The artistry of design

The artistry of designSteve Bush Snake… Found in the pad ring of a Hewlett-Packard HP 1000 64-bit floating point multiplier. For those of you that don’t know, a full-adder is an arithmetical functional block found in most microprocessors. The chip, made in the late 1970’s, is an early VLSI silicon-on-sapphire device.  
 
When they lay out chips, silicon designers sometimes get a bit carried away and add odd doodles to the metalisation.
The microscopy department of the Florida State University has been collecting these images and has set up a Web Site called Silicon Zoo to show them to the world.
Take a look at http://micro.magnet.fsu.edu/creatures/index.html to see more pictures and find out what else the microscopy department does.


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