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esd靜電防護(hù)基礎(chǔ)知識(shí)-文庫(kù)吧資料

2025-01-02 03:09本頁(yè)面
  

【正文】 靜電防護(hù)的”警式看板” ? 10 _____ Are the daily wrist strap checks being performed and recorded the results ? 靜電手環(huán)是否每班做檢查及記錄檢查結(jié)果呢 ? 11 _____ Does the wrist strap resistance measurement path go from the wearer39。 Conductive Bag Antistatic Magazine 導(dǎo)電袋及抗靜電管 (2) 26 Caution Label 提醒標(biāo)籤 1. A yellow ESD caution label shall be attached no conductive bag and one side of packing box. 黃色的 ESD 警告標(biāo)誌必須貼在導(dǎo)電袋及包裝箱上 . 2. Each ESD protective package shall have a contrasting ESD caution label. The caution label shall be legible to normal vision at a distance of three feet. 每件靜電防護(hù)包裝物必須有明顯的靜電警告標(biāo)籤 .這靜電警告標(biāo)籤必須能在三英尺外以正常目視可辨識(shí)出 . 27 AntiStatic Void Filler 抗靜電泡墊 Packing and filler materials for ESDs devices shall not turboelectric charge to greater than +/200(TCP100V) volts under normal/intended use. 靜電敏感材料的包裝及填充物當(dāng)使用時(shí)不得因摩擦而產(chǎn)生大於 +/ 200(TCP100V) 伏特之靜電壓 . 28 Dissipative Table/Floor MAT (Optional) 靜電地氈或桌墊 (1) 1. ESD protective static /=10E5 to 10E9 ohm dissipative work surface to ESD ground resistance. 靜電防護(hù)傳導(dǎo)物表面至靜電接地之電阻等於或大於 10E5 歐姆 到 10E9 歐姆 2. The remended lower limit is 10E5 ohm. However a lower value may be used if local safety requirements can still be met. 建議最低的阻抗值是 10E5 歐姆 . 但是如果能夠符合當(dāng) 地安全要求則低於此建議值的阻抗可以採(cǎi)用 . 29 3. ElectrodesTwo cylindrical kg(5 pound)electrodes with a diameter of mm ( inches) each having contacts of electrically conductive material with a ShoreA (IRHD) udometer hardness of 5070. The resistance between the two electrodes should be less than 1 kilohm when measured at 10 V or less on a metallic surface. 電極 兩個(gè)重約 公斤 (5 磅 ),直徑 公分 ( 英吋 ) 的圓柱型電極 , 每個(gè)都要有硬度在 (IRHD) 5070 間的導(dǎo)電物相接觸 . 兩個(gè)電極間的電阻在金屬表面及 10 伏特或更低的量測(cè)電壓下時(shí)不得大於 1 k 歐姆 . Dissipative Table/Floor MAT (Optional) 靜電地氈或桌墊 (2) 30 4. Clean electrode with a clean,lowlining cloth. or using a minimum of 70% isopodanwater to clean it. Allow electrode to air dry. 使用清潔且不會(huì)脫纖維的布料來(lái)清潔電極 .或用至少含有 70% 的異丙 醇水溶液來(lái)清潔電極 ,並讓電極在空氣中乾燥 . 5. Connect one lead of the meter to ESD ground, and the other lead to the electrode. Place electrode on the surface of the material being tested. Apply test voltage and record the resistance after the measurement has stabilized or after 15 seconds has elapsed. Remove test voltage and remove electrode from surface. 連結(jié)儀表的一端到接地點(diǎn) ,另一端到電極 . 將電極置於待量測(cè)物體表面 相距至少 3 英尺 . 輸入測(cè)試電壓並在量度穩(wěn)定或 15秒後記錄阻抗值 . 停止測(cè)試電壓且將電極也移開(kāi) . Dissipative Table/Floor MAT (Optional) 靜電地氈或桌墊 (3) 31 6. Perform a minimum of five tests per contiguous Floor surface material or a minimum of five tests per 5,000 Square feet of floor material, whichever is greater. A Minimum of three of the five tests should be conducted in Those areas that are subject to wear or that have chemical or Water spillage or that are visibly dirty. 在連續(xù)的地板面至少要做 5 次測(cè)試或每 5000平方英尺要做 5 次測(cè)試 ,那 種次數(shù)多就採(cǎi)用那種 . 5次中至少有 3次要在有受磨損 ,或受化學(xué)物 ,水污 染或看起有些髒的地方 Dissipative Table/Floor MAT (Optional) 靜電地氈或桌墊 (4) 32 ESD Protected Work Station 無(wú)靜電工作桌 (1) 1. Static dissipative ESD protective work surfaces are preferred. A direct connection to ground is remended. A resistor of 1M ohm +/ 10 % in the grounding wire is optional. 建議最好使用靜電傳導(dǎo)防護(hù)工作面 ,且直接連結(jié)到接地 . 接地線可加或 不加 1M +/ 10 % 電阻 . 2. When highly conductive ESD protective work surfaces are required due to the manufacturing process needs (., stainless steel), they shall be connected directly to ESD ground without a series resistor to ensure they are continuously at ground this case Ground fault circuit interrupters (GFCI) is a remendation. 當(dāng)高導(dǎo)電性靜電防護(hù)工作面 (如 :不銹鋼工作面 )因製造部需要而設(shè)置時(shí) , 它們需直接連結(jié)到靜電接地而不須外加一串連電阻以確定它們持續(xù)的 維持接地電位 。s hand, through the user39。ESD Best Practical Sharing TITL QRA 1 2 Index ? ESD History ? Definition of ESD Material ? Reduce ESD Damaged Methodology ? ESD Check list 3~13 14~17 18~46 47~52 Page 2 Reminder that ESD is a serious problem in the entire electronics industry. 提醒所有員工“靜電”對(duì) IC材料的破壞是一個(gè)非常嚴(yán)重的問(wèn)題 , 它是整個(gè)半導(dǎo)體所面臨的一項(xiàng)挑戰(zhàn) . Why Do We Need ESD Training? 為何需要此 ESD訓(xùn)練課程 ? ? It is believed that 25% of all ponent failures are a result of ESD. 相信有大約 25%的 IC材料是因靜電 (ESD)的影響而遭破壞 3 3 ? Electrical Over Stress(EOS)The exposure of an item to a current or voltage beyond its maximum ratings. EOS 指一個(gè) IC材料受到超過(guò)其所能負(fù)荷的電壓 ,電流而遭受到破壞 的狀態(tài) Definitions 定義 ? Electrostatic Discharge (ESD)The transfer of electrostatic charge between bodies or surfaces at different electrostatic is a subset of EOS. ESD 即靜電放電之意 .指不同電位的二個(gè)物體之間產(chǎn)生的電荷急驟流 動(dòng)的現(xiàn)象 . 4 4 Conductors vs Insulators 帶靜電的絶緣體 Charged Insulator 帶靜電的導(dǎo)體 Charged Conductor Conductor evenly distributes charge over entire surface 平均分佈於整個(gè)表面 Opposite polarity charges can exist on the same insulator. 不同極性的電荷會(huì)同時(shí)存在絶緣體上 Conductor pletely discharges when grounded
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