Patent ID: 11887852
Assignee: INFINEON TECHNOLOGIES DRESDEN GMBH & CO. KG
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of manufacturing a lateral transistor, the method comprising:
providing a semiconductor substrate;
forming a dielectric layer over the semiconductor substrate;
forming a gate layer over the dielectric layer;
applying a photoresist layer over the gate layer;
opening the photoresist layer by lithography to form a first opening of a first opening size in the photoresist layer;
transferring the first opening into a second opening of a second opening size, the second opening being either formed in the photoresist layer or in an auxiliary layer;
forming a body region in the semiconductor substrate by dopant implantation; and
structuring the gate layer to form a gate edge,
wherein an overlap between the structured gate layer and the body region is controlled by an offset between the first opening size and the second opening size.