Electrical Design, Mechanical Design Incremental Data Exchange in Allegro
PCB Editor
October 2019 7 Product Version 17.4-2019
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ECAD/MCAD Library Synchronization
The key to successful implementation of ECAD and MCAD interfaces is the complete
synchronization of the respective libraries. The ECAD and the MCAD libraries must be
validated to ensure that the following are true:
❑ Origin – The ECAD and MCAD symbols of the same object must have the same
symbol origin, body center, pin 1, and so on. A mismatch results in incorrect
placement of component.
❑ Orientation – The orientation must be identical to ensure that component rotations
are correctly matched.
❑ Mounting View – ECAD libraries are typically developed from the top layer or top
plane view. A mismatch in the plane layers will result in incorrect layer placement
(TOP vs. BOTTOM) and component mirror flags.
❑ Height – Maximum and minimum height values should match to provide for proper
clearance. Changes in symbol height values must be managed at the library-level
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Panelization
Table 1-1 IDF 3.0 vs IDX 2.0, continued
