Title :
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
fDate :
8/1/1999 12:00:00 AM
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;
Journal_Title :
Advanced Packaging, IEEE Transactions on
DOI :
10.1109/6040.784476
