The Floating NBL Architecture: Enabler of a Quasi-SOI process

The floating buried layer isolation architecture enables a cost reduction of high-voltage Bulk BCD technologies, while providing circuit designers with a footprint and degrees of freedom similar to SOI, without its disadvantages. The concept embraces parasitics, rather than fighting or avoiding them, and replaces observability and full controllability of all potentials by a self-organizing principle governed by Kirchhoff’s law.