In fact, for both technologies, the root cause is CSP and flip-chip blue light. As far as the development of these two chip technologies is concerned, the flip-chip Blu-ray chip developed several years earlier than CSP. At present, the flip-chip Blu-ray technology has gradually matured, and many companies have also launched products.
However, although CSP technology has also produced products, it is still in the primary stage. Therefore, Dr. Mo Weiqing believes that Blu-ray flip-chip COB will be the mainstream for a long time to come, which is also in line with the current development status of these two technologies.
Of course, the development of any product or technology is linked to the market, so there is no absolute thing. As Dr. Lu Jinyu, deputy general manager of Long Da Electronic Marketing Group, thinks.
Because of the different attributes of flip-chip packaging architecture, the choice of substrate connecting COB is also different, and the specifications and production advantages are also different, but each has its own technical advantages and the projects that can still be improved at this stage must be overcome.