本帖最后由 jen 于 2016-9-1 14:40 编辑 ' |0 e: V3 y0 F8 E% E% a
' v }* {4 f' N) Z請問) g: X2 c7 @: i
backdrill --> 就是盲孔嗎? 1 V% K& i5 ?) ^ 9 D# ?9 m) g9 [5 L2 `% u我查的是 Blind vias 盲孔,Buried vias 埋孔 1 r6 d i! a: }# _5 U6 @Blind vias — Vias that pass through an outer layer and connect to an inner layer.- |: ^! [3 v! R+ i9 k
Buried vias— A partial via that passes through only the inner layers. 3 x1 m1 j9 j4 r4 m3 Q! V, a8 A ! K3 }) e4 G, O% R3 h