Bonded SOI wafer with <100> device layer and <110> substrate for performance improvement

摘要

A new silicon structure is provided. Under a first embodiment of the invention, a first silicon substrate having a <100> crystallographic orientation is bonded to the surface of a second silicon substrate having a <110> crystallographic orientation, the wafer alignment notch of the first and the second silicon substrates are aligned with each other. Under a first embodiment of the invention, a first silicon substrate having a <100> crystallographic orientation is bonded to the surface of a second silicon substrate having a <110> crystallographic orientation, the wafer alignment notch of the first and the second silicon substrates are not aligned with each other.