Patent ID: 11967616
Assignee: HITACHI ENERGY LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The method according to claim 18, wherein forming the semiconductor device comprises forming a vertical silicon carbide power Insulated Gate Bipolar Transistor (IGBT);
wherein the 4H-SiC substrate forms a field stop layer;
wherein the 4H-SiC epilayer forms a drift region;
wherein the p+ type doped semiconductor layer forms a collector layer;
wherein the first region forms an emitter region;
wherein the second region forms a well region;
wherein the third region forms a channel region;
wherein the fourth region forms a contact region;
wherein the 3C-SiC layer forms a high mobility layer;
wherein the insulation layer forms a gate-oxide; and
wherein the metal region forms a gate region.