"Hardhat" Sockets



Tecknit's "Hardhat" sockets are designed to provide maximum electrical test performance, with high repeatability in both production and laboratory environments. Available in BGA, and LGA socket versions, Tecknit "Hardhat" sockets offer solderless interconnection between IC packages and printed circuit boards. Interconnection is accomplished using Tecknit "Fuzz ButtonŽ" technology. Fuzz Buttons, acting like miniature springs, are combined with Tecknit'c "Hardhat" contact elements to provide the shortest electrical path available. Multiple "Hardhat" tip configurations are available to mate perfectly with BGA solderballs or low profile LGA pads. Tecknit Fuzz buttons are fully retained, protected beneath the "Hardhat" contacts, and are removable only from the PC board side of the socket. Providing virtually "invisible" interconnection. Tecknit's "Hardhat" sockets are used in high speed test applications to ensure reduced signal distortion.
Performance
Data
.030" Dia. Au/Be/Cu
@1.27 mm Spacing
.020" Dia. Au/Be/Cu
@1.00 mm Spacing
10 Mhz 100 Mhz 1 Ghz 10 Mhz 100 Mhz 1 Ghz
Max. Attenuation dB 0.00 0.01 0.20 0.02 0.05 0.45
Impedance ohm 50.0 49.8 49.5 50.5 52.0 52.8
Standing Voltage Wave Ratio -- 1.00 1.04 1.05 1.00 1.01 1.05
Near End Cross Talk
(Grd-Sig-Sig-Grd)
dB -62 -42 -21 -62 -42 -27
Near End Cross Talk
(Sig-Grd-Sig)
dB -82 -60 -41 -62 -45 -20




.030" Dia. Au/Be/Cu
@1.27 mm Spacing
.020" Dia. Au/Be/Cu
@1.00 mm Spacing
Current Rating (Continuous) Amp 5 4
Propagation Delay pS <50 <50
Rise Time pS 100 100
Self Inductance nH 2.3 Max 2.7 Max
Mutual Inductance nH 1.9 Max 2.3 Max
Capacitance pF .2 Max. .3 Max.
Low Level Circuit Resistance m-ohm <20 <20
Operating Temperature Range* °C -55 to +85 -55 to +85
* Alternate wire materials are availble for high temperature appplications

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