Figure 1

The process flow of the heterogeneous integration of GaN with Si(100) substrates using the ion-cutting method. (a) Implanting H ions in the bulk GaN wafer; (b) Cleaning and bonding GaN with Si(100) handle wafer; (c) Annealing and transferring the GaN film on the Si(100) substrate; (d) Post annealing to enhance the bonding strength and to recover the implantation-induced damage. (e) Schematic diagram of the die-to-wafer heterogeneous integration of GaN and Si(100) devices.