Ironwood Electronics recently introduced a new socket addressing high performance requirements for Burn-in and Test applications – SBT-BGA-6558. The contactor is a stamped spring pin with 31 gram actuation force per ball and cycle life of 125,000 insertions. The self inductance of the contactor is 0.88 nH, insertion loss of < 1 dB at 15.7 GHz and capacitance 0.097pF. The current capacity of each contactor is 4 A at 80°C temperature rise. Socket temperature range is -55°C to +180°C.
The socket features a floating guide for precise ball to pin alignment. Socket also features cutout in the floating guide for accommodating die on the bottom side of the package. The specific configuration of the package to be tested in the SBT-BGA-6558 is BGA, 31 x 31-mm body size, 1-mm pitch, and 30 x 30 ball array. To use, drop IC into the socket, place compression plate and swivel the lid. Down force is applied by turning compression screw. This socket can be used for hand test and quick turn custom burn-in applications with the most stringent requirements.