![]() Universal test sockets Ī pair of ZIF connectors, with the flexible flat cable that connects to them. Smaller ZIF sockets are commonly used in chip-testing and programming equipment, e.g., programming and testing on EEPROMs, Microcontrollers, etc. The rest of the electronics industry has largely abandoned sockets (of any kind) and instead moved to the use of surface mount components soldered directly to the board. These CPU sockets are designed to support a particular range of CPUs, allowing computer retailers and consumers to assemble motherboard/CPU combinations based on individual budget and requirements. Large ZIF sockets are only commonly found mounted on PC motherboards, being used from about the mid 1990s forward. Low insertion force (LIF) sockets reduce the issues of insertion and extraction, but because of its lower insertion force than a conventional socket, are likely to produce less reliable connections. Also, even with relatively small pin counts, each pin extraction is fairly awkward and carries a significant risk of bending pins, particularly if the person performing the extraction hasn't had much practice or if the board is crowded. ![]() For an IC with hundreds of pins, the total insertion force can be very large (hundreds of newtons), leading to a danger of damage to the device or the circuit board. Demonstration of a PGA-ZIF socket ( AMD 754).Ī normal integrated circuit (IC) socket requires the IC to be pushed into sprung contacts which then grip by friction. ![]()
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