Ultra-low power circuit techniques for a new class of sub-mm3 sensor nodes

Bell´s Law predicts continual reductions in the size of computing systems. We investigate the status of the next paradigm shift that will usher in ubiquitous computing - sub-mm³ sensor nodes. However, this form factor remains beyond the capabilities of modern integrated circuit design techniques due to battery size. This paper describes new ultra-low power circuit techniques applied to digital processors, memory, power management, and a special focus on standby mode operation, that will bring mm³ sensor nodes to reality.