Patent ID: 11881537
Assignee: SILANNA UV TECHNOLOGIES PTE LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A light-emitting diode device comprising:
a first conductivity type layer having a first conductivity type;
an impact ionization layer on the first conductivity type layer, the impact ionization layer comprising a first material;
a charge layer on the impact ionization layer, the charge layer comprising a second material and having a net charge of the first conductivity type;
a first intrinsic layer on the charge layer; and
a contact layer on the first intrinsic layer;
wherein the second material comprises a polar oxide or a non-polar oxide; and
wherein the charge layer forms a barrier for transporting carriers of the first conductivity type until a bias is applied between the first conductivity type layer and the contact layer to flatten the barrier.