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8-layer ENIG HDI PCB High Component Density For 5G Communication Equipment
♦ What is HDI PCB?
HDI (High Density Interconnect) PCB is a high-density circuit board constructed by micro blind buried via technology, and uses a build-up process to achieve three-dimensional interconnection of inner and outer layer circuits. The core of its manufacturing lies in the use of laser drilling and electrochemical hole filling processes to form micron-level conductive paths between layers, so that each layer of circuit can be vertically connected without relying on traditional through holes. Ordinary HDI uses a single-layer structure, while high-end products are stacked through multiple layers, combined with advanced technologies such as stacked holes and laser direct forming, to further improve circuit density and electrical performance.
♦ Characteristics of HDI PCB
♦ Applications of HDI PCB
♦ Technical Parameters
Item |
Spec |
Layers |
1~64 |
Board Thickness |
0.1mm-10 mm |
Material |
FR-4, CEM-1/CEM-3, PI, High Tg, Rogers, PTEF, Alu/Cu Base,Ceramic, etc |
Max Panel Size |
800mm×1200mm |
Min Hole Size |
0.075mm |
Min Line Width/Space |
Standard: 3mil(0.075mm) Advance: 2mil |
Board Outline Tolerance |
士0.10mm |
Insulation Layer Thickness |
0.075mm--5.00mm |
Out Layer Copper Thickness |
18um--350um |
Drilling Hole (Mechanical) |
17um--175um |
Finish Hole (Mechanical) |
17um--175um |
Diameter Tolerance (Mechanical) |
0.05mm |
Registration (Mechanical) |
0.075mm |
Aspect Ratio |
17:01 |
Solder Mask Type |
LPI |
SMT Min. Solder Mask Width |
0.075mm |
Min. Solder Mask Clearance |
0.05mm |
Plug Hole Diameter |
0.25mm--0.60mm |