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12,648 Views 0 Replies Last post: Apr 12, 2012 5:11 AM by craig.myers RSS
craig.myers Contributor 14 posts since
Sep 15, 2008
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Apr 12, 2012 5:11 AM

Part with Multiple Placement & BOM Options

We have a few parts that we would like variant options for BOM and placement.  The problem is they are not pin-compatible.  Is there any options or workarounds here that anyone knows of?

 

Part 1 - Option A: 3-axis magnetic tripod with 2 pins per leg (6 pins total).  Option B: 3 individual 2-pin coils within the confines of the tripod footprint and pre-routed (6 pins).  If I place the tripod, I need 1 BOM entry and one placement data with the origin in the center of the tripod.  If I place the coils, I need 3 BOM entries with 3 placement datas with origins on coils.

 

 

coil_dual.jpg

 

Part 2 - Option A: Differential Common Mode Choke with 4 pins.  Option B: A pair of 0402 zero ohm resistors to short the pads of the choke in-line between the pads to avoid having the diff pair break and create a loop of impedance discontinuity.  If I place the choke, 1 BOM entry and 1 placement data at choke centroid.  If I place the jumpers, 2 BOM entries and 2 placement datas at chip centroids.

 

 

choke_dual.jpg

 

To date we only have these 2 instances.  It is easy for me to make a cell that facilitates both parts and symbol graphics.  The issue becomes the BOM and placement data.  I am not opposed to a script in Dx and another for Expedition that is embedded within an existing post-processing script that triggers on a part number of these parts and gives the discrete options. 

 

Are we crazy?  Expecting too much here?

 

TIA ...

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