hydraulic cutting machine multiple party formation of pins

PGA pin grid array package
PGA (Pin Grid Array Package) chip package inside and outside of the chip has multiple party formation of pins, hydraulic cutting machine each pin square formation along the chip are arranged around a certain distance away. According pin as the number, you can circle surrounded by 2-5. When installing the chip into a special PGA sockets. To enable the CPU to more easily install and remove, start from 486 chip, there's called ZIF CPU socket, designed to meet the PGA package installation and removal on the CPU requirements.
ZIF (Zero Insertion Force Socket) is a zero insertion force socket. This socket wrench to gently lift, CPU can be easily and easily into the socket. Then press the lever back into place, the use of the special structure of socket itself extrusion pressure generated by hydraulic cartridge valves the CPU firmly pin and socket contacts, there is absolutely no problem of poor contact. Simply remove the CPU chip and socket wrench gently lift, the pressure lifted, CPU chip can be easily removed.
PGA package has the following characteristics:
1 plug operation more convenient, and high reliability.
2 can be adapted to higher frequencies.
Intel series CPU, the 80486 and Pentium, Pentium Pro are using this package.