Patent ID: 11916027
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. An isolator, comprising:
a first electrode;
a first insulating portion provided on the first electrode;
a second electrode provided on the first insulating portion, the second electrode being electrically isolated from the first electrode and being apart from the first electrode in a first direction, the first direction being from the first electrode toward the second electrode;
a second insulating portion provided around the second electrode along a first plane perpendicular to the first direction; and
a first dielectric portion continuously provided between the first insulating portion and the second electrode and between the second insulating portion and the second electrode, the first dielectric portion directly contacting a lowermost end and a side surface of the second electrode,
the first electrode and the second electrode having configurations of spiral or flat plate,
the configuration of the first electrode including a first end and a second end furthest from the first end in a second direction,
the configuration of the second electrode including a third end and a fourth end furthest from the third end in the second direction,
a first distance between the first end and the second end in the second direction being longer than a first thickness of the first electrode in the first direction,
a second distance between the third end and the fourth end in the second direction being longer than a second thickness of the second electrode in the first direction and being the same as the first distance,
the second direction is perpendicular to the first direction,
a relative dielectric constant of the first dielectric portion being greater than a relative dielectric constant of the first insulating portion and greater than a relative dielectric constant of the second insulating portion.