Patent ID: 6891206

Claim:
A lateral thyristor structure for protection against electrostatic discharge, comprising: at least two lateral thryristors, which each include a semiconductor substrate of a first conduction type, with a surface; a well region of a second conduction type, opposite to said first conduction type, which is introduced into said surface of said semiconductor substrate; a first strongly doped region of said second conduction type that is introduced into said surface of said semiconductor substrate and is electrically connected to a first terminal; a second strongly doped region of said first conduction type that is introduced into said well region and is electrically connected to a second terminal; a third strongly doped region of said second conduction type, which is introduced into said well region, and is electrically connected to said second terminal; and a fourth strongly doped region of said second conduction type, which is introduced into said surface of said semiconductor substrate and into said well region, and is spatially situated above a pn junction that is formed between said semiconductor substrate and said well region, and between said third strongly doped region and said first strongly doped region.