Isolator

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, the second insulating portion contacting the second electrode;
• a first dielectric portion provided between the first insulating portion and the second insulating portion in the first direction, at least a portion of the first dielectric portion contacting the second electrode and being positioned around the second electrode along the first plane;
• and
• a conductive body including
• a first conductive portion provided around the first electrode along the first plane,
• a second conductive portion provided on the first conductive portion, and
• a third conductive portion provided on the second conductive portion and positioned around the second electrode along the first plane,
• a distance in the first direction between a lowermost end of the second electrode and a first interface between the first dielectric portion and the second insulating portion being less than a distance in the first direction between the first interface and an uppermost end of the second electrode,
• the first electrode having a first spiral configuration in a plane and the second electrode having a second spiral configuration in a plane,
• the first electrode including a first end and a second end being opposite to the first end,
• the second electrode including a third end and a fourth end being opposite to the third end,
• 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, and
• a second interface between the first insulating portion and the first dielectric portion being positioned higher than the lowermost end of the second electrode.

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, the second insulating portion contacting the second electrode;
• and
• a first dielectric portion provided between the first insulating portion and the second insulating portion in the first direction, at least a portion of the first dielectric portion contacting the second electrode and being positioned around the second electrode along the first plane,
• a distance in the first direction between a lowermost end of the second electrode and a first interface between the first dielectric portion and the second insulating portion being less than a distance in the first direction between the first interface and an uppermost end of the second electrode,
• the first electrode and the second electrode each having a configuration of a spiral in a plane,
• the configuration of the first electrode including a first end and a second end being opposite to the first end,
• the configuration of the second electrode including a third end and a fourth end being opposite to the third end,
• 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, and
• a second interface between the first insulating portion and the first dielectric portion being positioned higher than the lowermost end of the second electrode.