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US 12,586,945 B2Granted
Elastic electric contact terminal
AssigneeJoinset Co., Ltd.
InventorsSun-Ki Kim, Byung-Joo Park, Jin-San Kim, Hyoung-Kyu Kim
Life of this patent
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Abstract
Disclosed is an elastic electric contact terminal that does not give an effect on a metal layer even when a core is pressed by external force. The elastic electric contact terminal includes an elastic core, a heat-resistant polymer film that surrounds the core and is attached to top and bottom surfaces of the core with an adhesive layer therebetween, and a metal layer disposed on an outer surface of the polymer film. At least one sidewall of the core is pressed inward to form a folded portion, and a space is defined between an inner surface of the polymer film and the sidewall of the core by the folded portion.
Claims13
An elastic electric contact terminal comprising:
- an elastic core having a generally hourglass-shaped vertical cross-section;
- a heat-resistant polymer film surrounding the elastic core with an elastic adhesive layer applied under the heat-resistant polymer layer, wherein the heat-resistant polymer film is attached to top and bottom surfaces of the elastic core with the elastic adhesive layer adhered therebetween;
- and
- a metal layer disposed on an outer surface of the polymer film,
- wherein a through-hole that passes in the longitudinal direction is defined in the elastic core, and a surface for vacuum-pick up is provided on top surface of the electric contact terminal,
- wherein the elastic electric contact terminal defines a vacant space between a generally flat inner wall surface of the adhesive layer adhered polymer film and each sidewall of the elastic core, wherein each vacant space has a generally flat cross-sectional line segment defined by the generally flat inner wall surface of the adhesive layer adhered polymer film, and a generally valley-shaped cross-sectional line segment defining a folded portion at a deepest region of the hourglass-shaped elastic core, when the top surface of the elastic electric contact terminal is not pressed downward from above.
3 more elements
An elastic electric contact terminal comprising:
- an elastic core;
- a heat-resistant polymer film surrounding the elastic core with an elastic adhesive layer applied under the heat-resistant polymer layer, wherein the heat-resistant polymer film is attached to top and bottom surfaces of the elastic core with the elastic adhesive layer adhered therebetween;
- and
- a metal layer disposed on an outer surface of the polymer film,
- wherein the elastic core has a sigma (Σ) shaped vertical cross-section,
- wherein a surface for vacuum-pick up is provided on the top surface of the electric contact terminal,
- wherein a folded portion is disposed on a sidewall of the elastic core between the top and bottom surfaces of the elastic core by the shape of the vertical cross-section, and
- wherein a vacant space is defined between an inner surface of the polymer film and the sidewall of the elastic core by the folded portion, and reflow soldering caused is performed by surface mounting.
5 more elements
An elastic electric contact terminal comprising:
- an elastic core;
- a heat-resistant polymer film surrounding the elastic core with an elastic adhesive layer applied under the heat-resistant polymer layer, wherein the heat-resistant polymer film is attached to top and bottom surfaces of the elastic core with the elastic adhesive layer adhered therebetween;
- and
- a metal layer disposed on an outer surface of the polymer film,
- wherein the elastic core has a Z-shaped vertical cross-section,
- wherein a surface for vacuum-pick up is provided on the top surface of the electric contact terminal,
- wherein the elastic electric contact terminal defines a vacant space between a generally flat inner wall surface of the adhesive layer adhered polymer film and a sidewall of the elastic core, wherein each vacant space has a generally flat cross-sectional line segment defined by the generally flat inner wall surface of the adhesive layer adhered polymer film, and a generally angular cross-sectional line segment defining a folded portion by the shape of the Z-shaped vertical cross-section of the elastic core, when the top surface of the elastic electric contact terminal is not pressed downward from above.
4 more elements
An elastic electric contact terminal comprising:
- an elastic core having a vertical cross-sectional shape defined by two isosceles triangles joined at their apices, the elastic core including a through-hole extending longitudinally through each of the isosceles triangles;
- a heat-resistant polymer film surrounding the elastic core with an elastic adhesive layer applied under the heat-resistant polymer layer, wherein the heat-resistant polymer film is attached to top and bottom surfaces of the elastic core with the elastic adhesive layer adhered therebetween;
- and
- a metal layer disposed on an outer surface of the polymer film,
- wherein a surface for vacuum-pick up is provided on top surface of the electric contact terminal,
- wherein the elastic electric contact terminal defines a vacant space between a generally flat inner wall surface of the adhesive layer adhered polymer film and a sidewall of the elastic core, wherein each vacant space has a generally flat cross-sectional line segment defined by the generally flat inner wall surface of the adhesive layer adhered polymer film, and a generally angular cross-sectional line segment defining a folded portion at a deepest region of the elastic core, when the top surface of the elastic electric contact terminal is not pressed downward from above.
3 more elements
Dependencies are inferred from the claim text.