| 摘要 |
A structure for protecting a device includes a first layer, one or more first microstructures on the first layer, and a second layer disposed on the first layer. The second layer is disposed on a surface of the first layer on which one or more microstructures are provided. The microstructure may have a hemispheric shape or other random shapes having a curved surface. Since the area of the interface surface between layers is increased due to the at least one microstructure, the stress per unit area of the interface surface is reduced. Further, the microstructure increases the length of the path that ambient species need to travel in order to reach a device or other active components, thereby reducing the amount of infiltrating ambient species.
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