A PCB has 2 signal layers, a split power layer and one ground layer. It also has two solder mask and two silkscreen layers.

Is the board classified as:

A) a 4 layer board?

B) a 5 layer board?

C) a 7 layer board?

D) a 8 layer board?

E) a 9 layer board?

A) 4 layers

Only the conductive layers count. A split power layer is still one layer.

What would be the layer number for the solder mask on the secondary layer?

A) layer 4

B) layer 5

C) layer 6

D) layer 7

E) layer 8

A) layer 6

What would be the layer number for the silkscreen on the primary layer?

A) layer 4

B) layer 5

C) layer 6

D) layer 7

E) layer 8

A) layer 7