PCB Matrix Format
by Numerical Innovations, Inc. (www.numericalinnovations.com)
DFMSTACKS array

MATRIX Array Level: 1

DFM Stacks provide a structured method to reuse existing DFM Constraints and Stacks, and apply them with other FILTERS.
Just by adding unlimited stacks with Filters, the DFM Check rules now become infinite!

Note
DFM Stacks Theory:
1. Keep reusable DFM Constraints - but apply against different [FILTERS]
2. Stack common checks together.


Fields in the DfmStacks array
Description
Name=REF_NAME Required. Reference name for this DFM Constraints array.
Units=MIL|MM

Required. Units to use for this DFM Constraints array. Must be either: MIL or MM.

Example DfmStacks Array:

XML example:

<DfmStacks name="primary">
<constraint name="Mask Pads" filter="filter" bounds="left,bottom,right,top" / >
<constraint name="Critical Topside BGA" net="GND*" / >
<constraint name="4 Layer" bounds="left,bottom,right,top" / >
<dfm_stack name="secondary" / >
</DfmStacks>