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靜電是一種客觀的自然現(xiàn)象，產(chǎn)生的方式很多，如接觸、磨擦、沖流等等。其產(chǎn)生的基本過程可歸納為：接觸 → 電荷 → 轉(zhuǎn)移 → 偶電層形成 → 電荷分離。設(shè)備或上的靜電高可達數(shù)萬伏以至數(shù)十萬伏，在正常操作條件下也常達數(shù)百至數(shù)千伏。由于自身的動作及與其它物體的接觸-分離、磨擦或感應(yīng)等因素，可以帶上幾千伏甚萬伏的靜電。靜電是正、負電荷在部范圍內(nèi)失去平衡的結(jié)果。它是一種電能，留存在物體表現(xiàn)，具有高電位、低電量、小電流和作用時間短的特點。

靜電控制的主要措施有：靜電的泄漏和耗散、靜電中和、靜電屏蔽與接地、增濕等。

靜電放電引起的元器件擊穿損害是電子工業(yè)普遍、嚴重的靜電危害，它分硬擊穿和軟擊穿。硬擊穿是一次性造成元器件介質(zhì)擊穿、燒毀或性失效;軟擊穿則是造成器件的性能劣化或參數(shù)下降。

靜電敏感元器件和印制電路板在生產(chǎn)過程中工序之間的傳遞和儲放，必須使用防靜電上料箱、元件盒、周轉(zhuǎn)箱、周轉(zhuǎn)托盤等。以防止靜電積累造成危害。靜電敏感元器件和印制電路板，作為成品進行包裝時必須采用防靜電屏蔽袋、包裝袋、包裝盒、條、筐等，避免運輸過程中的靜電損害。

電子產(chǎn)品在生產(chǎn)過程中，其元器件、組件成品經(jīng)常與設(shè)備工具等發(fā)生接觸、分離，磨擦而產(chǎn)生靜電，必須使用防靜電坐墊、周轉(zhuǎn)小車、維修包、工具、工作椅(凳)等，并通過適當(dāng)?shù)慕拥?，使靜電迅速泄放。

磨擦起電和靜電是電子、微電子工業(yè)中的兩大危害源，但產(chǎn)生靜電并非危害所在，危害在于靜電積累及由此產(chǎn)生的靜電電荷放電，因此必須予以控制。帶靜電的物體，在其周圍形成靜電場，會產(chǎn)生力學(xué)效應(yīng)，放電效應(yīng)和靜電感應(yīng)效應(yīng)。

由于靜電的力學(xué)效應(yīng)，空氣中的浮游的塵粒會吸附到硅片等電子元器件上，嚴重影響電子產(chǎn)品的質(zhì)量，因此，對凈化工作空間必須采取防靜電措施。

凈化室的墻壁、天花板和地板等都應(yīng)采用防靜電的不發(fā)塵材料，對操作人員及工件、器具也應(yīng)采取一系列的靜電防護措施。

為了解生產(chǎn)過程靜電起電情況，判別生產(chǎn)過程中靜電的影響程度以及檢驗靜電防護用品、裝備質(zhì)量都需要測量靜電及有關(guān)參數(shù)。靜電的測量，主要是對靜電電壓、材料電阻、接地電阻、靜電關(guān)衰期、靜電電量、靜電消除器消電性能、布料電荷面密度等的測量。

靜電防護工作是一項系統(tǒng)工程，任何環(huán)節(jié)的疏漏或失誤，都將導(dǎo)致靜電防護工作的失敗，必須時時防范，人人防范。

How is the anti-static aluminum foil bag anti-static

Static electricity is an objective natural phenomenon, which can be produced in many ways, such as contact, friction, rushing and so on. The basic process of its production can be summarized as: contact → charge → transfer → formation of an even layer → charge separation. The static electricity on the equipment or on the device can reach tens of thousands to hundreds of thousands of volts, and it often reaches hundreds to thousands of volts under normal operating conditions. Due to its own actions and contact-separation, friction or induction with other objects, it can carry thousands or even tens of thousands of volts of static electricity. Static electricity is the result of the loss of balance between positive and negative charges within a certain range. It is a kind of electric energy, which has the characteristics of high potential, low power, small current and short action time.

The main measures of static electricity control include: static electricity leakage and dissipation, static electricity neutralization, static electricity shielding and grounding, and humidification.

The breakdown of components caused by electrostatic discharge is a common and serious electrostatic hazard in the electronics industry. It is divided into hard breakdown and soft breakdown. Hard breakdown is a one-time cause of dielectric breakdown, burnout or failure of components; soft breakdown is caused by deterioration of device performance or reduced parameters.

The transfer and storage of electrostatic sensitive components and printed circuit boards between processes in the production process must use anti-static loading boxes, component boxes, turnover boxes, turnover trays, etc. To prevent the accumulation of static electricity from causing harm. Electrostatic sensitive components and printed circuit boards must be packaged as finished products with anti-static shielding bags, packaging bags, packaging boxes, strips, baskets, etc., to avoid electrostatic damage during transportation.

In the production process of electronic products, the components and components of finished products often come into contact with, separate from equipment and tools, and generate static electricity due to friction. Anti-static cushions, turnover carts, maintenance kits, tools, work chairs (stools), etc. must be used, and Through proper grounding, static electricity can be discharged quickly.

Friction electrification and static electricity are the two major sources of hazards in the electronics and microelectronics industries, but the generation of static electricity is not the hazard. The hazard lies in the accumulation of static electricity and the resulting electrostatic charge discharge, so it must be controlled. An object with static electricity will form an electrostatic field around it, which will produce mechanical effects, discharge effects and electrostatic induction effects.

Due to the mechanical effect of static electricity, floating dust particles in the air will be adsorbed on silicon chips and other electronic components, which will seriously affect the quality of electronic products. Therefore, anti-static measures must be taken to purify the working space.

The walls, ceilings and floors of the clean room should be made of anti-static and non-dust materials, and a series of electrostatic protection measures should be taken for operators, workpieces and appliances.

In order to understａnd the static electricity in the production process, to determine the degree of static electricity in the production process, and to inspect the quality of electrostatic protection products and equipment, it is necessary to measure static electricity and related parameters. The measurement of static electricity mainly refers to the measurement of static voltage, material resistance, ground resistance, static turn-off period, static electricity quantity, static elimination performance, and surface density of cloth charge.

Electrostatic protection is a systematic project. Omissions or errors in any link will lead to the failure of electrostatic protection. It must be guarded from time to time and everyone should guard against it.