Patent ID: 11894422
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A gate-controlled diode, comprising:
a substrate;
a gate insulation layer;
a gate, stacked on the substrate, wherein the gate is embedded in a surface of the substrate, and the gate insulation layer covers the surface of the substrate in which the gate is disposed;
a first two-dimensional semiconductor layer comprising a bipolar conductive material, wherein the first two-dimensional semiconductor layer is stacked on the gate insulation layer;
a second two-dimensional semiconductor layer, wherein a portion of the second two-dimensional semiconductor layer is stacked on the gate insulation layer, another portion of the second two-dimensional semiconductor layer is stacked on the first two-dimensional semiconductor layer, the another portion of the second two-dimensional semiconductor layer stacked on the first two-dimensional semiconductor layer forms a heterojunction, and an orthographic projection of the heterojunction onto the substrate is in an orthographic projection of the gate onto the substrate;
a source, wherein the source is stacked on the second two-dimensional semiconductor layer, the source is electrically connected to the second two-dimensional semiconductor layer, and the source is insulated from the first two-dimensional semiconductor layer;
a drain, disposed separately from the source, wherein the drain is stacked on the first two-dimensional semiconductor layer, the drain is electrically connected to the first two-dimensional semiconductor layer, and the drain is insulated from the second two-dimensional semiconductor layer; and
an isolation layer between the drain and an end of the second two-dimensional semiconductor layer, and between the first two-dimensional semiconductor layer and the second two-dimensional semiconductor layer,, wherein
the gate comprises:
a bottom surface;
a first end surface, closer to the drain than the source; and
a second end surface, closer to the source than the drain, wherein the first end surface and the second end surface are connected to two opposite ends of the bottom surface,

the drain comprises:
a first side surface on a side of the drain facing the source,

the source comprises:
a second side surface spaced from and facing the first side surface, and

the first side surface is coplanar with the first end surface, and the second side surface is coplanar with the second end surface.