Abstract:
A method for forming a semiconductor structure is provided. The method includes providing a substrate; forming a dielectric layer on the substrate; forming a conductor pattern on a main surface of the dielectric layer, the conductor pattern having a top surface and sidewalls; and performing a selective atomic layer deposition (ALD) process to selectively deposit a conformal metal layer onto the top surface and sidewalls of the conductor pattern, but without depositing onto the main surface of the dielectric layer substantially.
Abstract:
A semiconductor structure is provided. The semiconductor structure includes a substrate; a dielectric layer overlying the substrate; a conductor pattern on a main surface of the dielectric layer, the conductor pattern having a top surface and sidewalls; and a conformal metal layer selectively deposited on the top surface and sidewalls, but without deposited on the main surface of the dielectric layer substantially.
Abstract:
A through-silicon via (TSV) includes an insulation layer continuously lining a straight sidewall of a recessed via feature; a barrier layer continuously covering the insulation layer; a first portion of a non-continuous seed layer disposed at one end of the recessed via feature; a non-continuous dielectric layer partially covering the straight sidewall of the recessed via feature; and a conductive layer filling the recessed via feature.
Abstract:
An interconnection structure includes a lower layer metal wire in a first inter-metal dielectric layer on a substrate; a second inter-metal dielectric layer on the first inter-metal dielectric layer and covering the lower layer metal wire; an upper layer metal wire on the second inter-metal dielectric layer; and a via interconnection structure in the second inter-metal dielectric layer for interconnecting the upper layer metal wire with the lower layer metal wire, wherein the via interconnection structure comprises a tungsten stud on the lower layer metal wire, and an aluminum plug stacked on the tungsten stud.
Abstract:
A through-silicon via (TSV) includes an insulation layer continuously lining a straight sidewall of a recessed via feature; a barrier layer continuously covering the insulation layer; a first portion of a non-continuous seed layer disposed at one end of the recessed via feature; a non-continuous dielectric layer partially covering the straight sidewall of the recessed via feature; and a conductive layer filling the recessed via feature.
Abstract:
A method for forming a semiconductor structure is provided. The method includes providing a substrate; forming a dielectric layer on the substrate; forming a conductor pattern on a main surface of the dielectric layer, the conductor pattern having a top surface and sidewalls; and performing a selective atomic layer deposition (ALD) process to selectively deposit a conformal metal layer onto the top surface and sidewalls of the conductor pattern, but without depositing onto the main surface of the dielectric layer substantially.
Abstract:
A method of forming conductive pattern is provided. A seeding layer is formed on an underlayer. By using an energy ray, an irradiation treatment is performed on a portion of a surface of the seeding layer. The seeding layer thus includes a plurality of irradiated regions and a plurality of unirradiated regions. A conversion treatment is performed on the irradiated regions of the seeding layer. A selective growth process is performed, so as to form a conductive pattern on each unirradiated region of the seeding layer. The irradiated regions of the seeding layer are removed, so that the conductive patterns are insulated from each other.
Abstract:
A method for fabricating a semiconductor a semiconductor device having a stacked-gate structure. A polysilicon layer is formed overlying a substrate, which is insulated from the substrate by a dielectric layer. A metal-flash layer is formed overlying the polysilicon layer, and then a tungsten nitride layer is formed overlying the titanium layer. The tungsten nitride layer is annealed using nitrogen and hydrogen gases. A tungsten layer and a cap layer are successively formed overlying the tungsten nitride layer.
Abstract:
A method for forming a semiconductor device with a vertical gate is disclosed, including providing a substrate, forming a recess in the substrate, forming a gate dielectric layer on a sidewall and a bottom of the recess, forming an adhesion layer in the recess and on the gate dielectric layer, wherein the adhesion layer is a metal silicide nitride layer, and forming a gate layer in the recess and on the adhesion layer.
Abstract:
A method for fabricating a semiconductor a semiconductor device having a stacked-gate structure. A polysilicon layer is formed overlying a substrate, which is insulated from the substrate by a dielectric layer. A metal-flash layer is formed overlying the polysilicon layer, and then a tungsten nitride layer is formed overlying the titanium layer. The tungsten nitride layer is annealed using nitrogen and hydrogen gases. A tungsten layer and a cap layer are successively formed overlying the tungsten nitride layer.