HDI PCB  (High Density Interconnect Printed Circuit Board)

 Valiant Electronics is constantly working to improve our technological capabilities to meet the demand for more complex circuit boards.   Below you can find our push to improve our technological capability. 

 

HDI PCB :

Item 2014 2015~2016 2017~2019
Volume Sample Volume Sample Volume Sample
Layer count 32 42 38 44 42 48
Min Line/space (μm) 50/50 40/45 40/45 40/40 35/40 35/35
Min drill hole
diameter (mm)
0.15 0.10 0.15 0.10 0.15 0.10
Aspect ratio
of PTH
14:1 16:1 16:1 18:1 18:1 20:1
N+C+N 4+C+4 5+C+5 5+C+5 6+C+6 5+C+5 6+C+6
Any layer interconnection 5+2+5 6+2+6 5+2+5 6+2+6 5+2+5 6+2+6
Plate filling via YES YES YES
Min. core thickness (exclude copper) (μm) 50 40 40 30 40 30
Min. Laser Drill diameter (μm) 75 65 65 50 50 40
Via on buried
hole/stacked via
YES YES YES
Material FR4, Megtron, Nelco, Rogers, Heavy Copper, etc.
Embedded capacitor PCB YES YES YES
Surface Process Lead-free HASL, ENIG, OSP, Immersion silver, Immersion tin,
Flash gold, Gold finger plating,  Selective hard gold plating,
Peelable solder mask, Carbon ink