Abstract:
A flexible circuit board and an electronic device including a flexible circuit board are provided. The flexible circuit board may include a substrate having a bending area and a non-bending area, a wiring pattern layer provided on the bending area and the non-bending area, a plating layer provided on the wiring pattern layer and including an open area in an area corresponding to the bending area, and a protective layer that directly contacts one surface of the wiring pattern layer exposed at the open area and a side surface of the plating layer. The protective layer may have a larger thickness than a thickness of the plating layer.
Abstract:
The present invention relates to a method of manufacturing a carrier tape, wherein a TAB tape including a base film having a central area and edge areas at both directions of the central area, a wiring pattern formed at the central area of the base film, a transfer area formed at the edge area of the base film and exposed by the base film, a plurality of sprocket holes arranged in a row on the transfer area and a metal pattern discretely formed from the wiring pattern, and formed at the edge areas of the base film, wherein the metal pattern is formed with a paired structure formed at both sides of the plurality of sprocket holes, such that the present invention has an advantageous effect in that no Cu layer or a metal layer exists at a portion of the sprocket holes from which friction is generated by a driving roller during assembly work between a drive IC and chips/drive IC and panel to dispense with generation of foreign objects such as Cu particles, thereby enhancing reliability of the product.
Abstract:
A flexible circuit board according to an embodiment of the present invention comprises: a substrate; a first wiring pattern layer disposed on a first surface of the substrate; a second wiring pattern layer disposed on a second surface opposite the first surface of the substrate; a first dummy pattern part disposed on the second surface of the substrate on which the second wiring pattern layer is not disposed; a first protection layer disposed on the first wiring pattern layer; and a second protection layer disposed on the second wiring pattern layer and the first dummy pattern part, wherein at least a part of the first dummy pattern part overlaps with the first wiring pattern layer in a vertical direction.
Abstract:
A flexible circuit board for a chip on film according to an embodiment includes: a substrate including a first surface and a second surface opposite to the first surface and including a chip mounting region; a circuit pattern layer disposed on the first surface; and a heat dissipation part disposed in the chip mounting region, wherein the substrate is formed with at least two or more holes that are formed in a region overlapping the heat dissipation part, and the heat dissipation part includes: a heat dissipation pattern layer disposed on the first surface; a connection layer disposed inside the hole; and a heat dissipation layer disposed on the second surface.
Abstract:
A flexible printed circuit board (FPCB), which is applied to various electronic display devices, may include a base, a first metal layer and a second metal layer on both surfaces of the base, a first plating layer on the first metal layer, a second plating layer on the second metal layer, and a first insulating pattern and a second insulating pattern respectively disposed on some region of the first plating layer and the second plating layer, wherein the first plating layer and the second plating layer may have different thicknesses.
Abstract:
A flexible printed circuit board (FPCB), which is applied to various electronic display devices, may include a base, a first metal layer and a second metal layer on both surfaces of the base, a first plating layer on the first metal layer, a second plating layer on the second metal layer, and a first insulating pattern and a second insulating pattern respectively disposed on some region of the first plating layer and the second plating layer, wherein the first plating layer and the second plating layer may have different thicknesses.
Abstract:
A flexible printed circuit board according to an embodiment includes: a substrate; and a circuit pattern disposed on the substrate, wherein the circuit pattern includes a plurality of first circuit patterns, a plurality of second circuit patterns, and a plurality of third circuit patterns, wherein the third circuit pattern includes a third-first pad portion, a third-second pad portion, and a third wiring portion connecting the third-first pad portion and the third-second pad portion, a plurality of fourth wiring portions are disposed between a plurality of third wiring portions, a line width of the third wiring portion is greater than a line width of the fourth wiring portion, and a distance between the third wiring portion and the fourth wiring portion adjacent to the third wiring portion is greater than a distance between the fourth wiring portions.
Abstract:
Provided is a tape for electronic devices with lead crack and a method of manufacturing the tape. According to the present invention, by forming a cutting portion on a narrow circuit pattern to be connected from an inner lead to an outer lead and further forming the cutting portion within a resin application portion, the problem of occurrence of cracks along a width of a narrow wiring can be avoided. The tape may include a first lead and a second lead formed on a dielectric substrate and a cutting portion formed on one of the first lead and the second lead wherein the cutting portion is formed within a resin application portion.
Abstract:
The present invention relates to a carrier tape for TAB-package and a manufacturing method thereof, wherein a TAB tape including a base film having a central area and edge areas at both directions of the central area, a wiring pattern formed at the central area of the base film, a transfer area formed at the edge area of the base film and exposed by the base film, a plurality of sprocket holes arranged in a row on the transfer area and a metal pattern discretely formed from the wiring pattern, and formed at the edge areas of the base film, wherein the metal pattern is formed with a paired structure formed at both sides of the plurality of sprocket holes, such that the present invention has an advantageous effect in that no Cu layer or a metal layer exists at a portion of the sprocket holes from which friction is generated by a driving roller during assembly work between a drive IC and chips/drive IC and panel to dispense with generation of foreign objects such as Cu particles, thereby enhancing reliability of the product.
Abstract:
A flexible circuit board and an electronic device including a flexible circuit board are provided. The flexible circuit board may include a substrate having a bending area and a non-bending area, a wiring pattern layer provided on the bending area and the non-bending area, a plating layer provided on the wiring pattern layer and including an open area in an area corresponding to the bending area, and a protective layer that directly contacts one surface of the wiring pattern layer exposed at the open area and a side surface of the plating layer. The protective layer may have a larger thickness than a thickness of the plating layer.