BGA welding of CPU base

BGA welding of CPU base

Some motherboard CPU is the BGA welding, the first to introduce (except for the 775CPU block) the other

CPU block welding method.

Welding in the following way:

first clean the CPU seat next to the CPU socket around the painting of the high flux.

Note: not containing rosin flux.

Down in the CPU above use an I / O chip, and then using a hot-air gun first temperature open to 200 DEG

around in the CPU socket at the bottom of the low temperature preheating, motherboard slightly change

namely temperature open to 500 degrees high temperature heating about 25-30 "began after the cessation

of heating. Cooling.