Published online by Cambridge University Press: 21 February 2011
μc-Si:H:F can be deposited by if plasma-CVD of fluorinated gas sources like SiF4 and SiH2F2, mixed with H2 and/or SiH4. However, this growth process is usually not selective: the layers are deposited on SiO2 as well as on Si substrates. In this paper, selective growth from SiF4 + SiH4 is reported. N+ Si layers were deposited on <100> Si and poly-Si with a conductivity up to 300 resp. 100 S/cm. The selective growth process was applied for Source and Drain regions of poly-Si thin film transistors on insulating substrate.