Fabrication process of a hybrid semiconductor substrate

摘要

The present invention relates to a method for manufacturing a hybrid semiconductor substrate comprising the steps of (a) providing a hybrid semiconductor substrate comprising a semiconductor-on-insulator (SeOl) region, that comprises an insulating layer over a base substrate and a SeOl layer over the insulating layer, and a bulk semiconductor region, wherein the SeOl region and the bulk semiconductor region share the same base substrate; (b) providing a mask layer over the SeOl region; and (c) forming a first impurity level by doping the SeOl region and the bulk semiconductor region simultaneously such that the first impurity level in the SeOl region is contained within the mask. Thereby avoiding higher number of process steps involved in the manufacturing process of hybrid semiconductor substrate.