Guidelines for the selection and placement of decoupling capacitors that work well for one-sided or two-sided printed circuit boards are not appropriate for multilayer boards with power and ground planes. Boards without internal planes take advantage of the power bus inductance to help decouple components at the higher frequencies. An effective decoupling strategy for multilayer boards must account for the low inductance and relatively high capacitance of the power bus.


Electrical and Computer Engineering

Keywords and Phrases

Capacitance; Capacitors; Decoupling Capacitors; Decoupling Strategy; Ground Planes; Inductance; Multilayer Printed Circuit Boards; Power Bus Decoupling; Power Bus Inductance; Power Planes; Power Supply Circuits; Printed Circuit Design; Surges; Transients; Nonhomogeneous Media; Printed Circuits; Voltage; Capacitors; Power Distribution; Integrated Circuit Noise; Power System Modeling; Frequency; Current Supplies

International Standard Serial Number (ISSN)

0018-9375; 1558-187X

Document Type

Article - Journal

Document Version

Final Version

File Type





© 1995 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 May 1995