Process for forming semiconductor layers of different thickness in FDSOI technologies

摘要

In fully depleted SOI transistors, specifically designed semiconductor materials may be provided for different types of transistors, thereby, for instance, enabling a reduction of hot carrier injection in transistors that are required to be operated at a moderately high operating voltage. To this end, well-controllable epitaxial growth techniques may be applied selectively for one type of transistor, while not unduly affecting the adjustment of material characteristics of a different type of transistor.