Abstract:
A foldable signal transmission cable assembly includes parallelly extended first and second cables, which are connected at opposite first and second ends by transverse first and second connecting sections, respectively, and have first and second connectors provided at the first end of the first cable and at the second end of the first or the second cable, respectively, to electrically connect to signal lines provided on the first and second cables and the first and second connecting sections. The first and second connecting sections may be bent along folding lines provided at middle points thereof, so as to turn and locate the second cable below the first cable. The first and second cables may be formed from a single-side, a double-side, a multisided, or a multilayer substrate, and may include a cluster section.
Abstract:
A planar type flexible cable includes a longitudinally extended insulated section, and at least one pair of differential-mode signal transmission lines horizontally closely spaced inside the insulated section in a transverse direction, and extended in an extending direction of the insulated section from a first to a second end of the insulated section. A flat layer of shielding structure is provided on at least one surface of the insulated section to provide an impedance value needed by the differential-mode signal transmission lines. The flat layer of shielding structure includes a net-type shielding structure with a plurality of openings. A plurality of the insulated sections is vertically stacked with each insulated section having at least one pair of the differential-mode signal transmission lines provided therein and a flat layer of shielding structure provided on one surface thereof.
Abstract:
A flexible circuit board with specific shielding planes is used for low voltage differential transmission mode circuits. Both the impedance and the transmission time for the transmission line in the circuit board are controlled by shielding planes with varied void opening patterns. Capacitance and slow wave effects related to the combination of void opening patterns and the location configuration related to locations of void opening patterns are used to improve the impedance and transmission timing for the transmission line in the circuit board.
Abstract:
A composite flexible circuit planar cable includes a flat cable, a first section, and a second section. The flat cable includes a plurality of straight line like parallel and non-jumping conductor lines. At least one jumping line is formed on the first section to interchangeably connect a selected conductive line of the first section to an another selected conductive line. The second section may also form at least one jumping line to interchangeably connect a selected conductive line of the second section to an another selected conductive line. Through such a jumping line, electrical connection can be formed between signal terminals and corresponding and interchanged signal terminals. The plurality of conductor lines of the flat cable includes at least a pair of differential signal conductor lines, a grounding line, and a power line.
Abstract:
A bundled flexible circuit cable with water resistant structure is provided, in which a flexible substrate forms a cluster section having a lap section. In the lap section, a plurality of flat cable components that collectively form the cluster section is arranged to stack by substantially paralleling each other and corresponding up and down and is bonded and positioned by being applied with an adhesive material. The flat cable components are enclosed by a water resistant component at the lap section, whereby water, liquids, and contaminants are prevented from moving through gaps present in the bundled flexible substrate to get into the enclosure of an electronic device so as to realize protection against water, humidity, and dust. A tubular member or a wrapping member is further provided to fit over a section of the cluster section other than the lap section in order to facilitate extension through a holed mechanism device, such as a hinge, and to improve resistance against flexing and bending. The adhesive material can be a material containing conductive particles therein. Further, the substrate of the flexible circuit cable can be of such a design that a shielding layer is included and in electrical connection with a grounding line, whereby the shielding layer enclosing each of the lapped flat cable components in the water resistant structure is electrically connected to the water resistant component containing a conductive substance or the device enclosure to realize protection against electromagnetic interference.
Abstract:
Disclosed is a structure for precision control of electrical impedance of signal transmission circuit board. A substrate forms thereon a plurality of first signal transmission lines, and a first covering insulation layer is formed on a first surface of the substrate to cover a surface of each first signal transmission lines and each spacing section formed between adjacent first signal transmission lines. Each first signal transmission lines can transmit a differential mode signal or a common mode signal. At least one first flattening insulation layer is formed between a surface of the first covering insulation layer and a first conductive shielding layer so that the first flattening insulation layer fills up the height difference between the surface of each first signal transmission line and the spacing section associated with each first signal transmission line to thereby ensure a consistent distance between the signal transmission lines and the conductive shielding layer for realizing precision control of electrical impedance of the signal transmission circuit board.
Abstract:
A bundled flexible flat circuit cable includes a flexible substrate that forms at least one cluster section having an end forming at least one first connection section and an opposite end forming at least one second connection section. Both the first and second connection sections or one of the first and second connection sections form a stack structure. The flexible substrate can be of a structure of single-sided or double-sided substrate and may additionally include an electromagnetic shielding layer. A bundling structure is provided to bundle the cluster section at a predetermined location to form a bundled structure. The bundling structure can be made of a shielding material, an insulation material, or a combination of shielding material and insulation material.
Abstract:
Disclosed is a structure of electromagnetic wave resistant connector for flexible flat cable. A flexible flat cable defines an insertion device mounting section to which an insertion device is mounted. The insertion device includes a metal member that is at least partly formed of a metal material. The flexible flat cable forms thereon conductive traces on which an insulation layer is provided. The insulation layer has a surface, which forms, in at least a portion thereof, a conductive shielding layer. The conductive shielding layer extends to the insertion device mounting section, so that when the insertion device is mounted to the insertion device mounting section, electrical connection is formed between the metal member of the insertion device and the conductive shielding layer.
Abstract:
Disclosed is a structure for precision control of electrical impedance of signal transmission circuit board. A substrate forms thereon a plurality of first signal transmission lines, and a first covering insulation layer is formed on a first surface of the substrate to cover a surface of each first signal transmission lines and each spacing section formed between adjacent first signal transmission lines. Each first signal transmission lines can transmit a differential mode signal or a common mode signal. At least one first flattening insulation layer is formed between a surface of the first covering insulation layer and a first conductive shielding layer so that the first flattening insulation layer fills up the height difference between the surface of each first signal transmission line and the spacing section associated with each first signal transmission line to thereby ensure a consistent distance between the signal transmission lines and the conductive shielding layer for realizing precision control of electrical impedance of the signal transmission circuit board.
Abstract:
A bundled flexible circuit cable with water resistant structure is provided, in which a flexible substrate forms a cluster section having a lap section. In the lap section, a plurality of flat cable components that collectively form the cluster section is arranged to stack by substantially paralleling each other and corresponding up and down and is bonded and positioned by being applied with an adhesive material. The flat cable components are enclosed by a water resistant component at the lap section, whereby water, liquids, and contaminants are prevented from moving through gaps present in the bundled flexible substrate to get into the enclosure of an electronic device so as to realize protection against water, humidity, and dust. A tubular member or a wrapping member is further provided to fit over a section of the cluster section other than the lap section in order to facilitate extension through a holed mechanism device, such as a hinge, and to improve resistance against flexing and bending. The adhesive material can be a material containing conductive particles therein. Further, the substrate of the flexible circuit cable can be of such a design that a shielding layer is included and in electrical connection with a grounding line, whereby the shielding layer enclosing each of the lapped flat cable components in the water resistant structure is electrically connected to the water resistant component containing a conductive substance or the device enclosure to realize protection against electromagnetic interference.