摘要:
The invention is directed to a dielectric member interposed between two electrical components which have different coefficients of thermal expansion (CTEs). The dielectric member has conductive traces for electrically connecting the electrical components. The traces may be joined by solder balls to a printed circuit board. The dielectric member may include reservoirs for locating the solder balls and receiving solder after reflow of the solder balls. Adhesive layers may be used for bonding the traces to the dielectric member. The dielectric member is made of a material having a selected CTE value which minimizes the CTE mismatch at the electrical interface and effectuates absorption of the thermal expansion and contraction of the system. Stresses induced by thermal expansion and contraction at the electrical interface are thereby reduced, preventing problems such as fractured solder joints.
摘要:
An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.
摘要:
An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.
摘要:
An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.
摘要:
A receptacle assembly includes a guide frame having a front end with an opening to an interior cavity of the guide frame. The front end is configured to receive a module assembly; and an EMI gasket is secured to an edge of the opening. The EMI gasket includes at least one conductive strap extending along a length of the edge, and the conductive strap covers a substantial majority of the edge to form a shielded EMI interface along the edge. A continuous conductive collar is provided on peripheral edges surrounding the opening. The collar is configured to form an uninterrupted and continuous EMI shielding interface with a gasket secured to a bezel. A bail ion the module may be used to cause actuators on the module to move and to press guide frame latches to a release position.
摘要:
A receptacle assembly includes a guide frame having a front end with an opening to an interior cavity of the guide frame. The opening is configured to receive a module assembly. The guide frame has a bottom with a bottom opening to the interior cavity, and the bottom is configured to be joined to a circuit board. An EMI gasket is provided along at least a portion of a perimeter of the bottom opening to be held between the guide frame and a circuit board. The EMI gasket forms a shielded interface along the portion of the perimeter of the bottom opening. Conductive straps are provided along the leading edge of the opening and have widths sufficient to cover a substantial majority of the leading edge to form a shielded interface along the leading edge. An EMI gasket including a skirt extending partially along a portion of the perimeter of the bottom opening is also provided.