Semiconductor device and method of designing the same
AssigneeRohm Co., Ltd.
InventorNobuaki Umeki
Life of this patent
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Abstract
A semiconductor device includes a first wiring layer, a second wiring layer and an insulating layer provided between the first wiring layer and the second wiring layer. A capacitor has a first electrode formed on the first wiring layer and a second electrode formed on the second wiring layer in such a manner that the second electrode overlaps with the first electrode. To the first electrode, two connection wirings are connected and, to the second electrode, two connection wirings are connected. The two connection wirings are connected to each other with low DC impedance substantially only through the first electrode. Similarly, the two connection wirings are connected to each other with low DC impedance substantially only through the second electrode.
Claims5
A semiconductor device having a first wiring layer, a second wiring layer and an insulating layer provided between the first wiring layer and the second wiring layer,
- comprising a capacitor having a first electrode formed on the first wiring layer and a second electrode formed on the second wiring layer in such a manner that the second electrode overlaps with the first electrode, wherein
- two connection wirings are respectively connected to the first electrode and the second electrode, wherein
- the first electrode and the second electrode are rectangular and the two connection wirings connected to the first electrode are led out from different sides of the first electrode, and the two connection wirings connected to the second electrode are led out from different sides of the second electrode.
A semiconductor device constructed by disposing a unit cell with the unit cell being a unit capacitor including:
- a first electrode formed on a first wiring layer;
- a second electrode formed on a second wiring layer arranged to sandwich an insulating layer with the first wiring layer in such a manner that the second electrode overlaps with the first electrode;
- two connection wirings connected to the first electrode;
- and
- two connection wirings connected to the second electrode,
- wherein
- the first electrode and the second electrode are rectangular and the two connection wirings connected to the first electrode are led out from different sides of the first electrode, and the two connection wirings connected to the second electrode are led out from different sides of the second electrode.
Dependencies are inferred from the claim text.