As the current design of portable products is developing toward miniaturization and high density,the difficulty of PCB design is also increasing, which puts forward higher requirements for PcB processing technology. Most of the current portable products use the BGA package with a pitch of less than 0.65mm, and the design process of blind and buried holes is used. So what is a blind and buried hole...

What is a high-density interconnect (HDl) PCB circuit board? High Density Interconnect (HDI) PCB circuit board is a circuit board with relatively high line distribution density using microblind and buried via technology. The most effective way to increase board density is to reduce the number of vias and precisely place blind and buried vias to meet this requirement, resulting in an HDI board. Thi...