Welcome to Well-Tech - one of the leading manufacturers and suppliers of PCB products in China. Our factory is engaged in PCB manufacturing and offering customized top quality mutilayer hdi printed circuit board with 0.6mm board thickness and 3mil trace width 3mil gap. at competitive price. High reliability, strong diversity and expert advice are our characteristics. Please contact us if you have inquiry.

Products description:

HDI PCB: HDI (High Density Interconnector) PCB has smaller holes (≤0.15mm) in BGA or copper pad which will using laser drilling, and most of HDI PCB has intersect blind and buried vias. HDI technology becomes more and more popular for the field of mobile phone, PC, automotive electronics and other digital products.

Products specification:

Layers:  4

Material /Laminate: IT180A (TG180)

Board thickness: 0.6mm

Minimum trace width/gap: 3/3mil

Minimum hole: 0.1mm

Copper weight: inner & outer 0.5oz

Finishing: ENIG

BGA design rules

1)The minimum BGA ball should be above 10mil for HASL and HASL lead free surface finish.

2)Min 9mil size BGA ball for Immersion Gold.

3)For minimum via（Except 0.15mm）, the PCB thickness/minimum hole size that the aspect ratio should be ≤10.

4)The size of 0.15mm via holes only be drilled for finished thickness board ≤1.2mm.