Item | Current | 2016 | 2017 | |
Max. Layer | 62 | 58 | 60 | |
Track width/space | inner£¨mil£© | 2.5 / 2.5 | 3 / 3 | 2.5/ 2.5 |
outer£¨mil£© | 2.5 / 2.5 | 4 / 3 | 2.5 / 3 | |
Aspect Ratio | 15 : 1 | 14 : 1 | 15 : 1 | |
Copper Weight (oz) | 12 | 8 | 10 | |
Impedance tolerance | ¡À5% | ¡À8% | ¡À5% | |
Material | Microwave material | SV | SV | SV |
Via in pad | SV | SV | SV | |
Lead-free | MP | MP | MP | |
Mix lamination | / | P | SV | |
Metal Based/Core | P | SV | SV | |
HiTg | MP | MP | MP | |
HDI | 1+N+1 | / | P | P |
Buried resistance/electric capacity | / | / | P | |
P: Prototype SV: Small Volume MP: Mass Production | HDI:5+N+5 | HDI:4+N+4 | HDI:5+N+5 |