Patent ID: 11937506
Assignee: LG INNOTEK CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 1:
2. A thermoelectric element comprising:
a first substrate;
a first electrode disposed on the first substrate;
a single semiconductor structure disposed on the first electrode;
a second electrode disposed on the single semiconductor structure, wherein an entirety of the single semiconductor structure is a single leg disposed between the first electrode and the second electrode;
a second substrate disposed on the second electrode; and
a terminal electrode disposed on the second substrate,
wherein the second substrate includes a first surface facing the second electrode, a second surface opposite to the first surface, a via electrode passing through the first surface and the second surface, and a through hole passing through the first surface and the second surface,
wherein the terminal electrode electrically contacts the second electrode through the via electrode,
wherein the second substrate includes a first region in which the terminal electrode and the via electrode are disposed, and a second region except for the first region,
wherein an area of the second region is greater than an area of the first region,
wherein the via electrode overlaps the first substrate, and does not overlap the single semiconductor structure in a thickness direction of the second substrate,
wherein a virtual plane of the via electrode is aligned with the via electrode in the thickness direction,
wherein the virtual plane of the via electrode and the single semiconductor structure are spaced apart from each other in a longitudinal direction of the second substrate, and the longitudinal direction is perpendicular to the thickness direction,
wherein a distance, in the longitudinal direction, between the virtual plane of the via electrode and the single semiconductor structure is greater than a width of the via electrode in the longitudinal direction,
wherein the distance, in the longitudinal direction, between the virtual plane of the via electrode and the single semiconductor structure is smaller than a width of the single semiconductor structure in the longitudinal direction, and
wherein the width of the via electrode in the longitudinal direction is less than the width of the single semiconductor structure in the longitudinal direction,
wherein the through hole extends in a first direction along the second surface of the second substrate and adjacent to a side surface of the terminal electrode on the second surface of the second substrate, and the through hole extends in the first direction along the first surface of the second substrate and adjacent to a side surface of the second electrode on the first surface of the second substrate,
wherein a ratio of a width of the through hole to a distance between the terminal electrode and the second electrode closest to the terminal electrode is 0.4:1 to 0.6:1.