Abstract:
A signal attenuation reduction structure for a flexible circuit board includes at least one conductive paste coating zone formed on surfaces of signal lines and an insulation layer formed on a dielectric layer of the flexible circuit board such that the conductive paste coating zone corresponds to at least one signal line or covers a plurality of signal lines. An anisotropic conductive film is formed on surfaces of the insulation layer and the conductive paste coating zone of the flexible circuit board. The anisotropic conductive film is pressed to bond between the conductive paste coating zone and a shielding layer such that the conductive paste coating zone and the shielding layer achieve electrical connection therebetween in a vertical direction through the anisotropic conductive film.
Abstract:
A signal attenuation reduction structure for a flexible circuit board includes a conductive paste coating zones formed on surfaces of high-frequency signal lines and an insulation layer formed on a dielectric layer of the flexible circuit board such that the conductive paste coating zone corresponds to a pair of high-frequency signal lines or covers a plurality of pairs of the high-frequency signal lines. An anisotropic conductive film is formed on surfaces of the insulation layer and the conductive paste coating zone of the flexible circuit board. The anisotropic conductive film is pressed to bond between the conductive paste coating zone and a shielding layer such that the conductive paste coating zone and the shielding layer achieve electrical connection therebetween in a vertical direction through the anisotropic conductive film.
Abstract:
An interconnecting conduction structure for electrically connecting conductive traces of a lapped flexible circuit board is disclosed. The lapped flexible circuit board includes a first flexible circuit board and a second flexible circuit board. A through hole is formed in the second flexible circuit board and an interconnecting conduction member is filled in the through hole of the second flexible circuit board. The interconnecting conduction member is electrically connected to a second solder pad of the second flexible circuit board and a first solder pad of the first flexible circuit board in order to formed a lapped connection between conductive traces of the first flexible circuit board and the second flexible circuit board.
Abstract:
A conductive connection structure for a conductive wiring layer of a flexible circuit board includes a first through hole and a second through hole formed in a lamination structure including a conductive wiring layer, a first covering layer, and a second covering layer. The first through hole extends through the first covering layer and the conductive wiring layer. The second through hole extends through the second covering layer. The second through hole is formed at a location corresponding to an exposed zone on a second surface of the conductive wiring layer and communicates with the first through hole. A first conductive paste layer is formed on a surface of the first covering layer and fills in the first through hole to form a pillar portion in the first through hole. The pillar portion has a bottom end forming a curved cap. The exposed zone of the second surface of the conductive wiring layer is at least partially covered by the curved cap.
Abstract:
A differential mode signal transmission module includes a first section having an external connection end on which at least a pair of differential mode signal transmission terminals are formed and includes a grounding terminal, a first differential mode signal terminal, and a second differential mode signal terminal. The extension connection end of the first section forms a counterpart signal terminals corresponding to those of the external connection end. At least one first conductive connection line is formed on the first section. The conductive connection line connects the grounding terminal of the external connection end of the first section to a collective grounding point. The extension connection end of the first section is connected to an extension section. The extension section is further connected to a second section opposite to the first section. The extension section includes at least one slit line in order to form a bundled section. The first section, the second section, and the extension section include at least one fold line.
Abstract:
Disclosed are a method and a structure of penetration and combination for a flexible circuit board with a hinge assembly. A pre-formed flexible circuit board is processed by taking a pre-folding line as a center line to fold a connection section of the flexible circuit board toward the terminal distribution section. Then, the connection section is rolled in a direction toward the terminal distribution section so as to make the connection section forming a rolled body. The rolled body is then put through the bore of the hinge assembly to have the rolled body completely extend through the bore of the hinge assembly so that the extension section of the flexible circuit board is positioned in the bore of the hinge assembly and the first end and the second end are respectively located at opposite sides of the bore of the hinge assembly.
Abstract:
Disclosed is a tear protection structure for a flexible circuit board. In an extension section of a flexible circuit board, at least a slit line is formed. The slit line has at least a terminal end from which a stress-diverting cut segment extends. The stress-diverting cut segment is formed by cutting in a cutting direction that defines an angle with respect to an extension direction of the extension section to serve as the tear protection structure of the flexible circuit board. The extension section of the flexible circuit board is foldable along the slit line. The stress-diverting cut segment may further include a tear protection hole formed in a termination end thereof.
Abstract:
A power supply path structure is provided for a flexible circuit board and includes a first flexible circuit board that includes at least one first connection pad and a first opposite connection pad and a first power supply path connected between the first connection pad and the first opposite connection pad and a second flexible circuit board that includes at least one second connection pad and a second opposite connection pad and a second power supply path connected between the second connection pad and the second opposite connection pad. The first flexible circuit board is stacked, in a vertical direction, on the second flexible circuit board in such a way that the first power supply path and the second power supply path form a parallel-connected power supply path that serves as a power path or a grounding path for the first flexible circuit board.
Abstract:
A structure of via hole of electrical circuit board includes an adhesive layer and a conductor layer that are formed after wiring is formed on a carrier board. At least one through hole extends in a vertical direction through the carrier board, the wiring, the adhesive layer, and the conductor layer and forms a hole wall surface. The conductor layer shows a height difference with respect to an exposed zone of the circuit trace in the vertical direction. A conductive cover section covers the conductor layer and the hole wall surface of the through hole. The carrier board is a single-sided board, a double-sided board, a multi-layered board, or a combination thereof, and the single-sided board, the double-sided board, and multi-layered board can be flexible boards, rigid boards, or composite boards combining flexible and rigid boards.
Abstract:
An attenuation reduction control structure for high-frequency signal transmission lines of a flexible circuit board includes an impedance control layer formed on a surface of a substrate. The impedance control layer includes an attenuation reduction pattern that is arranged in an extension direction of the high-frequency signal transmission lines of the substrate and corresponds to bottom angle structures of the high-frequency signal transmission lines in order to improve attenuation of a high-frequency signal transmitted through the high-frequency signal transmission lines. An opposite surface of the substrate includes a conductive shielding layer formed thereon. The conductive shielding layer is formed with an attenuation reduction pattern corresponding to top angle structures of the high-frequency signal transmission lines.