| Year | 2015 | 2016 | 2017 | 2018 |
| Line width (Hoz base) | 0.1mm (4 mil) | 0.075mm (3 mil) | 0.06mm (2.3mil) | 0.04mm (1.6mil) |
| Copper thickness | 5oz | 8oz | 12oz | 13oz-14oz |
| Layer | 8L | 14L | 20L | 32L |
| Thickness | 2.4mm | 3.2mm | 4.0mm | 4.5mm |
| Buried & Blind via) | 6L | 10L | 12L | Stack via |
| Metal Core | Aluminum & Copper core (1-L) | Aluminum & Copper core (6L to 4L) | Aluminum & Copper core(8L to 10L) | Aluminum & Copper core(8L to 10L) |
| Surface treatent | Lead Free HASL Emersion Gold& silver & Tin ,OSP | Leaded and LF Free HASL Emersion Gold & silver & Tin , OSP | Leaded and LF Free HASL Emersion Gold & silver & Tin ,OSP, ENIPIG | Leaded and LF Free HASL Emersion Gold & silver & Tin ,OSP, ENIPIG |
| Aspect ratio | 6 | 10 | 12 | 14 |
| Material | FR-4 Tg140,150,180 | FR-4 Halogen Free | Poly Imid Teflon | Composite material |
