PCB Features

Mechanical Outline
 Defines overall area for board design

 Board edge, mating area at next assembly

Mounting Holes
 Location, size, hardware used

Tooling Holes
 Used throughout fabrication, assembly and testing of boards

 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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