新聞資訊

淺析靜電的產生和造成的危害

發布日期：2017-12-12  閱讀次數：372

物(wu)質都是由分(fen)(fen)(fen)子(zi)組成(cheng)，分(fen)(fen)(fen)子(zi)是由原(yuan)子(zi)組成(cheng)，原(yuan)子(zi)中(zhong)有(you)帶(dai)(dai)負電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)和(he)(he)帶(dai)(dai)正電(dian)(dian)(dian)(dian)(dian)荷的(de)(de)(de)質子(zi)組成(cheng)。當兩個不(bu)同的(de)(de)(de)物(wu)體(ti)相互接觸時就會(hui)使得一(yi)個物(wu)體(ti)失去一(yi)些電(dian)(dian)(dian)(dian)(dian)荷如電(dian)(dian)(dian)(dian)(dian)子(zi)轉移到另一(yi)個物(wu)體(ti)使其(qi)帶(dai)(dai)正電(dian)(dian)(dian)(dian)(dian)，而另一(yi)個物(wu)體(ti)得到一(yi)些剩余電(dian)(dian)(dian)(dian)(dian)子(zi)而帶(dai)(dai)負電(dian)(dian)(dian)(dian)(dian)。若在分(fen)(fen)(fen)離(li)的(de)(de)(de)過程中(zhong)電(dian)(dian)(dian)(dian)(dian)荷難以(yi)中(zhong)和(he)(he)，電(dian)(dian)(dian)(dian)(dian)荷就會(hui)積累使物(wu)體(ti)帶(dai)(dai)上(shang)靜電(dian)(dian)(dian)(dian)(dian)。所以(yi)很多運動的(de)(de)(de)物(wu)體(ti)在與其(qi)它物(wu)體(ti)接觸與分(fen)(fen)(fen)離(li)的(de)(de)(de)過程（摩(mo)擦）就會(hui)帶(dai)(dai)上(shang)靜電(dian)(dian)(dian)(dian)(dian)。固體(ti)、液體(ti)和(he)(he)氣體(ti)多會(hui)帶(dai)(dai)上(shang)靜電(dian)(dian)(dian)(dian)(dian)。  

靜電(dian)(dian)放電(dian)(dian)引起的元件(jian)擊(ji)(ji)穿(chuan)(chuan)損(sun)害是(shi)電(dian)(dian)子(zi)工業最(zui)普(pu)遍、最(zui)嚴(yan)重的靜電(dian)(dian)危害，它分為硬擊(ji)(ji)穿(chuan)(chuan)和軟擊(ji)(ji)穿(chuan)(chuan)。硬擊(ji)(ji)穿(chuan)(chuan)是(shi)一次性造(zao)成元器件(jian)介質擊(ji)(ji)穿(chuan)(chuan)、燒毀或(huo)永久性失效(xiao)。軟擊(ji)(ji)穿(chuan)(chuan)造(zao)成元器件(jian)性能劣(lie)化或(huo)參數指標下(xia)降，在產(chan)品出廠以前難以發現而(er)造(zao)成隱患(huan)。