Contact structure for high speed transmission connector
 A contact (16) of an electrical connector (10) includes a base (18) fixed in a corresponding slot (14) defined in a housing (12) of the connector and a spring beam (22) extending from the base for resiliently engaging with a circuit board inserted into the connector. The contact is made from a thin metal sheet by blanking. The spring beam of the contact has a cross-sectional area determined by first and second dimensions thereof. The second dimension corresponds to the thickness (T) of the metal sheet and the first dimension (W) is parallel to the surface of the metal sheet and thus is allowed to increase as desired in the blanking process. The increase of the first dimension increases the cross-sectional area thereby reducing the inductance of the spring beam. The spring contact is then twisted to switch the first and second dimensions thereof whereby bending rigidity of the beam is substantially reduced leading to a reduction of the normal force acting upon the spring beam when the circuit board is inserted into the connector. Thus, the mating force for connecting the circuit board is reduced, while the inductance is kept low. Electrical and mechanical requirements for a high transmission speed connector are thus met simultaneously. 
Hon Hai Precision Ind. Co., Ltd.
H H H
H01R H01R H01R
inventional additional additional
Chih-Hsien
Chou