摘要:
A method of forming an integrated circuit interconnect structure is presented. A first conductive line is formed over a semiconductor substrate. A conductive cap layer is formed on the first conductive line to improve device reliability. An etch stop layer (ESL) is formed on the conductive cap layer. An inter-level dielectric (IMD) is formed on the ESL. A via opening and a trench are formed in the ESL, IMD, and conductive cap layer. A recess is formed in the first conductive line. The recess can be formed by over etching when the first dielectric is etched, or by a separate process such as argon sputtering. A second conductive line is formed filling the trench, opening and recess.
摘要:
A method of forming an integrated circuit interconnect structure is presented. A first conductive line is formed over a semiconductor substrate. A conductive cap layer is formed on the first conductive line to improve device reliability. An etch stop layer (ESL) is formed on the conductive cap layer. An inter-level dielectric (IMD) is formed on the ESL. A via opening and a trench are formed in the ESL, IMD, and conductive cap layer. A recess is formed in the first conductive line. The recess can be formed by over etching when the first dielectric is etched, or by a separate process such as argon sputtering. A second conductive line is formed filling the trench, opening and recess.
摘要:
A method of electrochemical deposition (ECD) provides a barrier and a seed layer on a substrate. The surfaces of the substrate are pre-treated before a metal layer is electrochemically deposited thereon in an electrochemical plating cell with a physical or a chemical surface treatment process. The electrochemical plating cell is covered by a cap to prevent evaporation of the electrolyte solution. The electrochemical plating cell includes a substrate holder assembly with a lift seal, e.g., with a contact angle θ less than 90° between the lift seal and the substrate. The substrate holder assembly includes a substrate chuck at the rear side of the substrate.
摘要:
A method of electrochemical deposition (ECD) provides a barrier and a seed layer on a substrate. The surfaces of the substrate are pre-treated before a metal layer is electrochemically deposited thereon in an electrochemical plating cell with a physical or a chemical surface treatment process. The electrochemical plating cell is covered by a cap to prevent evaporation of the electrolyte solution. The electrochemical plating cell includes a substrate holder assembly with a lift seal, e.g., with a contact angle θ less than 90° between the lift seal and the substrate. The substrate holder assembly includes a substrate chuck at the rear side of the substrate.
摘要:
A method of electrochemical deposition (ECD) provides a barrier and a seed layer on a substrate. The surfaces of the substrate are pre-treated before a metal layer is electrochemically deposited thereon in an electrochemical plating cell with a physical or a chemical surface treatment process. The electrochemical plating cell is covered by a cap to prevent evaporation of the electrolyte solution. The electrochemical plating cell includes a substrate holder assembly with a lift seal, e.g., with a contact angle θ less than 90° between the lift seal and the substrate. The substrate holder assembly includes a substrate chuck at the rear side of the substrate.
摘要:
A conductive polymer between two metallic layers acts a glue layer, a barrier layer or an activation seed layer. The conductive polymer layer is employed to encapsulate a copper interconnection structure to prevent copper diffusion into any overlying layers and improve adhesive characteristics between the copper and any overlying layers.
摘要:
A system and method for providing a passivation structure for semiconductor devices is provided. In an embodiment, the passivation structure comprises a first barrier layer and a second barrier layer, wherein the second barrier layer may comprise a material, such as cobalt and/or nickel, that is less pure than the first barrier layer. In another embodiment, a single gradient barrier layer is formed. In this embodiment the single gradient barrier layer exhibits a greater pure conductive material, such as cobalt and/or nickel, nearer the conductive line than near the surface.
摘要:
A method for plating includes positioning a substrate facing a plating solution. The method also includes immersing the substrate into the plating solution while plating a layer of material over a surface of the substrate, wherein an immersion speed of the substrate is about 100 millimeters per second (mm/s) or more while at least one portion of the substrate contacts the plating solution.
摘要:
A conductive polymer between two metallic layers acts a glue layer, a barrier layer or an activation seed layer. The conductive polymer layer is employed to encapsulate a copper interconnection structure to prevent copper diffusion into any overlying layers and improve adhesive characteristics between the copper and any overlying layers.
摘要:
Semiconductor devices and methods for fabricating the same. The devices include a substrate, a catalyst layer, a second dielectric layer, and carbon nanotubes (CNTs). The substrate comprises an overlying first dielectric layer with an electrode embedded therein. The catalyst layer overlies the electrode and the first dielectric layer and substantially comprises Co and M1, wherein M1 is selected from a group consisting of W, P, B, Bi, Ni, and a combination thereof. The second dielectric layer overlies the catalyst layer and comprises an opening exposing parts of the catalyst layer. The carbon nanotubes (CNTs) are disposed on the exposed catalyst layer and electrically connect the electrode.