General PCB | Unit | 2016 | 2017 | 2018 | |||
---|---|---|---|---|---|---|---|
Photo | Mass | Photo | Mass | Photo | Mass | ||
Inner Core Thickness | ㎛ | 80 | 150 | 60 | 120 | 50 | 100 |
Line / Space | ㎛ | 100 / 75 | 110 / 100 | 95 / 85 | 100 / 85 | 85 / 65 | 100 / 80 |
Annular Ring | ㎛ | 100 | 150 | 85 | 120 | 75 | 100 |
Min Hole Dia.(Mech.) | ㎛ | 250 | 300 | 200 | 250 | 150 | 200 |
PSR Dam Width | ㎛ | 90 | 100 | 70 | 90 | 60 | 80 |
Router Tolerance | ±㎛ | 100 | 150 | 80 | 120 | 50 | 100 |
Impedance Control | % | - | - | 7 | 10 | 7 | 7 |
Surface Finish | ENIG / ENEPIG / OSP / Tin / Soft Gold /Hard Gold / HASL |