Patent ID: 8633563

Claim:
A high-voltage integrated circuit device, comprising: a semiconductor substrate of a first conduction type; a low-side circuit portion of a second conduction type, disposed on the semiconductor substrate and connected to a low-voltage power supply which takes a GND potential as reference; a high-side circuit portion of the second conduction type, disposed on the semiconductor substrate at a distance from the low-side circuit portion and connected to a low-voltage power supply which takes, as reference, an intermediate potential higher than the GND potential; a region of the first conduction type which is electrically connected to the GND potential, is disposed surrounding the high-side circuit portion, and forms a high-voltage junction terminating region together with an outer peripheral portion of the low-side circuit portion; a first pickup electrode, disposed in the first conduction type region; a second pickup electrode, connected to a high-potential side of the low-voltage power supply taking the intermediate potential as reference, and disposed on an inside of the high-voltage junction terminating region and in an outer peripheral portion of the high-side circuit portion; a first high-concentration contact region of the first conduction type that is in Ohmic contact with the first pickup electrode; and a second high-concentration contact region of the second conduction type that is in Ohmic contact with the second pickup electrode, wherein at least one region among the first high-concentration contact region and the second high-concentration contact region is a universal contact region, in which a p region and an n region are disposed in mutual alternating contact along a surface of the semiconductor substrate.