摘要:
The present invention relates generally to semiconductor devices and more particularly, to a structure and method of forming an abrupt junction in the channel regions of high density technologies, such as tight pitch FinFET devices, using recessed source-drain (S-D) regions and annealing techniques. In an embodiment, a faceted buffer layer, deposited before the S-D region is formed, may be used to control the profile and dopant concentration of the junction under the channel. In another embodiment, the profile and dopant concentration of the junction may be controlled via a dopant concentration gradient in the S-D region.
摘要:
An embedded, strained epitaxial semiconductor material, i.e., an embedded stressor element, is formed at the footprint of at least one pre-fabricated field effect transistor that includes at least a patterned gate stack, a source region and a drain region. As a result, the metastability of the embedded, strained epitaxial semiconductor material is preserved and implant and anneal based relaxation mechanisms are avoided since the implants and anneals are performed prior to forming the embedded, strained epitaxial semiconductor material.
摘要:
The present invention relates generally to semiconductor devices and more particularly, to a structure and method of forming an abrupt junction in the channel regions of high density technologies, such as tight pitch FinFET devices, using recessed source-drain (S-D) regions and annealing techniques. In an embodiment, a faceted buffer layer, deposited before the S-D region is formed, may be used to control the profile and dopant concentration of the junction under the channel. In another embodiment, the profile and dopant concentration of the junction may be controlled via a dopant concentration gradient in the S-D region.
摘要:
A method for producing a semiconductor structure, as well as a semiconductor structure, that uses a partial removal of an insulating layer around a semiconductor fin, and subsequently epitaxially growing an additional semiconductor material in the exposed regions, while maintaining the shape of the fin with the insulating layer.