Capacitor wire having porous structure in dielectric line and electronic device including the same
Disclosed are capacitor wires and electronic devices including the same. The capacitor wire comprises a core electrode line having a wire shape extending in a length direction, an outer electrode line that covers at least a portion of the core electrode line and extends in the length direction of the core electrode line, and a dielectric line between the core electrode line and the outer electrode line and extending in the length direction of the core electrode line. The dielectric line has a porous structure including a plurality of holes.
1 . A capacitor wire, comprising:
a core electrode line having a wire shape and extending in a length direction;
an outer electrode line that covers at least a portion of the core electrode line and extends in the length direction of the core electrode line; and
a dielectric line between the core electrode line and the outer electrode line, the dielectric line extending in the length direction of the core electrode line,
wherein the dielectric line has a porous structure including a plurality of holes,
wherein dielectric patterns fill the plurality of holes, and
wherein the dielectric patterns include a material different from a material of the dielectric line.
2 . The capacitor wire of claim 1 , wherein:
the dielectric line has a first surface adjacent to the outer electrode line and a second surface adjacent to the core electrode line, and
each of the plurality of holes extends into the dielectric line from the first surface toward the second surface.
3 . The capacitor wire of claim 1 , wherein
the dielectric line includes a first dielectric material, and
the dielectric patterns include a second dielectric material whose permittivity is greater than a permittivity of the first dielectric material.
4 . The capacitor wire of claim 1 , wherein the dielectric line includes aluminum oxide.
5 . The capacitor wire of claim 1 , wherein the outer electrode line fills at least a portion of the plurality of holes.
6 . The capacitor wire of claim 1 , wherein:
the dielectric line surrounds an outer surface of the core electrode line, and
the outer electrode line surrounds an outer surface of the dielectric line.
7 . The capacitor wire of claim 6 , wherein each of the plurality of holes extends into the dielectric line from the outer surface of the dielectric line.
8 . The capacitor wire of claim 1 , wherein:
the capacitor wire has a first end and a second end that are opposite to each other in the length direction of the core electrode line, and
at the first end of the capacitor wire, the outer electrode line exposes an end of at least one selected from the core electrode line and the dielectric line.
9 . The capacitor wire of claim 8 , wherein:
the outer electrode line has a thickness measured from the dielectric line in a direction orthogonal to the length direction, and
at the first end of the capacitor wire, a thickness of an end of the outer electrode line is greater than a thickness of another portion of the outer electrode line.
10 . The capacitor wire of claim 9 , wherein the outer electrode line includes a material whose melting point is less than a melting point of the core electrode line.
11 . The capacitor wire of claim 8 , further comprising an oxide layer,
wherein, at the first end of the capacitor wire, the oxide layer covers an end of the dielectric line and contacts an end of the outer electrode line in the length direction of the core electrode line.
12 . The capacitor wire of claim 11 , wherein the oxide layer and the outer electrode line include the same metal element.
13 . The capacitor wire of claim 8 , wherein, at the first end of the capacitor wire, an end of the core electrode line has a spherical shape.
14 . The capacitor wire of claim 8 , wherein, at the first end of the capacitor wire, the dielectric line extends onto and covers an end of the core electrode line up to an end surface of the core electrode line perpendicular to the length direction of the core electrode line.
15 . The capacitor wire of claim 1 , wherein the dielectric line includes a first dielectric line adjacent to the core electrode line and a second dielectric line adjacent to the outer electrode line,
wherein each of the first and second dielectric lines has the porous structure including the plurality of holes, and
wherein the capacitor wire further comprises an inner electrode line between the first dielectric line and the second dielectric line, the inner electrode line extending in the length direction of the core electrode line.
16 . A capacitor wire, comprising:
an innermost electrode line having a wire shape and extending in a length direction;
an outermost electrode line that surrounds at least a portion of the innermost electrode line and extends in the length direction of the innermost electrode line; and
a dielectric line between the innermost electrode line and the outermost electrode line, the dielectric line extending in the length direction of the innermost electrode line,
wherein the dielectric line has a porous structure including a plurality of holes, including boles separated from each other along a circumference of the dielectric line, when viewed from a direction parallel to a central axis of the innermost electrode line.
17 . The capacitor wire of claim 16 , wherein:
the dielectric line has a first surface adjacent to the outermost electrode line and a second surface adjacent to the innermost electrode line, and
each of the plurality of holes extends into the dielectric line from the first surface toward the second surface.
18 . The capacitor wire of claim 17 , further comprising:
dielectric patterns that fill the plurality of holes,
wherein the dielectric patterns include a material different from a material of the dielectric line.
19 . The capacitor wire of claim 16 , further comprising:
a middle electrode line between the innermost electrode line and outermost electrode line, wherein:
the innermost electrode line and outermost electrode line are electrically connected, and
the middle electrode line is electrically separated from the innermost electrode line and the outermost electrode line by the dielectric line.
20 . A capacitor wire, comprising:
a core electrode line having a wire shape and extending continuously to be elongated in a length direction to have a length along a central axis longer than a width perpendicular to the central axis;
an outer electrode line that covers at least a portion of the core electrode line and extends continuously to be elongated in the length direction of the core electrode line to have a length along the central axis longer than a width perpendicular to the central axis; and
a dielectric line between the core electrode line and the outer electrode line, the dielectric line extending continuously to be elongated in the length direction of the core electrode line to have a length along the central axis longer than a width perpendicular to the central axis,
wherein the dielectric line has a porous structure including a plurality of pores.