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 Dome Coating

Dome Coating

Dome coating can effectively prevent chip and lead from falling off, damage and moisture.

Dome coating is mainly used for the protection of multi chip and lead on leadframe. Usually, glue is applied on the front of the leadframe, and the glue flows to the opposite side through the leadframe gap. The positive and negative sides form a certain glue thickness to protect the chip and lead, and increase the service life of components.

Process characteristics

The function of dome coating dispensing process is to increase the reliability of components and prevent components from falling off, collision and damage during the packaging process. The application industries involved are mainly leadframe, chip and lead dispensing process in semiconductor industry.


In the dispensing process of dome coating, the control of glue quantity, glue height, dispensing track and dispensing range are the key points to ensure the dispensing effect. For the dome coating process, high glue and consistency are particularly important.


Due to the high integration of chips, the dispensing space is reduced and the chip packaging space is compact. Therefore, how to control the smaller single point and the stability of glue output is the industry trend.


Axis automation has accumulated many years of application experience in dome coating process, and has mature and reliable products and solutions. In response to future demand, axis automation has increased R & D investment. It can flexibly match various types of dispensing valves, select the same in and out, three-stage transmission track, and automatic loading and unloading machine to meet the needs of different customers.

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