Abstract:
An improvement is achieved in the reliability of a semiconductor device by preventing a dielectric breakdown between two semiconductor chips facing each other. During the manufacturing of first and second semiconductor chips, the process of planarizing the upper surfaces of insulating films is performed. Then, the first and second semiconductor chips are stacked via an insulating sheet with the respective insulating films of the first and second semiconductor chips facing each other such that the respective coils of the first and second semiconductor chips are magnetically coupled to each other.
Abstract:
A semiconductor device includes a plurality of first wires formed in a first layer, a plurality of second wires formed to intersect the plurality of first wires in a second layer stacked on the first layer, a plurality of first vias formed at intersections of the plurality of first wires and the plurality of second wires, and an inductor formed in a third layer stacked on the first layer and the second layer.
Abstract:
A sensor device includes a printed circuit board, a power line, a first semiconductor device, and a second semiconductor device. The first semiconductor device includes a first inductor, and the second semiconductor device includes a second inductor. Each inductor is formed using an interconnect layer. The power line extends between the two inductors without overlapping the first and second inductor, when viewed from a direction perpendicular to a main surface of the printed circuit board.
Abstract:
A semiconductor device includes a semiconductor substrate, a first wiring layer including a plurality of first dummy metals provided inside an inductor wiring, a plurality of second dummy metals provided outside the inductor wiring, and a plurality of third dummy metals provided to overlap the inductor wiring in a plan view, and a second wiring layer provided between the semiconductor substrate and the first wiring layer. The second wiring layer includes the inductor wiring formed in the second wiring layer, a first region surrounding the inductor wiring which includes a plurality of fourth dummy metals, and a second region surrounding the first region which includes a plurality of fifth dummy metals. A density of the fourth dummy metals is lower than a density of the fifth dummy metals.
Abstract:
A semiconductor device includes a semiconductor substrate, and a multilayer wiring layer provided over the semiconductor substrate. The multilayer wiring layer includes an inductor wiring formed in one wiring layer, a plurality of first dummy metals formed in the same layer as the inductor and provided inside the inductor, a plurality of second dummy metals formed in a same layer as the inductor and provided outside the inductor, a plurality of third dummy metals formed in a layer lower than the one wiring layer including the inductor, and provided inside the inductor in a plan view, a plurality of fourth dummy metals formed in a same layer as the plurality of third dummy metals and provided outside the inductor in the plan view, and a plurality of fifth dummy metals formed in the same layer as the plurality of third dummy metals and provided to overlap with the inductor.
Abstract:
To suppress the noise caused by an inductor leaks to the outside, and also to be configured such that magnetic field intensity change reaches the inductor. An inductor surrounds an internal circuit in a planar view and also is coupled electrically to the internal circuit. The upper side of the inductor is covered by an upper shield part and the lower side of the inductor is covered by a lower shield part. The upper shield part is formed by the use of a multilayered wiring layer. The upper shield part has plural first openings. The first opening overlaps the inductor in the planar view.
Abstract:
A semiconductor device includes a semiconductor substrate, and a multilayer wiring layer provided over the semiconductor substrate. The multilayer wiring layer includes an inductor wiring formed in one wiring layer, a plurality of first dummy metals formed in the same layer as the inductor and provided inside the inductor, a plurality of second dummy metals formed in a same layer as the inductor and provided outside the inductor, a plurality of third dummy metals formed in a layer lower than the one wiring layer including the inductor, and provided inside the inductor in a plan view, a plurality of fourth dummy metals formed in a same layer as the plurality of third dummy metals and provided outside the inductor in the plan view, and a plurality of fifth dummy metals formed in the same layer as the plurality of third dummy metals and provided to overlap with the inductor.
Abstract:
A first semiconductor chip and a second semiconductor chip are stacked such that a first inductor and a second inductor face each other. An insulating sheet is disposed between the first semiconductor chip and the second semiconductor chip. The sealing member seals the first semiconductor chip, the second semiconductor chip, and the insulating sheet. The sealing member is disposed both between the insulating sheet and the first semiconductor chip and between the insulating sheet and the second semiconductor chip.
Abstract:
In a semiconductor device, a semiconductor substrate includes a bulk layer, a buried oxide layer provided in at least a partial region on the bulk layer, and a surface single crystal layer on the buried oxide layer. An inductor is provided above a main surface side of the semiconductor substrate on which the surface single crystal layer is disposed. To increase a Q value of the inductor, a ground shield is an impurity region formed in the bulk layer below the inductor and below the buried oxide layer.
Abstract:
A semiconductor device includes: a plurality of first wires formed in a first layer and indicating fixed potentials; and an inductor formed in a second layer stacked on the first layer, and wiring widths of the first wires located within a range of a formation region of the inductor in a plan view among the plurality of first wires are formed narrower than wiring widths of the first wires located outside the range of the formation region of the inductor.