Power distribution system design methodology and capacitor selection for modern CMOS technology

Author

Smith, Larry D. ; Anderson, Raymond E. ; Forehand, Douglas W. ; Pelc, Thomas J. ; Roy, Tanmoy

Author_Institution

Sun Microsyst. Inc., Palo Alto, CA, USA

Volume

22

Issue

3

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

284

Lastpage

291

Abstract

Power systems for modern complementary metal-oxide-semiconductor (CMOS) technology are becoming harder to design. One design methodology is to identify a target impedance to be met across a broad frequency range and specify components to meet that impedance. The impedance versus frequency profiles of the power distribution system components including the voltage regulator module, bulk decoupling capacitors and high frequency ceramic capacitors are defined and reduced to simulation program with integrated circuit emphasis (SPICE) models. A sufficient number of capacitors are placed in parallel to meet the target impedance. Ceramic capacitor equivalent series resistance (ESR) and ESL are extremely important parameters in determining how many capacitors are required. SPICE models are then analyzed in the time domain to find the response to load transients

Keywords

CMOS integrated circuits; SPICE; ceramic capacitors; integrated circuit design; power supply circuits; voltage regulators; CMOS technology; SPICE model; ceramic capacitor; decoupling capacitor; design methodology; equivalent series resistance; impedance; power distribution system; voltage regulator; CMOS technology; Capacitors; Ceramics; Design methodology; Frequency; Impedance; Power distribution; Power systems; SPICE; Voltage;

fLanguage

English

Journal_Title

Advanced Packaging, IEEE Transactions on

Publisher

ieee

ISSN

1521-3323

Type

jour

DOI

10.1109/6040.784476

Filename

784476