Issue link: https://iconnect007.uberflip.com/i/1515637
42 DESIGN007 MAGAZINE I FEBRUARY 2024 Feature Article by Cody Stetzel CADENCE DESIGN SYSTEMS Decoupling capacitors are the first place for systems designers to start building digital sys- tems with sufficient power integrity. While decoupling/bypass capacitors are still a stan- dard strategy for ensuring power integrity in single digital ASICs, the entire system power bus also needs to be approached through- out broader frequency ranges. e approach combines power integrity design at low fre- quencies, where discrete caps dominate, and up to GHz frequencies where discrete caps have trouble providing the required capaci- tance. Package designers and chip designers assist the PCB layout engineer by including embed- Embedded Capacitors for PCBs, Chips, and Packages ded capacitors on-chip and in-package to address the entire range of frequencies where decoupling is needed. As more electronics companies take a leading role in chip and pack- age design, there is a need to determine the appropriate amount of capacitance needed to ensure low PDN impedance throughout broad frequency ranges. is article will look at the different types of capacitors that can be used as embedded components in PCBs and in chips/ packages. e various types of embedded capacitors that can be used in PCBs, on a semiconductor die, and in-package are summarized in Figure 1. ere is some overlap among these options for system