Ironwood Electronics recently introduced a new socket addressing high performance requirements for burn-in 
Source: Ironwood Electronicsand test applications.
The SBT-BGA-6562 contactor is a stamped spring pin with 30 g actuation force per ball and cycle life of 125,000 insertions. The self inductance of the contactor is 0.95 nH, with an insertion loss of less than 1 dB at 18.1 GHz and capacitance of 0.284 pF. The current capacity of each contactor is 3 amps (free air), and the socket temperature range is -55° C to 180° C.
The socket features a floating guide for precise ball to pin alignment, and a 30 W heat sink screw for power dissipation. The specific configuration of the package to be tested in the SBT-BGA-6562 is BGA, 21 mm x 21 mm body size, 0.8 mm pitch and 25 x 25 ball array. To use, drop IC into the socket, place compression plate and swivel the lid. Down force is applied by turning the heat sink compression screw with an axial fan. This socket can be used for hand test and quick turn custom burn-in applications with the most stringent requirements.
Pricing for one SBT-BGA-6562 is $1,844 with reduced pricing available depending on quantity required.
