A system and method for object-level snapshot creation in an object-based storage system. One example system may include a materialized view creation time logic that is configured to identify a materialized view, to create a containment expression, and to relate the containment expression to the materialized view. The destination may be a secondary storage device. Processing steps are performed on the wafer and the protective layer is arranged to protect the wafer during the processing steps. The reflective layer at least partially covers the backlight surface and the side surface, and is configured for reflecting the laser beam impinging on the reflective layer to the light emission surface. The scaler then multiplies the two subsets respectively against a gain value to generate two multiplication results.