Pressing method and pressing device

A pressing device suitable for pressing an object to be pressed, wherein the object to be pressed is formed by covering an upper side of an integrated circuit element with a lid and is provided with a plurality of pressing sections of different heights on an upper surface of the lid, and the pressing device comprises:

• a lower pressing die provided with a support seat for holding the object to be pressed;
• an upper pressing die provided with a driving mechanism and a pressing block mechanism that can be driven by the driving mechanism, wherein the pressing block mechanism is provided with a plurality of pressing block modules corresponding to the pressing sections;
• and
• a lifting mechanism capable of driving the upper pressing die to move up and down relative to the lower pressing die to make the pressing block mechanism press against the lid or move away from the lid;
• wherein the driving mechanism comprises a main body having a chamber that can accommodate a fluid, a piston that can change a pressure of the fluid in the chamber, and a plurality of plungers capable of simultaneously bearing the pressure of the fluid in the chamber;
• wherein the driving mechanism is provided with a piston driver, which can push the piston to change the pressure of the fluid in the chamber;
• and
• the pressing block mechanism is disposed at one end of each of the plungers.