Socket addresses high performance requirements for 0.4 mm pitch
devices - SBT-QFN-4008. The contactor is a stamped
spring pin with 34 gm actuation force per pin and cycle life of
100,000 insertions. The self inductance of the contactor is 1 nH, insertion
loss of <1 dB at 7 GHz and capacitance 0.4pF. The current capacity of each
contactor is 2.5A. Socket temperature range is -55 to +155C. Socket also
features an IC guide for precise QFN edge alignment. The specific configuration
of the package to be tested in the SBT-QFN-4008 is QFN, 5x5 mm body size and
0.4 mm pitch. To use, drop IC into the socket, place floating compression
plate, swivel the lid, and apply down force using compression screw.
These socket product lines have been designed to the JEDEC STD. MO-220 and are
available for all standard configurations. Custom designs are also available.
SBT-QFN-4008 socket features a unique contact design with outside spring and
flat etched plungers that provide a robust solution for Burn-in & Test
applications including excellent electrical signal integrity to meet the
requirements of today's demanding analog, digital, RF, Bluetooth and telecom
applications. The socket is mounted using supplied hardware on the target PCB
with no soldering, and uses 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 socket also incorporates a
new quick insertion method so that ICs can be changed out quickly.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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