Dual read-out SIMM socket for high electrical speed applications

摘要

A dual readout socket (10) for establishing electrical contact with electrically isolated traces on opposite surfaces of a single in-line memory module comprises an elongate insulating housing (12) having a longitudinal slot (14) for receiving the module, and slots (16) in which the signal terminals (13) and ground terminals (15) are retained. The terminals (13, 15) have contact springs (64) projecting into the module receiving slot (14) for contacting the traces of the module. The housing (12) has a central wall (28) which receives a ground plane (81). The signal terminals (13) are insulated from the ground plane (81) by the walls of the ground plane receiving slot (84) whereas these walls have openings (92) through which contact members (58) of the ground terminals (15) project, into electrical contact with the ground plane (81). The signal terminals (13) have leads (36a, 36b) and the ground plane (81) has leads (85). The leads of the signal terminals and of the ground plane, are inserted through holes (82) on a mother card substrate (80) and are connected to signal conductors and ground conductors, respectively, on the substrate (80).