低温多晶硅薄膜晶体管(LTPS-TFT)驱动技术是实现大尺寸全彩平板显示的必由之路.然而,传统的低温多晶硅薄膜制作工艺存在着工序复杂、薄膜均匀性差、可能有金属污染且造价昂贵等问题.因此,有必要研发新一代的低温多晶硅薄膜制备工艺以期进一步提高薄膜质量,降低驱动成本.本文首先介绍了金属诱导横向晶化法(MILC)和准分子激光晶化法(ELA)制备低温多晶硅薄膜的原理,分析了两者各自的优缺点.接着,重点阐述了电感耦合等离子体化学气相沉积法(ICP-CVD)的工作原理和特点,并介绍了目前ICP-CVD在低温多晶硅薄膜制备上所取得的进展.
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