[PCB_FORUM] Re: Pro-E import of soldermask/solderpaste shapes.

Mitch:

It sounds like your particular interest is for Shields, perhaps developed in 
MCAD (M=mechanical) first, then utilized in ECAD (Electrical). Have you 
considered driving your Soldermask and Solderpaste shapes as a function of a 
shield component? Let the MCAD component be the controlling component and 
require the ECAD librarian to derive his shield component details, from the 
MCAD imported data, matched orientation, etc. With a reference designator 
assigned on the MCAD side and the proper linkages set up between 
(MCAD-ECAD),(see algroidf), then you should have "correct by design" data in 
Allegro, automatically done for you. The only pre-requisite is that you will 
need to have your Allegro design packaged and netlisted before loading in the 
updated (IDF file from MCAD). (It is not a far reach to instantiate a shield 
symbol in the schematic either.) I am not 100% clear how the MCAD format and 
the final ECAD format is for the Shapes you mentioned. At worst it should only 
be an ent!
 ity issue, ie. curves may now be a polygon but they should look the same you 
should not have to redraw anything. The greatest benefit is that you are also 
rock-solidly engaged in an optimal (MCAD-ECAD)librarian process.

Look in C:\Cadence\PSD_15.1\doc\algroidf.pdf for the document that Andy 
mentioned on another reply thread. You should have a local copy as well.

Sincerely yours,

Michael Baumstark

Staff PCB Designer - BSEE, CID+
Motorola - Advanced Product Technology Center 


-----Original Message-----
From: Mitch S. Morey [mailto:cadpro2k@xxxxxxxxxx]
Sent: Tuesday, June 29, 2004 12:38 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Pro-E import of soldermask/solderpaste shapes.


Hi all,

Thought I'd run this thru ya before I search SL. How do you import things
like soldermask/solderpaste SHAPES into Allegro from Pro-E? Our shields
require soldermask openings and the solderpaste shapes for stensil
creation inside allegro. We want them as shapes (like they're drawn in
Pro-E. Now they come across as 2D lines though.) like the
PLACEMENT/KEEPOUTS come across, so we don't have to redraw them. Does
anyone know how that's done on the pro-e side?

Thanks in advance. Good day.


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