Electrically conductive contact pin and manufacturing method therefor

An electrically conductive contact pin, comprising:

• a plurality of horizontal metal layers stacked in a thickness direction of the electrically conductive contact pin;
• a first vertical metal layer provided at a first end portion forming a front surface of the electrically conductive contact pin, the first vertical metal layer being continuously formed from a lower surface to an upper surface in the thickness direction of the electrically conductive contact pin and being located at a center portion of the first end portion in a width direction of the electrically conductive contact pin such that the plurality of horizontal metal layers are positioned at both side surfaces thereof;
• and
• a second vertical metal layer provided at a second end portion forming a rear surface of the electrically conductive contact pin, the second vertical metal layer being continuously formed from a lower surface to an upper surface in the thickness direction of the electrically conductive contact pin and being located at a center portion of the second end portion in the width direction of the electrically conductive contact pin such that the plurality of horizontal metal layers are positioned at both side surfaces thereof,
• wherein the first vertical metal layer comprises a first outer extension portion formed to extend, from the first end portion, along a length direction of the electrically conductive contact pin in an outward direction of the electrically conductive contact pin such that the first outer extension portion protrudes outward from the first end portion, and
• wherein the second vertical metal layer comprises a second outer extension portion formed to extend, from the second end portion, along the length direction of the electrically conductive contact pin in the outward direction of the electrically conductive contact pin such that the second outer extension portion protrudes outward from the second end portion,
• wherein a body portion provided between the first end portion and the second end portion does not include the first vertical metal layer and the second vertical metal layer and is composed only of the plurality of horizontal metal layers.

An electrically conductive contact pin, comprising:

• a plurality of horizontal metal layers stacked in a thickness direction of the electrically conductive contact pin;
• a center vertical metal layer provided at a first end portion forming a front surface of the electrically conductive contact pin, the center vertical metal layer being continuously formed from a lower surface to an upper surface in the thickness direction of the electrically conductive contact pin and being located at a center portion of the first end portion in a width direction of the electrically conductive contact pin such that the plurality of horizontal metal layers are positioned at both side surfaces thereof;
• and
• side vertical metal layers provided at the first end portion, the side vertical metal layers being continuously formed from a lower surface to an upper surface in the thickness direction of the electrically conductive contact pin and being located at opposite side portions of the first end portion in the width direction of the electrically conductive contact pin such that the side vertical metal layers are positioned outside the plurality of horizontal metal layers,
• wherein a second end portion forming a rear surface of the electrically conductive contact pin and a body portion provided between the first end portion and the second end portion do not include the center vertical metal layer and the side vertical metal layers and are composed only of the plurality of horizontal metal layers.