Patent ID: 10468513

Abstract:
A bidirectional silicon-controlled rectifier includes a lightly-doped semiconductor structure, a first lightly-doped region, a second lightly-doped region, a first doped well, a second doped well, a first heavily-doped area, a second heavily-doped area, a third heavily-doped area, a fourth heavily-doped area. The lightly-doped semiconductor structure, the first heavily-doped area, and the third heavily-doped area have a first conductivity type. The first lightly-doped region, the second lightly-doped region, the first doped well, the second doped well, the fourth heavily-doped area, and the second heavily-doped area have a second conductivity type. A first part of the first lightly-doped region is arranged under the first doped well. A second part of the second lightly-doped region is arranged under the second doped well.