avoid the loss that causes to MOS canal and integrated circuit chip effectively. Electron yuan parts of an apparatus is antistatic injury is a complex systematic project, it is perforative the whole process at system or equipment development and production. From yuan parts of an apparatus is purchased, pack, carry, inventory, installation, debug, till the user is used,experiment, whole process, all-around, complete member should abide by antistatic losing a series of relevant measure. Defending is project of a system, the investment that wants the investment that has facility, staff and active management and system. This shows, electrostatic defend systematic stand or fall, direct report gives the quality level of management of an enterprise, be actual strength of a company show.
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