Ironwood Electronics recently introduced a new land grid array (LGA) socket addressing high performance requirements for 0.52 mm pitch LGA104 – CBT-LGA-5031.
The contactor is a stamped spring pin with 14 g actuation force per pin and cycle life of 125,000 insertions. The self inductance of the contactor is 0.98 nH, insertion loss of less than 1 dB at 10 GHz and capacitance 0.097 pF. The current capacity of each contactor is 4 amps, and the socket temperature range is -55° C to 180° C.
The socket also features an IC guide for precise LGA edge alignment. The specific configuration of the 
Source: Ironwood Electronicspackage to be tested in the CBT-LGA-5031 is LGA, 10 mm x 5.84 mm body size, 19 x 11 array and 0.52 mm pitch. To use, drop IC into the socket and snap close the clamshell lid. Vertical force is applied by the integrated compression plate between the clamshell lid and device. This socket can be used for device characterization, screening modules and custom burn-in applications with the most stringent requirements.
CBT-LGA-5031 socket features a unique contact design with outside spring and flat stamped plungers that provide a robust solution for burn-in and test applications including excellent electrical signal integrity to meet the requirements of today’s demanding analog, digital, radio frequency, Bluetooth and medical device applications. The socket is mounted using supplied hardware on the target PCB with no soldering, and uses the smallest footprint in the industry to allow inductors, resistors and decoupling capacitors to be placed very close to the device for impedance tuning. The clamshell socket lid incorporates an installation method so that ICs can be changed out quickly.
