Mechanical Outline
Defines overall area for board design
Clearances
Board edge, mating area at next assembly
Mounting Holes
Location, size, hardware used
Tooling Holes
Used throughout fabrication, assembly and testing of boards
Fiducials
Surface feature used for optical alignment of board during assembly
Keep-out Areas
Areas where no components and/or copper can be located
Height Restrictions
Areas where there are potential interference issues at next assembly
Fixed Component Location
Connector locations for mating to next higher assembly
Critical component locations
Additional Mechanical Hardware
Card Guides, stiffeners, sockets
Design, Fabrication and Manufacturing constraints
Board material
Board thickness / Layer stack-up
Via size
Voltage and current used for circuits
Critical circuit routing requirements
Thermal considerations
Fabrication and assembly methods
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