While the standard mounting procedure involves directly melting a stick of Crystalbond onto a heated carrier wafer, this process is somewhat prone to trapping pockets of air and can suffer from poor repeatability, particularly from user to user. A more consistent method of applying Crystalbond to carrier wafers is via spin-coating an aqueous solution of Crystalbond: the resulting film is thinner (~1.5 µm) and more uniform, providing better thermal contact between the process wafer and the carrier.
Any nanoFAB users wishing for more information about this process, or to receive training, please contact Scott Munro.
Downloads
- SOP: Temporary wafer bonding using Crystalbond [.pdf]