Abstract: A semiconductor device is provided. The semiconductor device includes a substrate having a surface. The semiconductor device includes a conductive pad over a portion of the surface. The conductive pad has a curved top surface, and a width of the conductive pad increases toward the substrate. The semiconductor device includes a device over the conductive pad. The semiconductor device includes a solder layer between the device and the conductive pad. The solder layer covers the curved top surface of the conductive pad, and the conductive pad extends into the solder layer.

Abstract: A battery casing and a battery assembly are disclosed. The battery casing has a casing body, a least one first stress-bearing element, and at least one second stress-bearing element. The casing body has two corresponding disposed first walls and a bearing surface. The at least one first stress-bearing element is disposed on the bearing surface. The two ends of the at least one second stress-bearing element connect with the two first walls and are situated above and aligned with the at least one first stress-hearing element to form at least one stress-bearing space for accommodating at least one battery.

Abstract: A battery assembly device is disclosed. The battery assembly device includes a first frame and a plurality of battery units. The first frame has an inner surface. The plurality of battery units are disposed in the first frame, wherein any one battery unit has at least one anti-slip film and is used for touching another anti-slip film of another battery unit via the anti-slip film, or touching the inner face of the first frame via the anti-slip film.

Abstract: A recordable medium includes a first recordable structure, a second recordable structure, and a spacer layer positioned between the first and second recordable structures. The first recordable structure has a transmissivity with respect to a read beam that increases upon application of a write power to the first recordable structure. The second recordable structure has an optical property that changes upon application of a write power to the second recordable structure.

Abstract: A recordable medium includes an inscription layer and a contrast enhancing layer. The inscription layer has at least two sub-layers that combine upon application of a write power, the inscription layer having a reflectivity R1 before application of the write power and a reflectivity R2 after application of the write power. The contrast enhancing layer does not combine with the sub-layers of the inscription layer upon application of the write power. The contrast enhancing layer and the inscription layer together have a reflectivity R3 before application of the write power and a reflectivity R4 after application of the write power, and |R4?R3|>|R2?R1|.

Abstract: A recordable medium includes an inscription layer and at least one contrast inverting layer. The inscription layer has at least a first sub-layer and a second sub-layer that combine upon application of a write power. The inscription layer has a reflectivity R1 with respect to a read beam before application of the write power and a reflectivity R2 after application of the write power, and R1<R2. The at least one contrast inverting layer does not combine with the first and second sub-layers of the inscription layer upon application of the write power. The at least one contrast inverting layer and the inscription layer together have a reflectivity R3 before application of the write power and a reflectivity R4 after application of the write power, and R3>R4.

Abstract: A recordable medium includes a recordable structure including a first layer having a reflectivity R1 and a transmissivity T1, a second layer having a transmissivity T2, and a third layer having a reflectivity R3. The second layer is disposed between the first and third layers and has a thickness that is less than a Debye length determined based on a charge density of the second layer. The recordable structure has an overall reflectivity Rsum that is greater than R1+T12*T22*R2.

Abstract: A recordable medium includes a recordable structure having a first layer and a second layer in which the first and second layers do not completely overlap, and the first and second layers combine upon application of a write power to cause a change in an optical property of the recordable structure with respect to a read beam. In some examples, at least one of the first and second layers includes discontinuous regions. In some examples, at least one of the first and second layers includes a contiguous region having a shape that forms holes. In some examples, the Debye length of at least one of the first and second layers is less than 5 nm, the Debye length being determined based on a charge carrier density in the layer.

Abstract: A recordable medium includes a first recordable structure, a second recordable structure, and a spacer layer positioned between the first and second recordable structures. The first recordable structure has a transmissivity with respect to a read beam that increases upon application of a write power to the first recordable structure. The second recordable structure has an optical property that changes upon application of a write power to the second recordable structure.

Abstract: A recordable medium includes a recordable structure including a first layer having a reflectivity R1 and a transmissivity T1, a second layer having a transmissivity T2, and a third layer having a reflectivity R3. The second layer is disposed between the first and third layers and has a thickness that is less than a Debye length determined based on a charge density of the second layer. The recordable structure has an overall reflectivity Rsum that is greater than R1+T12*T22*R2.

Abstract: A recordable medium includes an inscription layer and at least one contrast inverting layer. The inscription layer has at least a first sub-layer and a second sub-layer that combine upon application of a write power. The inscription layer has a reflectivity R1 with respect to a read beam before application of the write power and a reflectivity R2 after application of the write power, and R1<R2. The at least one contrast inverting layer does not combine with the first and second sub-layers of the inscription layer upon application of the write power. The at least one contrast inverting layer and the inscription layer together have a reflectivity R3 before application of the write power and a reflectivity R4 after application of the write power, and R3>R4.

Abstract: A recordable medium includes an inscription layer and a contrast enhancing layer. The inscription layer has at least two sub-layers that combine upon application of a write power, the inscription layer having a reflectivity R1 before application of the write power and a reflectivity R2 after application of the write power. The contrast enhancing layer does not combine with the sub-layers of the inscription layer upon application of the write power. The contrast enhancing layer and the inscription layer together have a reflectivity R3 before application of the write power and a reflectivity R4 after application of the write power, and |R4?R3|>|R2?R1|.