Drills

Connection options

Drills

A

blind via (drilled depth-controlled)

Ø ≥ 0.20 mm, AR 1:1

C

buried via (resin filled)

Ø ≥ 0.20 mm, AR 1:9

E

microvia (laser drilled)

Ø ≥ 0.10 mm, AR 1:1

F

blind via (resin filled)

Ø ≥ 0.20 mm, AR 1:9

G

through via (mechanically drilled)

Ø ≥ 0.20 mm, AR 1:9

     
   

AR = Aspect Ratio

"Aspect Ratio" is the ratio between drilling depth and diameter.

Depth-controlled drilled blind vias

Aspect

K

calculate 50 µm for drill tip

L

effective drilling depth (Aspect Ratio max. 1:1)

M

min. 150 µm insulation distance to the next active layer

 

K drill tip depends on hole diameter*

*Beispiele:

hole diameter 0,2 drill tip 50 µm
hole diameter 0,3 drill tip 70 µm
hole diameter 0,4 drill tip 90 µm