In recent years, the most popular HDI in high-end smart phone is HDI in any layer, which requires blind hole connection between any adjacent layers. It can save nearly half the volume on the basis of ordinary HDI, thus freeing up more space to accommodate batteries and other components.
Any HDI layer needs advanced technologies such as laser drilling and electroplating plug. It is the HDI type with the most difficult production and the highest added value of products, which can best reflect the technical level of HDI. At present, due to the strong technical and financial barriers, the production capacity is mainly concentrated in Japan, Korea, Taiwan and Austria AT&S and other factories. The domestic start is relatively late, and there are few PCB manufacturers with capacity for mass production.

Rocket PCB company's technological process continues to improve, high multi-layer board, HDI technology ranks the forefront in China. The company has strong technical strength, strong technology research and development ability and complete process chain, complete PCB production line, large product span, production capacity covering HDI board, any layer interconnection HDI, high density multi-layer board and fast PCB prototype business.
As the earliest PCB manufacturer to realize HDI mass production in China, the technology process continues to improve.

High Multi-Any layers High Speed printed circuit board