Abstract:
A cable assembly including first and second header connectors. The first header connector has mating and loading sides and includes electrical contacts. The mating side is configured to mate with a first module connector. The second header connector has mating and loading sides and includes electrical contacts. The mating side of the second header connector is configured to mate with a second module connector. The cable assembly also has a cable bundle including communication cables that extend between the loading sides of the first and second header connectors and that connect the electrical contacts of the first and second header connectors. The cables are substantially twist-free between the first and second header connectors when the first and second header connectors face in substantially opposite directions and the first and second module connectors have an orthogonal relationship.
Abstract:
Methods and apparatus are provided for securely and cost effectively attaching one or more shielded cables to a planar substrate. A cable assembly includes a printed circuit board (PCB) coupled to a distal end of the one or more shielded cables. Perpendicular alignment of the distal cable ends promotes a dense array that is achieved using angular mounting brackets for coupling cable shields to electrical contacts on an engagement surface of the PCB. Mounting brackets are attached between the cable shield and shield contacts using electrically conductive attachment techniques including soldering and laser welding. The PCB also includes one or more signal contacts for each cable. Distal ends of the internal conductors are each bent about 90 degrees from the vertical cable axis to align with the horizontal engagement surface. Internal conductors are surface mounted to their respective signal contact using one or more of soldering and laser welding.
Abstract:
In one implementation, a method of testing multiple DUTs using a single tester channel is provided which includes providing an input signal with the single tester channel simultaneously to each of the DUTs. The method further includes providing a clock signal to each of the DUTs. The clock signal provided to each of the DUTs may be successively delayed clock signals, which are provided to successive DUTs. The method includes using the clock signal to cause a next DUTs to provide an output transition before an output of a prior DUT is returned to a pre-transition state. The method further includes detecting with the single tester channel the output transition of each of the DUTs in response to the input signal and the clock signal.
Abstract:
In one embodiment, a via structure for a printed circuit board is provided which includes a signal via and an elongated signal conductor strip electrically connected to the signal via. The elongated signal conductor strip is adjacent to a ground conductor and extends from the conductive pad substantially to the ground conductor. The elongated signal conductor strip includes a portion extending laterally outward, which may be configured to have a capacitance so as to establish an impedance for the via structure.
Abstract:
An electrical cable includes a central wire extending a length between opposite ends. The central wire has a periphery. Force wires have winding turns that are wrapped around the periphery of the central wire along the length of the central wire. The force wires include force conductors surrounded by force insulators. Return wires have winding turns that are wrapped around the periphery of the central wire along the length of the central wire. The return wires include return conductors surrounded by return insulators. The winding turns of the return wires are interleaved between the winding turns of adjacent force wires such that the adjacent force wires are separated by at least one return wire.
Abstract:
In one embodiment, a compliant contactor is provided which includes a center conductor and an outer conductor with a spacer therebetween. The outer conductor has a mating end adapted to be capable of flexibly contacting an outer conductor mating surface prior to the center conductor contacting a center conductor mating surface.
Abstract:
In one embodiment, a via structure for a printed circuit board is provided which includes a signal via and an elongated signal conductor strip electrically connected to the signal via. The elongated signal conductor strip is adjacent to a ground conductor and extends from the conductive pad substantially to the ground conductor. The elongated signal conductor strip includes a portion extending laterally outward, which may be configured to have a capacitance so as to establish an impedance for the via structure.
Abstract:
In one embodiment, a laminated printed circuit board translator is provided. In some embodiments, the translator includes a receiving board adapted to receive a pin, the receiving board includes a plated via extending through the receiving board and has a hole for receiving a pin. An interface board laminated with the receiving board has a controlled depth via extending through it to contact a conductive trace. The conductive trace extends between the receiving board and the interface board to connect the plated via of the receiving board with the controlled depth via of the interface board. The controlled depth via is configured so that it is capable of being plated through a single sided drilled opening in the interface board. Some embodiments have a pad on the interface board connected to the controlled depth via.
Abstract:
An electrical connector including a dielectric body and electrical contacts held by the dielectric body. The electrical contacts have a pair of signal contacts with respective mating ends configured to engage a communication connector and also with respective wire-terminating ends. The wire-terminating ends are located proximate to each other in a cable-termination region and are configured to mechanically and electrically couple to corresponding signal conductors of a cable. The electrical connector also includes a ground shield having a cover extension that extends over the cable-termination region. The cover extension is configured to shield the cable-termination region.
Abstract:
An electrical connector including a dielectric body and electrical contacts held by the dielectric body. The electrical contacts have a pair of signal contacts with respective mating ends configured to engage a communication connector and also with respective wire-terminating ends. The wire-terminating ends are located proximate to each other in a cable-termination region and are configured to mechanically and electrically couple to corresponding signal conductors of a cable. The electrical connector also includes a ground shield having a cover extension that extends over the cable-termination region. The cover extension is configured to shield the cable-termination region.