Extreme temperature socket for custom-sized devices

A new QFN socket addresses high-performance requirements for custom sized devices. Called the CBT-QFN-7055, its contactor is a stamped spring pin with 31-g actuation force per pin 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 0.097 pF. The current capacity of each contactor is 4 A at 40°C temperature rise. Socket temperature range is -55 to +180°C. The socket also features an IC guide for precise QFN edge alignment. The specific configuration of the package to be tested in the CBT-QFN-7055 is QFN, 50×40-mm body size and 0.92-mm pitch. Vertical force is applied by the integrated compression springs between the socket lid and compression plate. This socket can be used for hand test, screening modules and custom burn-in applications with the most stringent requirements.

These socket product lines have been designed to the JEDEC STD and are available for all standard configurations. Custom designs are also available. CBT-QFN-7055 socket features a special 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 demanding analog, digital, RF, 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. The smallest footprint allows inductors, resistors and decoupling capacitors to be placed very close to the device for impedance tuning. The lever actuated socket lid incorporates a smooth force application via cam mechanism for precise IC contact to PCB.

Pricing for the CBT-QFN-7055 is $702 at quantity one with reduced pricing available depending on quantity required.

Ironwood Electronics, 1335 Eagandale Court, Eagan, MN 55121, USA, 800-404-0204, http://ironwoodelectronics.com/index.cfm