Abstract:
A method of determining a stopping power of a design structure with respect to a traveling particle. The method includes (i) providing design information of the design structure comprising a back-end-of-line layer which includes N interconnect layers, N being a positive integer, (ii) dividing each interconnect layer of the N interconnect layers into multiple pixels, and (iii) determining a first path of the traveling particle in a first interconnect layer of the N interconnect layers, (iv) identifying M path pixels of the multiple pixels of the first interconnect layer on the first path of the traveling particle, M being a positive integer, and (v) determining a first loss energy lost by the traveling particle due to its completely passing through a first pixel of the M path pixels.
Abstract:
Semiconductor interconnect structures including a surface-repair material, e.g., a noble metal or noble metal alloy, that fills hollow-metal related defects located within a conductive material are provided. The filling of the hollow-metal related defects with the surface repair material improves the electromigration (EM) reliability of the structure as well as decreasing in-line defect related yield loss.
Abstract:
Techniques for embedding silicon germanium (e-SiGe) source and drain stressors in nanoscale channel-based field effect transistors (FETs) are provided. In one aspect, a method of fabricating a FET includes the following steps. A doped substrate having a dielectric thereon is provided. At least one silicon (Si) nanowire is placed on the dielectric. One or more portions of the nanowire are masked off leaving other portions of the nanowire exposed. Epitaxial germanium (Ge) is grown on the exposed portions of the nanowire. The epitaxial Ge is interdiffused with Si in the nanowire to form SiGe regions embedded in the nanowire that introduce compressive strain in the nanowire. The doped substrate serves as a gate of the FET, the masked off portions of the nanowire serve as channels of the FET and the embedded SiGe regions serve as source and drain regions of the FET.
Abstract:
An interconnect structure is provided that has enhanced electromigration reliability without degrading circuit short yield, and improved technology extendibility. The inventive interconnect structure includes a dielectric material having a dielectric constant of about 3.0 or less. The dielectric material has at least one conductive material embedded therein. A noble metal cap is located directly on an upper surface of the at least one conductive region. The noble metal cap does not extend onto an upper surface of a diffusion barrier that separates the at least one conductive material from the dielectric material, and the noble cap material does not deposit on the dielectric surface. A method fabricating such an interconnect structure utilizing a low temperature (about 200°C or less) chemical deposition process is also provided.
Abstract:
A method of determining a stopping power of a design structure with respect to a traveling particle. The method includes (i) providing design information of the design structure comprising a back-end-of-line layer which includes N interconnect layers, N being a positive integer, (ii) dividing each interconnect layer of the N interconnect layers into multiple pixels, and (iii) determining a first path of the traveling particle in a first interconnect layer of the N interconnect layers, (iv) identifying M path pixels of the multiple pixels of the first interconnect layer on the first path of the traveling particle, M being a positive integer, and (v) determining a first loss energy lost by the traveling particle due to its completely passing through a first pixel of the M path pixels.