Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Ryohei Nega

Yoshihiko Fuji

Tatsuya Ohguro

Takanobu Kamakura

Akira Ishiguro

An isolator includes a substrate; a first planar coil provided above the substrate and along a surface of the substrate; a first insulating portion on the first planar coil; a second planar coil on the first insulating portion; and a metal layer above the first insulating portion. The first planar coil, the second planar coil, and the metal layer are arranged in a first direction perpendicular to the surface of the substrate. The first planar coil and the second planar coil each having a center and an outer perimeter in a second direction along the surface of the substrate. A distance in the second direction from the center of the first planar coil to the outer perimeter of the first planar coil is less than a distance in the second direction from the center of the second planar coil to the outer perimeter of the second planar coil.

Isolator

According to one embodiment, an isolator includes first and second electrodes, first and second insulating portions, and a first dielectric portion. The first insulating portion is provided on the first electrode. The second electrode is provided on the first insulating portion. The second insulating portion is provided around the second electrode along a first plane perpendicular to a first direction. The second insulating portion contacts the second electrode. The first dielectric portion is provided between the first and second insulating portions. At least a portion of the first dielectric portion contacts the second electrode and is positioned around the second electrode along the first plane. A distance between a lower end of the second electrode and a first interface between the first dielectric portion and the second insulating portion is less than a distance between the first interface and an upper end of the second electrode.

An isolator includes a first electrode; a first insulating portion on the first electrode; a second electrode on the first insulating portion; a second insulating portion around the second electrode; and a first dielectric portion on the second electrode and the second insulating portion. The second insulating portion is provided along a first plane perpendicular to a first direction from the first electrode toward the second electrode. The second electrode including a bottom surface facing the first insulating portion, an upper surface facing the first dielectric portion, a first side surface connected to the bottom surface, and a second side surface connected to the upper surface and the first side surface. The upper surface is wider than the bottom surface in a second direction along the first plane. The first side surface is tilted with respect to the bottom surface and the second side surface.

Growing community of inventors

Yokohama Kanagawa, Japan

Ryohei Nega