Semiconductor device and method of producing the same
First Claim
1. A semiconductor device having an inductor, comprising:
- a substrate;
a first metal layer formed on the substrate;
an insulating layer formed on the first metal layer;
an opening formed in the insulating layer; and
a second metal layer formed on the opening;
said insulating layer covering an end portion of said first metal layer.
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Accused Products
Abstract
To prevent collapse and delamination without increasing an occupied area or to reduce the area while maintaining a necessary strength, an inductor is provided by being formed on a first insulating layer on a semiconductor substrate comprises a plurality of metal layers stacked on the first insulating layer. Among the plurality of metal layers, the second insulating layer extends over the end portion of the lower-most metal layer from the first insulating layer. The other metal layers comprising the inductor are formed in contact with the upper surface of the lower-most metal layer which is not covered with the second insulating layer. The lower-most metal layer is preferably formed on the first insulating layer via a bonding layer (not shown). The lower-most layer is pressed down at the circumference by the second insulating layer, so an external force is not imposed directly on the interface between the metal layer and the insulating layer.
7 Citations
20 Claims
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1. A semiconductor device having an inductor, comprising:
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a substrate;
a first metal layer formed on the substrate;
an insulating layer formed on the first metal layer;
an opening formed in the insulating layer; and
a second metal layer formed on the opening;
said insulating layer covering an end portion of said first metal layer. - View Dependent Claims (2, 3, 4, 5)
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6. A semiconductor device having an inductance comprising:
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a substrate;
a first metal layer on the substrate formed to be a pattern for configuring the above inductance;
a first insulation layer having an opening positioned on the upper portion of the first metal film, covering the circumference of said first metal layer, and continuously extending on said substrate from the circumference; and
a second metal layer connected with said first metal layer via the opening of said first insulation layer, positioned above said first metal layer and configuring said inductance together with said first metal layer. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification