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US 5,690,281 AGranted
Socket apparatus
AssigneeTexas Instruments Incorporated
InventorsKiyokazu Ikeya, Kiyoshi Adachi, Masao Tohyama, Tomohiro Nakano
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AssigneeTexas Instruments Incorporated
InventorsKiyokazu Ikeya, Kiyoshi Adachi, Masao Tohyama, Tomohiro Nakano
Estimating the term…
A socket having a structure which is suitable for electrical connection with ball-shaped lead terminals of an IC package is shown. When a cover (12) is pushed down, a latch (70) moves away, a slide plate (40) slides toward the positive side in an X direction through levers (52) and (50) and movable shaft (58) and both arms of each contact maker (30) open. Each lead terminal (solder ball) (32a) of the BGA package (32) is freely inserted between both arms of a respective contact maker (30) when in the open state. When cover (12) rises to its highest position, slide plate (40) slides in the reverse direction by the spring force of a compression coil spring, thereby returning to the its original position and both arms of each contact (32) engage each lead terminal (32a) in such a way as to hold it from opposite sides with a result that an electrical connection based on compressive engagement is obtained between each contact element (30) and each respective terminal (32a).
Socket apparatus for removably mounting an electric part with a plurality of ball-shaped lead terminals arranged in a selected pattern on said electrical part comprising a base, a plurality of elongated contact elements each having a longitudinal axis mounted in the base with the longitudinal axis extending generally parallel to a Z axis in a pattern extending in X-Y directions perpendicular to the Z axis and to each other corresponding to the selected pattern, each contact element having first and second flexible contact arms movable between open and closed positions, a slide plate having top and bottom generally planar surfaces mounted on the base to slide in an X direction, the slide plate having a plurality of apertures extending through the slide plate between the top and bottom surfaces and arranged in a pattern corresponding to the selected pattern, the first and second contact arms of each contact member received in a respective aperture with one of the first and second contact arms being interconnected with the slide plate to move therewith in the X direction, the socket having an electric part receiving seat with the lead terminals of an electric part disposed in the seat received in respective apertures between respective first and second contact arms and means to move the slide plate between an open contact arms position when the electric part can be inserted into and removed from the seat and a closed contact arms position when the terminal leads of the electric part are engaged by respective first and second contact arms.
Socket apparatus for removably mounting an electric part with a plurality of ball-shaped lead terminals arranged in a selected pattern from said electric part comprising a base, a plurality of elongated contact elements each having a longitudinal axis mounted in the base with the longitudinal axis extending generally parallel to a Z axis in a pattern extending in X-Y directions perpendicular to the Z axis and to each other corresponding to the selected pattern, each contact element having a flexible contact arm movable between first and second positions, a slide plate having top and bottom generally planar surfaces mounted on the base to slide in an X direction, the slide plate having a plurality of apertures extending through the slide plate between the top and bottom surfaces and arranged in a pattern corresponding to the selected pattern, the contact arm of each contact member received in a respective aperture interconnected with the slide plate to move therewith in the X direction, the socket having an electric part receiving seat with the lead terminals of an electric part received in respective apertures adjacent a contact arm when the electric part is received in the seat and means to move the slide plate between an open contact arms position when the electric part can be inserted into and removed from the seat and a closed contact arms position when the terminal leads of the electric part are engaged by respective contact arms.
Socket apparatus for removably mounting an electric part with a plurality of ball-shaped lead terminals arranged in a selected pattern on said electrical part comprising a base, a plurality of holes formed in the base arranged in a pattern corresponding to the selected pattern, a plurality of elongated contact elements each having a longitudinal axis mounted in a respective hole in the base, a stop member having top and bottom surfaces mounted on the base movable between a locking position and an unlocking position, the stop member having a plurality of apertures extending through the stop member between the top and bottom surface aligned with the contact elements each having an elongated pin portion received through a respective stop member aperture, a protuberance formed on each contact element and a stop member protuberance formed in the stop member in each stop member aperture, each stop member protuberance engaging with a respective contact element protuberance preventing upward vertical movement of the respective contact element when the stop member is in the locking position and each stop member protuberance being out of engagement with the respective contact element protuberance when the stop member is in the unlocking position.
Dependencies are inferred from the claim text.