A new high-performance QFP socket for 0.5-mm-pitch 64-pin QFPs called the SG-QFE-7020 socket is designed for 10x10x1.6-mm packages with 12×12-mm lead tip-to-tip. It operates at bandwidths up to 30 GHz with less than 1 dB of insertion loss. The contact resistance is typically 20 m° per I/O. The socket connects all pins with 30-GHz bandwidth on all connections. 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 sit close to the device for impedance tuning. The socket also incorporates swivel lid with compression screw, so ICs can be changed out quickly. The socket features a floating compression plate made of ceramic peek material to force down the QFP leads on to elastomer. There is also a hard stop feature built into the compression mechanism.
The SG-QFE-7011 sockets are constructed with high-performance and low-inductance gold-plated embedded wire-on-elastomer as interconnect material between device and PCB. They also have a square copper foil in the middle to connect the ePad, which is at a different plane than the peripheral leads. The temperature range is -35C to +125°C. The pin self-inductance is 0.15 nH and its mutual inductance is 0.025 nH. Capacitance-to-ground is 0.01 pF. Current capacity is 2 A/pin.
Pricing for the SG-QFE-7020 is $718 at qty 1 with reduced pricing available depending on quantity required.
Ironwood Electronics, 1335 Eagandale Ct, Eagan, MN 55121, (952) 229-8200, www.ironwoodelectronics.com