QFN Socket Supports 0.65-mm Pitch Devices at High Temp Range

Ironwood Electronics has introduced a new performance QFN socket for 0.65mm pitch devices. The SS-QFN204A-01 socket, designed for a 12mm package size, operates at bandwidths up to 6.5 GHz with less than 1dB of insertion loss. Designed for up to 500,000 actuation cycles, the socket is able to dissipate up to 4 watts over a temperature range of Ironwood Electronics C16902b_highres-40 C to +150 C without the need for an additional heat sink. This is all accomplished within a 2.5mm larger border. It accommodates a chip with 204 pins plus ground pad in the center of the QFN is contacted with additional spring pins for highest bandwidth interface.

The SS-QFN204A-01 socket utilizes high endurance spring pins, which allow for product use in multiple applications including burn-in, production test, and prototype development. In addition to its wide temperature range and high endurance the pin operates with an inductance of 1.3 nH and with a capacitance to ground of 0.53 pF. Current carrying capacity is 1.5 amps per pin. Normal force for actuation is only 16gms per pin with a typical contact resistance of 82 mΩ. Pricing for the SS-QFN204A-01 socket is $1,905 at quantity 1 with reduced pricing available depending on quantity required.

Ironwood Electronics | www.ironwoodelectronics.com

Clamshell Spring Pin QFN Socket

Ironwood Electronics recently introduced a new QFN socket addressing high performance requirements for testing QFN devices – CBT-QFN-7039. The contactor is a stamped spring pin with 17-g actuation force per ball and cycle life of 50,000 insertions. The self inductance of the contactor is 0.75 nH, insertion loss less than 1 dB at 31.7 GHz. The current capacity of each contactor is 1.5 A at 20°C temperature rise. Socket temperature range is –55°C to 180°C.Ironwood-C14132a_highres

The socket also features an alignment guide for precise device to pin alignment. The specific configuration of the package to be tested in the CBT-QFN-7039 is a QFN, 3 × 3 mm, 0.5-mm pitch, 10 positions with center ground pad. The socket is mounted using supplied hardware on the target PCB with no soldering. To use, place the QFN device into the socket base and lock the double latch socket lid on to the base using the latch.

The socket uses a compression wave spring to apply constant downward pressure enabling the device be interconnected to the target PCB. This socket can be used for hand test and quick device screening applications with the most stringent requirements.

The CBT-QFN-7039 costs $552 with reduced pricing available depending on quantity required.

Source: Ironwood Electronics