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US 8,552,520 B2Granted
Semiconductor devices and methods for manufacturing the same
OwnerYoonsil Jin, Goohwan Shim +2inventors
InventorsYoonsil Jin, Goohwan Shim, Youngho Choe, Changseo Park
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Abstract
A semiconductor device includes a substrate and a first insulating layer. The first insulating layer includes a first lower layer and a first upper layer on the first lower layer. The first insulating layer has a first opening through the first lower layer and the first upper layer. A maximum width of the first opening at the first lower layer is different from a maximum width of the first opening at the first upper layer.
Claims17
A solar cell, comprising:
- a substrate;
- an emitter layer at an entire first surface of the substrate;
- a first lower insulating layer on the emitter layer;
- a first upper insulating layer on the first lower layer;
- a first opening through the first lower insulating layer and the first upper insulating layer, the first opening exposing the emitter layer;
- and
- a first electrode in the first opening and electrically connected to the emitter layer,
- wherein a maximum width of the first opening at the first lower insulating layer is different from a maximum width of the first opening at the first upper insulating layer, and
- wherein an entire bottom surface of the first electrode directly contacts the emitter layer exposed through the first opening.
6 more elements
Dependencies are inferred from the claim text.