???? 1)導電膠種類;
???? 導電膠種類很多，按導電方向分為各向同性導電膠（ICAs，Isotropic?Conductive?Adhesives）和各向異性導電膠（ACAs，Anisotropic?Conductive?Adhesives）。ICA是指各個方向均導電的膠黏劑，可廣泛用于多種電子領域；ACA則指在一個方向上如Z方向導電，而在X和Y方向不導電的膠黏劑。一般來說ACA的制備對設備和工藝要求較高，比較不容易實現，較多用于板的精細印刷等場合，如平板顯示器（FPDs）中的板的印刷。

按(an)照固(gu)(gu)(gu)化(hua)(hua)體(ti)(ti)系導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)又可(ke)分為室溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)、中溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)、高(gao)溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)、紫外(wai)光(guang)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)等。室溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)較不穩定(ding)，室溫(wen)(wen)(wen)儲存時(shi)體(ti)(ti)積電(dian)(dian)阻(zu)率容易(yi)(yi)發生(sheng)變化(hua)(hua)。高(gao)溫(wen)(wen)(wen)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)高(gao)溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)時(shi)金屬粒子(zi)易(yi)(yi)氧化(hua)(hua)，固(gu)(gu)(gu)化(hua)(hua)時(shi)間要(yao)求(qiu)必須較短才能(neng)滿足導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)的(de)要(yao)求(qiu)。目前國內外(wai)應(ying)用(yong)較多(duo)的(de)是中溫(wen)(wen)(wen)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)（低于150℃），其固(gu)(gu)(gu)化(hua)(hua)溫(wen)(wen)(wen)度(du)適中，與電(dian)(dian)子(zi)元器件(jian)的(de)耐(nai)溫(wen)(wen)(wen)能(neng)力和(he)使用(yong)溫(wen)(wen)(wen)度(du)相匹配，力學性能(neng)也較優異，所(suo)以應(ying)用(yong)較廣泛。紫外(wai)光(guang)固(gu)(gu)(gu)化(hua)(hua)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)將(jiang)紫外(wai)光(guang)固(gu)(gu)(gu)化(hua)(hua)技(ji)術(shu)和(he)導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)結合起來，賦(fu)予(yu)了導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)新的(de)性能(neng)并(bing)擴大了導(dao)(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)(jiao)的(de)應(ying)用(yong)范圍，可(ke)用(yong)于液晶顯示電(dian)(dian)致發光(guang)等電(dian)(dian)子(zi)顯示技(ji)術(shu)上。

2)導(dao)電膠的組成(cheng)

導(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)主(zhu)要由樹(shu)脂(zhi)基(ji)(ji)體(ti)、導(dao)電(dian)(dian)粒子和分散添加劑(ji)、助劑(ji)等組成。目前市場上(shang)使用的導(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)大都是填料型(xing)。填料型(xing)導(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)的樹(shu)脂(zhi)基(ji)(ji)體(ti)，原則(ze)上(shang)講，可以采(cai)用各種膠(jiao)(jiao)(jiao)勃劑(ji)類型(xing)的樹(shu)脂(zhi)基(ji)(ji)體(ti)，常(chang)用的一般有(you)(you)熱固性膠(jiao)(jiao)(jiao)黏劑(ji)如環氧樹(shu)脂(zhi)、有(you)(you)機硅樹(shu)脂(zhi)、聚(ju)酰亞胺(an)樹(shu)脂(zhi)、酚(fen)醛(quan)樹(shu)脂(zhi)、聚(ju)氨(an)酯、丙烯(xi)酸樹(shu)脂(zhi)等膠(jiao)(jiao)(jiao)黏劑(ji)體(ti)系(xi)。這些膠(jiao)(jiao)(jiao)黏劑(ji)在固化后形成了導(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)的分子骨架結構，提供了力學(xue)性能(neng)和粘接性能(neng)保障，并使導(dao)電(dian)(dian)填料粒子形成通道。由于環氧樹(shu)脂(zhi)可以在室溫或低于150℃固化，并且具有(you)(you)豐富的配(pei)方可設計性能(neng)，目前環氧樹(shu)脂(zhi)基(ji)(ji)導(dao)電(dian)(dian)膠(jiao)(jiao)(jiao)占(zhan)主(zhu)導(dao)地位。

導(dao)(dao)電(dian)膠要求導(dao)(dao)電(dian)粒子本身要有良(liang)好的導(dao)(dao)電(dian)性能(neng)粒徑要在(zai)合適的范圍內，能(neng)夠添加(jia)到導(dao)(dao)電(dian)膠基體(ti)中形(xing)成導(dao)(dao)電(dian)通(tong)路。導(dao)(dao)電(dian)填料可以是(shi)金、銀、銅、鋁、鋅、鐵(tie)、鎳的粉末和石墨(mo)及(ji)一些導(dao)(dao)電(dian)化合物