In SX Microcontrollers, SX/B Compiler and SX-Key Tool, dpaton wrote:

No problem Bean. 

Since I work at a product development/consulting company, our work is almost always for other people. Part of the policy is that our copyright comes off (and the customer's goes on) only after the bill gets paid in full, which is also when we release gerbers, code, and any documentation that was ordered. It was a hard leson learned unfortunately. Our super duper in-house toys get the copyright on all layers (2-10 depending), hidden under the silkscreen on both sides. Part numbers and the website are put right next to it. Consulting is a nasty business sometimes, and you do what you've got to do. I'm working on obfuscating a design for a client right now that's really driving me nuts. Fake chips, phantom traces, bogus routing layers, fake connectors, the works. I've probably got 20 or 30 hours in and it's not even halfway done. Oy.

I've also been known to put some sneaky things into the inner layers, for fun, on projects where it wasn't a big deal.
Images of dinosaurs in PCB revisions of obscenely obsolete products, things like that. My favorite was an [url=http://www.iowaonlinejournalism.com/OnlineJournalism/Solano/noriaa_big.jpg]anti-riaa image[/url] that got snuck into an MP3 player board by one of the other guys here. It was about 2mm square and in the middle of a very dense bunch of traces, and to the best of my knowledge, still exists in the units on store shelves. I haven't cut one up to find out though...engineering doesn't pay quite well enough for me to buy things only to reduce them to rubble ;-)

-dave

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