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:
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:
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.
Abstract:
A stacked flexible printed circuit board assembly with a side connection section is provided, including a first flexible printed circuit board, a second flexible printed circuit board, and a curved connection section. The curved connection section is integrally connected to and between side edges of the first flexible printed circuit board and the second flexible printed circuit board. The first flexible printed circuit board is folded in a direction toward and thus stacked on the second flexible printed circuit board such that a plurality of first contact pads of the first flexible printed circuit board correspond respectively to a plurality of second contact pads of the second flexible printed circuit board. A height adjustment layer or an adhesive layer is provided between the first flexible printed circuit board and the second flexible printed circuit board to suit the need of thickness in plugging or soldering.
Abstract:
Disclosed is a penetration and assembly structure for a flexible circuit board with a hinge assembly. With a pre-folding line formed on a pre-prepared flexible circuit board serving as a center line, a connection section of the flexible circuit board is folded to a terminal distribution section, and then, the connection section and an extended sheet are wound up in a direction towards the terminal distribution section to form the connection section into a rolled body with the extended sheet wrapped around the rolled body to provide an effect of protection. The rolled body is then inserted through a bore of a hinge assembly so that after the rolled body completely passes through the bore of the hinge assembly, the extension section of the flexible circuit board is located in the bore of the hinge assembly and the first end and the second end are respectively set at opposite ends of the bore of the hinge assembly. In other applications, a reinforcement plate is included to reinforce the terminal distribution section of the flexible circuit board.
Abstract:
Disclosed is an attenuation reduction structure for high-frequency connection pads of a circuit board with an insertion component. The circuit board includes at least one pair of differential mode signal lines formed thereon. A substrate has upper and lower surfaces respectively provided with at least one pair of upper connection pads and lower connection pads. A first metal layer is formed on the lower surface of the substrate. The first metal layer includes an attenuation reduction grounding pattern structure. The attenuation reduction grounding pattern structure includes a hollow area and at least one protruded portion. The protruded portion extends from the first metal layer in a direction toward the lower connection pads.
Abstract:
An attenuation reduction structure of a circuit board includes an expanded thickness formed between high frequency signal contact pads and a grounding layer of the circuit board. The expanded thickness is greater than a reference thickness between the grounding layer and high frequency signal lines. The circuit board is made of polyethylene terephthalate (PET) or polyimide (PI). Alternatively, a rigid board including resin and fibrous material or a rigid-flex board is used. The circuit board can be a single-layer circuit board or a multi-layer board formed by combining at least two single-layer circuit boards. A thickness-expanding pad is mounted between the high frequency signal contact pads and the grounding layer or the thickness of a portion of a bonding layer of the circuit board is increased to provide an expanded thickness.