Patent ID: 11876058
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. An isolator, comprising:
a first electrode;
a second electrode provided on the first electrode and separated from the first electrode;
a first pad provided on one end of the second electrode and electrically connected to the one end of the second electrode;
a second pad provided on other end of the second electrode and electrically connected to the other end of the second electrode;
a conductive body provided around the first and second electrodes along a first plane perpendicular to a first direction, the first direction being from the first electrode toward the second electrode, the conductive body including
a first conductive portion provided around the first electrode along the first plane,
a second conductive portion provided on a portion of the first conductive portion, and
a third conductive portion provided on the second conductive portion and provided around the second electrode along the first plane;

a first insulating region provided on the second electrode, the first insulating region including silicon, carbon, and nitrogen, and the first insulating region covering whole area of an upper surface of the second electrode except the one end and the other end of the second electrode; and
a fourth insulating region including silicon, carbon, and nitrogen, the fourth insulating region being provided around a bottom portion of the second conductive portion and contacting the second conductive portion.