| 1 | This wastes about half of the wafer material. | |
| 2 | Every machine in a modern clean room is built around 300-mm wafers. | |
| 3 | Direct wafer makes individual wafers straight from molten silicon - no cutting required. | |
| 4 | Shown here is a photomask, which bears the patterns that will be printed onto a wafer. | |
| 5 | The researchers are now extending their work to single graphene sheets that have been transferred onto silicon wafers. |