摘要:
The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a patterned dielectric layer having a plurality of first openings. The method includes forming a conductive liner layer over the patterned dielectric layer, the conductive liner layer partially filling the first openings. The method includes forming a trench mask layer over portions of the conductive liner layer outside the first openings, thereby forming a plurality of second openings, a subset of which are formed over the first openings. The method includes depositing a conductive material in the first openings to form a plurality of vias and in the second openings to form a plurality of metal lines. The method includes removing the trench mask layer.
摘要:
The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a patterned dielectric layer having a plurality of first openings. The method includes forming a conductive liner layer over the patterned dielectric layer, the conductive liner layer partially filling the first openings. The method includes forming a trench mask layer over portions of the conductive liner layer outside the first openings, thereby forming a plurality of second openings, a subset of which are formed over the first openings. The method includes depositing a conductive material in the first openings to form a plurality of vias and in the second openings to form a plurality of metal lines. The method includes removing the trench mask layer.
摘要:
An interconnect structure includes a first trench and a second trench. The second trench is wider than the first trench. Both trenches are lined with a diffusion barrier layer, and a first conductive layer is deposited over the diffusion barrier layer. A metal cap layer is deposited over the first conductive layer. A second conductive layer is deposited over the metal cap layer in the second trench.
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:
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 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:
The top surfaces of conductive features are treated with a treatment solution before forming a passivation layer over the conductive features. The treatment solution includes a cleaning solution and a chemical grafting precursor. The treatment solution may also include a leveling and wetting agent to improve coverage uniformity of the chemical grafting precursor. The method results in a uniform passivation layer formed over conductive features across a surface of a workpiece.
摘要:
The top surfaces of conductive features are treated with a treatment solution before forming a passivation layer over the conductive features. The treatment solution includes a cleaning solution and a chemical grafting precursor. The treatment solution may also include a leveling and wetting agent to improve coverage uniformity of the chemical grafting precursor. The method results in a uniform passivation layer formed over conductive features across a surface of a workpiece.
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.