Patent ID: 11923477
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method comprising:
processing a first single-crystal gallium nitride layer for use in an electronic device, comprising the successive steps of:
a) performing an ion implantation of indium or of aluminum into an upper portion of the first single-crystal gallium nitride layer to make the upper portion of the first single-crystal gallium nitride layer amorphous without amorphizing a lower portion of the first single-crystal gallium nitride layer; and
b) performing a solid phase recrystallization anneal of the upper portion of the first single-crystal gallium nitride layer, resulting in transforming the upper portion of the first single-crystal gallium nitride layer into a crystalline indium gallium nitride or aluminum gallium nitride layer,
wherein, during step a), a complementary implantation of nitrogen is performed to compensate for the indium or aluminum input in the upper portion of the first single-crystal gallium nitride layer.