Actually, we have a project that uses a fatherboard, but as you might guess, it came after the motherboard in the design (ran out of space and then the fatherboard design idea made sense in terms of signal flow).  I think they might call the boards in between daughterboards (probably just call them by their functional names), but have yet to see a sonboard.  Another project does use grand-daughterboards, as you might guess, they go onto the daughterboard.  [Gets weird when we reuse those grand-daughterboards on a different project where there is no daughterboard used.]

I've never seen a mother-in-law board but I'm pretty sure many a board has been affectionately called the same endearing terms that most MIL's get...

Shawn Upton, KB1CKT
Test Engineer
Allegro MicroSystems, LLC
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603.626.2429/fax: 603.641.5336


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Hernefjord
Sent: Friday, September 20, 2013 1:35 AM
To: [log in to unmask]
Subject: [TN] Friday NTC:

Hi all, time for a very serious question: whole my life I have , as well as rest of world, used the name 'motherboard'.  For fulfilling natures rule of balance and harmony, there must be a 'fatherboard', but I have never seen it. Have you hold such a board in your hands?

Inge

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