Layer Parameters

In the Job Matrix, the layer parameter columns represent the basic layer characteristics: name, type, subtype, context, polarity, reference, and dielectric reference.

Layers

Name of the layer selected in the matrix.

Type

The type assigned to a layer is indicated by the color of the layer row in the matrix:

signal
power_ground
mixed
solder_mask
silk_screen
solder_paste
drill
rout
document
mask
dielectric
conductive_paste

Subtype

Layer subtype from the list of subtypes available for the assigned layer type. See “Layer Subtypes”.

Context

Controls whether the layer is part of the physical board:

board — Layers that are part of the physical board.
misc — Any other layers, such as documentation and drill.These virtual layers contain information about the board, but they do not correspond to physical layers on the board.

Polarity

Positive or negative layer polarity.

In negative copper layers, features represent laminate instead of copper.

Reference

Layer being used as a reference layer for the selected layer. These are reference layers for non-copper feature layers such as solder mask, silk screen, or solder paste.

Dielectric Reference

The position of the copper layer to which the dielectric layer relates: none, above, below, both.

Reference layers for dielectric layers are always copper layers.