PCB Matrix Format
by Numerical Innovations, Inc. (www.numericalinnovations.com)
Layer Types

Here's are a listing of the available layer types which can be used in the <LAYER>, TYPE field.

Matrix Value Name Description
TOP Top Top Side Metal
BOTTOM Bottom Bottom Side Metal
INTERNAL Internal Internal Metal (Positive Polarity)
NEG_PLANE Neg Plane Plane (Negative Polarity – Usually contains Thermal Dcodes)
POS_PLANE Pos Plane Plane (Positive)
DRILL_THRUHOLE Drill ThruHole NC Drill (Thru-Hole)
DRILL_BLINDBURIED Drill BlindBuried NC Drill (Blind-Buried)
DRILL_NONPLATED Drill NonPlated NC Drill (Non-Plated)
SILK_TOP Silk Top Top Side Silkscreen
SILK_BOTTOM Silk Bottom Bottom Side Silkscreen
MASK_TOP Mask Top Top Side SolderMask
MASK_BOTTOM Mask Bottom Bottom Side SolderMask
PASTE_TOP Paste Top Top Side Paste
PASTE_BOTTOM Paste Bottom Bottom Side Paste
ROUT Rout/Mill NC Rout (Should have tools sizes & format embedded inside file)
DIELECTRIC Dielectric Insulator Layer
COMPONENTS_TOP Components Top Top side Components (Must be CSV Format Centroid & it will be renamed to "comp_+_top")
COMPONENTS_BOTTOM Components Bottom Bottom side Components (Must be CSV Format Centroid & it will be renamed to "comp_+_bot")
MASK_INTERNAL Graphic Mask Internal
CONDUCTIVEPASTE Graphic Conductive Paste
TEMPORARY Temporary Temporary Layer (Used when the gerber type is unknown)
FAB_DRAWING Fab Drawing Fab Drawing (Used for reference only)
ASSEMBLY_DRAWING Assembly Drawing Assembly Drawing (Used for reference only)
MECHANICAL_DRAWING Mechanical Drawing Mechanical Drawing (Used for reference only)
BORDER Border PCB Boarder Layer
SCORE Score Score Layer used for Panel Snap-Outs
GRAPHIC Graphic Default Layer (Used when the gerber type is unknown)