摘要:
A bridge structure for use in a semiconductor device includes a semiconductor substrate and a semiconductor structure layer. The semiconductor structure layer is formed on a surface of the semiconductor substrate and a lattice difference is formed between the semiconductor structure layer and the semiconductor substrate. The semiconductor structure layer includes at least a first block, at least a second block and at least a third block, wherein the first block and the third block are bonded on the surface of the semiconductor substrate, the second block is floated over the semiconductor substrate and connected with the first block and the third block.
摘要:
A germanium (Ge) structure includes a substrate, a Ge layer and at least a Ge spatial structure. The Ge layer is formed on the substrate, and a surface of the Ge layer is a Ge {110} lattice plane. The Ge spatial structure is formed in the Ge layer and includes a top surface and a sidewall surface, wherein the top surface is a Ge {110} lattice plane and the sidewall surface is perpendicular to the top surface. An axis is formed at a junction of the sidewall surface and the top surface, and an extensive direction of the axis is parallel to a Ge [112] lattice vector on the surface of the Ge layer, therefore the sidewall surface is a Ge {111} lattice plane. Because Ge {111} surface channels have very high electron mobility, this Ge spatial structure may be applied for fabricating high-performance Ge semiconductor devices.