Abstract:
Patch cords are provided that include a communications cable that has at least first through fourth conductors and a plug that is attached to the cable. The plug includes a housing that receives the cable, a printed circuit board, first through fourth plug contacts, and first through fourth conductive paths that connect the first through fourth conductors to the respective first through fourth plug contacts. The first and second conductors, conductive paths, and plug contacts form a first differential transmission line, and the third and fourth conductors, conductive paths, and plug contacts form a second differential transmission line. Each of the first through fourth plug contacts has a first segment that extends longitudinally along a first surface of the printed circuit board, and the signal current injection point into the first segment of at least some of the first through fourth plug contacts is into middle portions of their respective first segments.
Abstract:
Provided are: a circuit device which has improved connection reliability in a solder joint portion by suppressing the occurrence of sink of solder; and a method for manufacturing the circuit device. In a method for manufacturing a circuit device of the present invention, a plurality of solders (19), which are apart from each other, are firstly formed on the upper surface of a pad (18A), and a chip component (14B) and a transistor (14C) are affixed at the same time. After that, a solder paste (31) is supplied to the upper surface of the pad (18A) using a syringe (30), a heatsink (14D) is mounted on top of the solder paste (31), and melting is caused by a reflow process. There is little risk of sinking of the solders (19) in the present invention since the solders (19) are discretely arranged on the upper surface of the pad (18A).
Abstract:
Communications plugs are provided which include a printed circuit board having a plurality of elongated conductive traces and a plurality of plug blades. Each plug blade has a first section that extends along a top surface of the printed circuit board and a second section that extends along a front edge of the printed circuit board. Additionally, each plug blade may have a thickness that is at least twice the thickness of the elongated conductive traces. The plug blades may be low profile plug blades that are manufactured separately from the printed circuit board.
Abstract:
A semiconductor package includes a suspended substrate having one or more semiconductor devices thereon, a metallic case covering the suspended substrate, the suspended substrate being supported by a plurality of mechanical leads on opposing sides of the semiconductor package, at least one of the plurality of mechanical leads having a coefficient of thermal expansion (CTE) that substantially matches a CTE of the suspended substrate, where at least one of the plurality of mechanical leads is electrically connected to the suspended substrate, and where the plurality of mechanical leads absorb mechanical shocks so as to prevent damage to the semiconductor package. The semiconductor package also includes a thermal gel between the suspended substrate and the metallic case. The suspended substrate can be a printed circuit board. The metallic case includes mounting ears for transferring heat away from the semiconductor package.
Abstract:
The present invention relates to an electric and/or electronic circuit including a printed circuit board (20), at least one separate circuit board (10) and at least one power connector (12) for said printed circuit board (20). The at least one power connector (12) is connected or connectable to a corresponding counterpart. A number of electric and/or electronic components (22) is sold at the separate circuit board (10). The at least one separate circuit board (10) is connected to the printed circuit board (20) by a number of solder joints (16). The solder joints (16) are connected to the separate circuit board (10) by a through-hole-technology. The solder joints (16) are connected to the printed circuit board (20) by SMD (surface mount device) technology. At least one power connector (12) is fastened at the separate circuit board (10) by the through-hole-technology.
Abstract:
A device is described having a body and a connector assembly. The connector assembly is positioned at one end of the body and includes a set of contacts and a cover having a façade. The cover also has a set of openings to enable at least a portion of the set of contacts to be exposed on the façade. The cover is at least partially moveable inwards towards the set of contacts when force is applied to the façade.
Abstract:
A flexible printed circuit board having enhanced peeling force and a touch panel including the same are provided. The flexible printed circuit board (FPCB) includes a first bonding portion and a second bonding portion respectively bonded to a first circuit unit and a second circuit unit. The first bonding portion includes a pad corresponding portion corresponding to pads of the first circuit unit and dummy portions outwardly extending from both end portions of the pad corresponding portion. An FPCB wiring formation portion includes FPCB wirings respectively connected to the pads and extending from the first bonding portion to the second bonding portion and concave portions respectively disposed to be adjacent to the dummy portions and having a curved surface.
Abstract:
Printed circuit boards for communications connectors are provided that include a dielectric substrate formed of a first insulative material having a first dielectric constant. First and second pairs of input terminals and first and second pairs of output terminals are provided on the dielectric substrate. A first differential transmission line electrically connect the first pair of input terminals to the first pair of output terminals, and a second differential transmission line electrically connect the second pair of input terminals to the second pair of output terminals. The dielectric substrate includes an opening that is positioned between the conductive paths of the first differential transmission line, the opening containing a second insulative material having a second dielectric constant.
Abstract:
An electrical board-to-board connector including a flexible cable assembly having a low profile or dimensionally reduced configuration. The connector body of a cable assembly may be widened to provide the structural rigidity sufficient to support an array of solder lead connections. Other support elements may be omitted from the cable assembly, which results in a reduced height dimension. The flexible cable assembly may also include a cowling used to retain the cable assembly against a circuit board. The cowling may also be configured to reduce the dimensions or dimensional footprint of the connection.
Abstract:
Communications plugs are provided that include a housing that receives the conductors of the communication cable. A printed circuit board is mounted at least partially within the housing. A plurality of plug contacts are on the printed circuit board, and the printed circuit board includes a plurality of conductive paths that electrically connect respective ones of the conductors to respective ones of the plug contacts. First and second of the conductive paths are arranged as a first differential pair of conductive paths that comprise a portion of a first differential transmission line through the communications plug, where the first differential transmission line includes a first transition region where the impedance of the first differential transmission line changes by at least 20% and a second transition region impedance of the first differential transmission line changes by at least 20%.