Principle of Pulse Heat Unit (Hot Bar Bonder)

Pulse heat unit is intended to solder electric components.
It consists of a reflow head which holds down the object and applies pressure force and the pulse heat power supply which applies the current.

Pulse heating is an instantaneous heating method. Heating is performed only when the solder is desired to be melted.
Electric current is applied to the iron to generate heat by resistance and the solder is melted. When the solder has melted, the current will be stopped and the solder is cooled. And when the solder has hardened, the heater tip is raised.

Because the pressure is kept applied until the solder is hardened, highly reliable joining without lifting up can be achieved.

Basic Configuration of Pulse Heat Unit (Hot Bar Bonder) and Role of Each Part

The object to be joined is held down and the electric current is flown while the pressure is being applied, and a heat is generated by resistance heating.

Movie Introducing the Principle of Pulse Heat Unit

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