Abstract:
PROBLEM TO BE SOLVED: To prevent an electric field from an anode of the bottommost layer of a multi-layer capacitor from entering a semiconductor substrate. SOLUTION: In a multi-layer capacitor structure, a plurality of conductor carrier layers are formed on a substrate, and each of them has a plurality of interdigitated conductive fingers provided in a dielectric material layer, and each of the plurality of interdigitated conductive fingers on each conductor carrier layer extends in parallel with the side of a square region of the dielectric material layer and includes at least one bend of an angle of 90°. The plurality of interdigitated conductive fingers include the plurality of conductor carrier layers including a first set of fingers connected to an anode terminal and a second set of fingers connected to a cathode terminal, and high dielectric constant material layers formed between the plurality of conductor carrier layers, and only the first set of interdigitated conductive fingers connected to the cathode terminal is provided in the bottommost layer that is in closest proximity to the substrate relative to other layers of the plurality of conductor carrier layers. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A metal capacitor structure includes a plurality of line level structures (15, 16, 25, 26) vertically interconnected with via level structures (31, 32, 33, 34, 41, 42). Each first line level structure (15 or 25) and each second line level structure (16 or 26) includes a set of parallel metal lines (11 or 21, 12 or 22) that is physically joined at an end to a rectangular tab structure (13 or 23, 14 or 24) having a rectangular horizontal cross-sectional area. A first set of parallel metal lines (11 or 21) within a first line level structure (15 or 25) and a second set of parallel metal lines (12 or 22) within a second line level structure (16 or 26) are interdigitated and parallel to each other, and can collectively form an interdigitated uniform pitch structure ((11, 12) or (21, 22)). Because the rectangular tab structures (13 or 23, 14 or 24) do not protrude toward each other within a region between two facing sidewalls of the rectangular tab structures (13 or 23, 14 or 24), sub- resolution assist features (SRAFs) can be employed to provide a uniform width and a uniform pitch throughout the entirety of the interdigitated uniform pitch structure ((11, 12) or (21, 22)).
Abstract:
A metal capacitor structure includes a plurality of line level structures (15, 16, 25, 26) vertically interconnected with via level structures (31, 32, 33, 34, 41, 42). Each first line level structure (15 or 25) and each second line level structure (16 or 26) includes a set of parallel metal lines (11 or 21, 12 or 22) that is physically joined at an end to a rectangular tab structure (13 or 23, 14 or 24) having a rectangular horizontal cross-sectional area. A first set of parallel metal lines (11 or 21) within a first line level structure (15 or 25) and a second set of parallel metal lines (12 or 22) within a second line level structure (16 or 26) are interdigitated and parallel to each other, and can collectively form an interdigitated uniform pitch structure ((11, 12) or (21, 22)). Because the rectangular tab structures (13 or 23, 14 or 24) do not protrude toward each other within a region between two facing sidewalls of the rectangular tab structures (13 or 23, 14 or 24), sub- resolution assist features (SRAFs) can be employed to provide a uniform width and a uniform pitch throughout the entirety of the interdigitated uniform pitch structure ((11, 12) or (21, 22)).
Abstract:
Eine Metallkondensatorstruktur beinhaltet eine Vielzahl von Leitungsebenenstrukturen (15, 16, 25, 26), die vertikal mit Durchkontaktierungsebenenstrukturen (31, 32, 33, 34, 41, 42) verbunden sind. Jede erste Leitungsebenenstruktur (15 oder 25) und jede zweite Leitungsebenenstruktur (16 oder 26) beinhaltet einen Satz paralleler Metallleitungen (11 oder 21, 12 oder 22), der physisch an einem Ende mit einer rechteckigen Laschenstruktur (13 oder 23, 14 oder 24) verbunden ist, die eine rechteckige horizontale Querschnittsfläche aufweist. Ein erster Satz paralleler Metallleitungen (11 oder 21) innerhalb einer ersten Leitungsebenenstruktur (15 oder 25) und ein zweiter Satz paralleler Metallleitungen (12 oder 22) innerhalb einer zweiten Leitungsebenenstruktur (16 oder 26) greifen ineinander und verlaufen parallel zueinander und können gemeinsam eine ineinandergreifende, gleichmäßige Rasterabstandstruktur ((11, 12) oder (21, 22)) ausbilden. Da die rechteckigen Laschenstrukturen (13 oder 23, 14 oder 24) nicht innerhalb eines Bereichs zwischen zwei gegenüberliegenden Seitenwänden der rechteckigen Laschenstrukturen (13 oder 23, 14 oder 24) in Richtung zueinander vorstehen, können nicht auflösbare Hilfsstrukturen (SRAFs) eingesetzt werden, um eine gleichmäßige Breite und einen gleichmäßigen Rasterabstand in der gesamten ineinandergreifenden, gleichmäßigen Rasterabstandstruktur ((11, 12) oder (21, 22)) bereitzustellen.