TOSA laser welding of 100G optical modules

TOSA laser welding of 100G optical modules

The heat source of optical module is mainly in PCB chips and TOSA and ROSA. Generally, TOSA is available in the following two packages: coaxial package and box package. Take coaxial package welding as an example:

How to solder a 100G optical module TOSA coaxial FPC with PCBA? After a comprehensive evaluation, the process engineer of Zichen Laser decided to use the laser solder paste soldering process for proofing, first the solder paste is dotted on the pad of the Optical device FPC and PCBA, and then the solder paste is heated and fused with the laser, and a stable connection is formed after cooling, and the laser welding process directly uses 4 pads irradiated on the product with a large light spot, and the welding time is only about 3 seconds, and the final FPC and PCBA welding effect is as follows:

Equipment recommendation

Zichen automatic spot solder paste laser soldering machine adopts high-precision spot solder paste mechanism, temperature feedback control system, coaxial CCD visual positioning, motion mechanism and semiconductor laser welding system, which is widely used in the processing and production of customers in the optical communication industry, with strong compatibility and integrated production line production.