Effect of rapid thermal process on oxygen precipitation and denuded zone in nitrogen-doped silicon wafers
The effect of rapid thermal process (RTP) on the oxygen precipitation and on the denuded zone (DZ) formation in nitrogen-doped Czochralski (NCZ) silicon wafers has been investigated. The DZ can be formed at the surface of NCZ wafers subjected to RTP annealing. However, the oxygen precipitation and bulk microdefects in NCZ silicon are changed by RTP preannealing, which is a result of NN bonds broken during RTP treatment.
rapid thermal process oxygen precipitation denuded zone czochralski silicon nitrogen doping