A Digitally Controlled Fully Integrated Voltage Regulator with On-Die Solenoid Inductor with Planar Magnetic Core in 14nm Tri-Gate CMOS

📋 论文概要

本文提出一种数字控制的全集成电压调节器，采用14nm工艺集成了带有平面磁芯的片上螺线管电感，解决了高效宽范围本地供电和快速瞬态响应的问题，适用于细粒度DVFS域。

💡 主要创新点

• 采用数字控制实现快速瞬态响应，支持宽范围电压调节。
• 集成片上螺线管电感器，带有平面磁芯，提高了电流密度和效率，减少了外部元件。
• 在14nm工艺中实现全集成电压调节器，降低了系统成本和面积。

🏷 关键词

📄 原文摘要

efficient and widerange local power delivery and management capability with fast transient response for fine-grain DVFS domains of high power density in complex SoCs. Integration of high-quality power inductors that can support high current density with minimal losses is a major challenge. Integrated buck VR designs with different types of power inductor integration technologies have been reported [1-3]. In [1], planar lateral coupled power inductors with non-planar magnetic cores for higher inductance, quality factor and current density, are integrated on a separate silicon interposer die which is then wirebonded to the VR die on a common BGA laminate. While an interposer die for inductor integration enables small inductor footprint, parasitic impedances

👥 作者与机构

Harish Kumar Krishnamurthy, Vaibhav Vaidya, Sheldon Weng,

Krishnan Ravichandran, Pavan Kumar, Stephen Kim, Rinkle Jain, George Matthew, Jim Tschanz, Vivek De Intel, Hillsboro, OR Fully integrated on-die buck voltage regulators (VR) promise