Patent ID: 11876127
Assignee: RENESAS ELECTRONICS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The semiconductor device according to claim 1 further comprising:
a stripe-patterned trench gate formed on the first main surface so that the stripe patterns face one another;
an n-type hole barrier layer formed on the first main surface so as to be below the p-type base layer;
a stripe-patterned trench emitter formed on the first main surface so as to be arranged with a predetermined distance from the stripe-patterned trench gate and so that the stripe patterns face one another;
a p-type floating layer arranged between the trench gate and the trench emitter and having one end in contact with a side surface of the trench gate and the other end in contact with a side surface of the trench emitter;
an n-type field stop layer formed on the second main surface so as to be inside the p-type collector layer; and
an n-type drift layer arranged between the n-type field stop layer and the n-type hole barrier layer,
wherein the p-type base layer is formed in a region surrounded by the stripe-patterned trench gate.