ATI GPU First X Architecture Chip:
But I gotta say.. going above Metal 2? What wusses. The Nemesis Encryptor didn't. We'll ignore the fact that it didn't work...
According to the X Initiative, 'The X Architecture rotates the primary direction of the interconnect in the fourth and fifth metal layers by 45 degrees' from the traditional right angles, but remains compatible with 'existing cell libraries, memory cells, compilers and IP cores by preserving the Manhattan geometry of metal layers one through three.' The X Initive says this is the first 'production-worthy approach' to the 'pervasive use' of this design.
vlsi, ic, nemesis encryptor