5-TA1
Utilization of Buried Capacitance(TM) — A Case Study
Tuesday, February 5 | 8:30 am – 9:10 am
Jun Fan, Professor, University of Missouri-Rolla
Norm Smith, Design Engineer, Teradata
Jim Knighten, EMI and Signal Integrity Engineer, Teradata
John Andresakis, Vice President of Strategic Technology, Oak-Mitsui
Yoshi Fukawa, President, Techdream
Mark Harvey, Engineer, Sanmina-SCI
Embedding capacitive layers inside the PCB have demonstrated the ability to reduce the number of SMT chip-decoupling capacitors on the PCB surface, as well as greatly improve the performance of the power distribution system. Many systems today utilize this technology, but most public information is limited to data on test vehicles or emulators. This paper utilizes simulated as well as measured product data to compare the performance of the standard design to one using various types of Buried CapacitanceTM layers with a reduced number of SMT decoupling capacitors. A methodology is provided that can be utilized for other designs.
Norm Smith, Design Engineer, Teradata
Jim Knighten, EMI and Signal Integrity Engineer, Teradata
John Andresakis, Vice President of Strategic Technology, Oak-Mitsui
Yoshi Fukawa, President, Techdream
Mark Harvey, Engineer, Sanmina-SCI






