Decoupling capacitors are often utilized to mitigate power distribution
noise, maintaining the impedance of a power distribution system below
the target specifications in the range of operating frequencies.
This book presents power distribution grids with on-chip decoupling
capacitors and discusses the design of decoupling capacitors for power
distribution networks with multiple supply voltages. To be effective,
on-chip decoupling capacitors should be located inside the effective
radius. This book develops a design methodology for placing on-chip
decoupling capacitors in this manner and presents two criteria to
estimate the minimum required on-chip decoupling capacitance. Techniques
and algorithms for the computer-aided design and analysis of on-chip
power distribution networks are also described; however, the emphasis of
the book is on developing circuit intuition and understanding the
principles that govern the design and operation of power distribution
systems.