● Automatic tape binding is a kind of chip that integrates multiple pin large scale integrated circuit (IC), instead of traditional packaging into a complete individual, TAB carrier is used to directly glue the unsealed chip on the board That is to say, the soft tape of "Polyamide" and the inner and outer pins etched from the attached copper foil are used as the carrier, so that the large chip can be combined on the "inner pin" first. After automatic testing, the circuit board surface can be combined with the "outer pin" to complete the assembly. This new method of packaging and assembly is called TAB method.