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ACF bonding process

ACF bonding process , is the process of Chip ic/COF ic/FPC bonded to the LCD(Glass)/PCB/Film/FPC/ ,use the ACF tape as the medium connecting materials,use the hot bar/bonding head as the source of the heat and pressure,use the tooling as the holder,and the silicone rubber or teflon as the Cushioning material, all the ACF bonding process finished by the ACF bonding equipments.

ACF tape has little conductive particles in the conductive lines of the tape. 

During ACF bonding, a combination of heat & pressure is applied on to chip (FPC/IC) for an appropriate time.

Conductive particles (each 3~30um) are compressed between IC and substrate (glass / PCB) while insulating materials pushed away.

This allows the compressed Ni-Au layer on the particles to conduct electricity between the IC and the substrates (z-axis).

The insulated particles are distributed with a minimum chance of electrical shorting in the x-axis and y-axis.

As the epoxy cures and conductive particles are trapped into permanent compressed form.

The compressed particles, by its elastic nature, are constantly pushing outwards to maintain good electrical conductivity under different environmental conditions. 

This process is what produces the connection between the ACF tape and the components.  Advanced Integrated Technologies is equipped to assist you with your ACF bonding process.