Thermal compression welding device and method

Abstract

The invention discloses a thermal compression welding device. The thermal compression welding device comprises a workbench, a lifting device, a thermal compression welding head and tin feeding devicesused for feeding tin wires to the position of the thermal compression welding head; the thermal compression welding head is installed at the lifting end of the lifting device; and the workbench is located below the thermal compression welding head. According to the thermal compression welding device provided by the invention, one the one hand, the tin wires are conveyed to the position of the thermal compression welding head through the tin feeding devices, the tin wires are melted and adhere to a bonding pad through the thermal compression welding head, meanwhile, thermal compression weldingis achieved through the thermal compression welding head, that is, tin wire melting and thermal compression welding operation are achieved through the thermal compression welding head, and operationis easy; and on the other hand, the tin adding area is controlled through the thermal compression welding head, tin balls are avoided, and the working efficiency and welding quality of thermal compression welding are effectively improved. The invention further discloses a thermal compression welding method.

Description

technical field [0001] The invention relates to the technical field of component welding, in particular to a hot-press welding device. The invention also relates to a thermocompression welding method. Background technique [0002] When welding parts, the fixation between the lead wire and the metal pad is mainly achieved by electronic spot welding, hot-press welding and tinning welding. Since electronic spot welding damages the lead wire, resulting in uneven welding tension, it is usually added After tin welding, the heated tin wire is subjected to thermocompression welding by a thermocompression welding head. [0003] When performing thermocompression welding on components, first place the pad on the tinning device, heat the tin wire with an electric soldering iron, and the tin wire melts and adheres to the pad. Then put the pad with hot tin on the hot-press soldering head, put the lead wire on the hot-tin position, and complete the hot-press soldering by heating the hot-...

AI Technical Summary

Problems solved by technology

[0004] However, due to the hot-press welding operation, it is necessary to independently melt the tin wire and weld the lead wire and the hot tin through the hot-press welding head, and the operation is cumbersome, resulting in low work efficiency of the hot-press welding. On the other hand, the hot-press welding When the head is hot-pressed, the tinning area cannot be controlled, and the uneven tinning will lead to solder balls in the second step of hot-pressing welding, resulting in a decline in welding quality

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