Abstract:
Integrated circuit memory devices include an integrated circuit substrate and a plurality of lower wiring lines on the substrate and extending in a first direction. An interlayer insulating layer is on the plurality of lower wiring lines. An upper damascene wiring line is in an upper portion of the interlayer insulating layer and extending in a second direction, different from the first direction, to extend over the plurality of lower wiring lines. The upper damascene wiring line has protruded regions extending therefrom in a direction different from the second direction, the protruded regions extending over respective underlying ones of the lower wiring lines. A first via extends through the interlayer insulating layer under a first of the protruded regions and connects the upper damascene wiring line to a corresponding underlying first one of the plurality of wiring lines. A second via extends through the interlayer insulating layer under a second of the protruded regions and connects the upper damascene wiring line to a corresponding underlying second one of the plurality of wiring lines.
Abstract:
A metal interconnection structure includes a lower metal interconnection layer disposed in a first inter-layer dielectric layer. An inter-metal dielectric layer having a via contact hole that exposes a portion of surface of the lower metal layer pattern is disposed on the first inter-layer dielectric layer and the lower metal layer pattern. A second inter-layer dielectric layer having a trench that exposes the via contact hole is formed on the inter-metal dielectric layer. A barrier metal layer is formed on a vertical surface of the via contact and the exposed surface of the second lower metal interconnection layer pattern. A first upper metal interconnection layer pattern is disposed on the barrier metal layer, thereby filling the via contact hole and a portion of the trench. A void diffusion barrier layer is disposed on the first metal interconnection layer pattern and a second upper metal interconnection layer pattern is disposed on the void diffusion barrier layer to completely fill the trench.
Abstract:
A semiconductor device having a dual damascene line structure and a method for fabricating the same are disclosed. The semiconductor device and the method solve the conventional problem of a partially, or fully, closed contact hole, and restrain increase in the parasitic capacitance in an interlayer insulation layer due to an increase in the dielectric constant thereof through the use of an etching stopper layer. To achieve this, a first interlayer insulation layer is formed on a semiconductor substrate on which a first conductive pattern is formed. Next, the etching stopper pattern having an etching selection ratio with respect to the first interlayer insulation layer is partially formed in a particular area. Thereafter, a second interlayer insulation layer and a second conductive layer made of copper are formed.
Abstract:
Integrated circuit memory devices include an integrated circuit substrate and a plurality of lower wiring lines on the substrate and extending in a first direction. An interlayer insulating layer is on the plurality of lower wiring lines. An upper damascene wiring line is in an upper portion of the interlayer insulating layer and extending in a second direction, different from the first direction, to extend over the plurality of lower wiring lines. The upper damascene wiring line has protruded regions extending therefrom in a direction different from the second direction, the protruded regions extending over respective underlying ones of the lower wiring lines. A first via extends through the interlayer insulating layer under a first of the protruded regions and connects the upper damascene wiring line to a corresponding underlying first one of the plurality of wiring lines. A second via extends through the interlayer insulating layer under a second of the protruded regions and connects the upper damascene wiring line to a corresponding underlying second one of the plurality of wiring lines.
Abstract:
Integrated circuit devices include an integrated circuit substrate and a conductive lower electrode layer of a capacitor on the integrated circuit substrate. A dielectric layer is on the lower electrode layer and a conductive upper electrode layer of the capacitor is on the dielectric layer. A first intermetal dielectric layer is on the upper electrode layer. The first intermetal dielectric layer includes at least one via hole extending to the upper electrode layer. A first conductive interconnection layer is on the at least one via hole of the first intermetal dielectric layer. A second intermetal dielectric layer is on the first intermetal dielectric layer. The second intermetal dielectric layer includes at least one via hole extending to the first conductive interconnection layer and at least partially exposing the at least one via hole of the first intermetal dielectric layer. A second conductive interconnection layer is provided in the at least one via hole of the second intermetal dielectric layer that electrically contacts the first conductive interconnection layer.
Abstract:
Embodiments of the invention include a MIM capacitor that has a high capacitance that can be manufactured without the problems that affected the prior art. Such a capacitor includes an upper electrode, a lower electrode, and a dielectric layer that is intermediate the upper and the lower electrodes. A first voltage can be applied to the upper electrode and a second voltage, which is different from the first voltage, can be applied to the lower electrode. A wire layer, through which the first voltage is applied to the upper electrode, is located in the same level as or in a lower level than the lower electrode.
Abstract:
Integrated circuit devices include an integrated circuit substrate and a conductive lower electrode layer of a capacitor on the integrated circuit substrate. A dielectric layer is on the lower electrode layer and a conductive upper electrode layer of the capacitor is on the dielectric layer. A first intermetal dielectric layer is on the upper electrode layer. The first intermetal dielectric layer includes at least one via hole extending to the upper electrode layer. A first conductive interconnection layer is on the at least one via hole of the first intermetal dielectric layer. A second intermetal dielectric layer is on the first intermetal dielectric layer. The second intermetal dielectric layer includes at least one via hole extending to the first conductive interconnection layer and at least partially exposing the at least one via hole of the first intermetal dielectric layer. A second conductive interconnection layer is provided in the at least one via hole of the second intermetal dielectric layer that electrically contacts the first conductive interconnection layer.
Abstract:
Integrated circuit devices include an integrated circuit substrate and a conductive lower electrode layer of a capacitor on the integrated circuit substrate. A dielectric layer is on the lower electrode layer and a conductive upper electrode layer of the capacitor is on the dielectric layer. A first intermetal dielectric layer is on the upper electrode layer. The first intermetal dielectric layer includes at least one via hole extending to the upper electrode layer. A first conductive interconnection layer is on the at least one via hole of the first intermetal dielectric layer. A second intermetal dielectric layer is on the first intermetal dielectric layer. The second intermetal dielectric layer includes at least one via hole extending to the first conductive interconnection layer and at least partially exposing the at least one via hole of the first intermetal dielectric layer. A second conductive interconnection layer is provided in the at least one via hole of the second intermetal dielectric layer that electrically contacts the first conductive interconnection layer.
Abstract:
Integrated circuit devices include an integrated circuit substrate and a conductive lower electrode layer of a Metal-Insulator-Metal (MIM) capacitor on the integrated circuit substrate. A dielectric layer is on the lower electrode layer and a conductive upper electrode layer of the MIM capacitor is on the dielectric layer. A first intermetal dielectric layer is on the upper electrode layer. The first intermetal dielectric layer includes at least one via hole extending to the upper electrode layer. A first conductive interconnection layer is on the at least one via hole of the first intermetal dielectric layer. A second intermetal dielectric layer is on the first intermetal dielectric layer. The second intermetal dielectric layer includes at least one via hole extending to the first conductive interconnection layer and at least partially exposing the at least one via hole of the first intermetal dielectric layer. A second conductive interconnection layer is provided in the at least one via hole of the second intermetal dielectric layer that electrically contacts the first conductive interconnection layer.
Abstract:
A method of manufacturing a MIM capacitor and a interconnecting structure using a damascene process. The MIM capacitor and the first interconnecting structure can be formed at equal depths.