Patent ID: 7053463

Claim:
An integrated device comprising: a high-voltage resistor integrated in a semiconductor material body wherein said high-voltage resistor has a vertical current flow structure, wherein said high-voltage resistor is formed by a portion of said semiconductor material body extending between a first and a second surface of the semiconductor material body, and delimited at least partially by an insulation region extending from said first surface towards said second surface of said semiconductor material body, wherein the insulating region includes: insulating material that contacts the high-voltage resistor; first and second insulating walls extending into the semiconductor material body from the first surface toward the second surface; a first conductive filler that is laterally surrounded by the first and second insulating walls; third and fourth insulating walls extending into the semiconductor material body from the first surface toward the second surface; and a second conductive filler that is laterally surrounded by the third and fourth insulating walls; a first semiconductor region that is defined on a first side by the second insulating wall and on a second side by the third insulating wall, the first semiconductor region having a first conductivity type; and a second semiconductor region that is defined on a first side by the second insulating wall and on a second side by the third insulating wall; the second semiconductor region having a second conductivity type, being positioned below the first semiconductor region, and including the resistor.