Integrated circuit socket with a two-piece connector with a rocker arm
View Patent ↗A socket for testing or connecting an integrated circuit is disclosed having a platform for receiving the integrated circuit and adapted to overlay a piece of test equipment or other board, the platform formed with an array of slots each locating a portion of a two-piece connector assembly. When the integrated circuit is seated on the platform, the two piece connector assemblies pivot so as to make contact between a contact pad on the IC and the board for establishing or evaluating signal transmission by the IC. The platform houses a resilient tubular member that biases the connector assembly in a disengaged position out of contact with the board or test equipment. When the IC is placed on the platform, the bias of the resilient tubular member is overcome and an electrical connection is established across the connector assembly.
1. A socket for electrically coupling an integrated circuit (IC) to a board so that a signal may be transmitted thereto, comprising:
a platform for receiving the integrated circuit thereon;
an elongate resilient tubular member housed in the platform; and
a plurality of two-piece connector assemblies, each connector assembly comprising a mount and an associated link pivotable about the mount, each connector assembly having first and second positions, the first position comprising an engaged position wherein an electrical contact is established between the integrated circuit and the board, and a standby position where the link does not establish an electrical contact between the integrated circuit and the board;
wherein the mounts are retained in the platform and comprise a curved cavity on a lateral side opposite an associated link member; and
wherein the associated link member has an arcuate contact surface on an upper side adapted for rolling contact with the integrated circuit, a rocker arm laterally displaced with a bulb-shaped tip seated in the curved cavity of the mount, the link vertically pivotable about bulb tip, and a downwardly sloping leg member
wherein the elongate resilient tubular member biases the connector assemblies in the standby position; and
wherein contact between the integrated circuit and the platform pivots the connector assemblies from the standby position to the engaged position.
2. The socket of claim 1 , wherein the signal path between the integrated circuit and the board is approximately 0.65 mm.
3. The socket of claim 1 wherein a distance between the IC and the board is 0.5 mm.
4. The socket of claim 1 wherein the connector assembly undergoes no deformation between the engaged position and the disengaged position.
5. The socket of claim 1 wherein the link member is disposed between the resilient tubular member and the mount.
6. The socket of claim 1 wherein the platform includes an array of slots aligned with a series of contact pads on the IC, and wherein each of the links project out of a one of the array of slots.