Characterization of CMOS on-chip transformer for digital transmission line driver applications

Huang, Chien‐Chang; Chen, Chia‐Kai

doi:10.1109/apemc.2013.7360631

Cited by 1 publication

(1 citation statement)

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“…With newly emerging wireless communication demands, such as 5G, the realization of fully integrated systems with on-chip components is critical to reduce production costs and overall device size. Along these lines, the integration of many passive devices like inductors, capacitors and transformers is very important, since they serve as the fundamental building blocks of many RF integrated circuits (RFICs) and their performance largely affects the overall circuit specifications [1,2,3,4,5,6,7,8]. Fortunately, the evolution of microelectronic process technologies has allowed, to a large extent, the fabrication of active and passive components on the same chip.…”

Section: Introductionmentioning

confidence: 99%

Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication

Bajwa

Yapıcı

2019

Sensors

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On-chip transformers are considered to be the primary components in many RF wireless applications. This paper provides an in-depth review of on-chip transformers, starting with a presentation on the various equivalent circuit models to represent transformer behavior and characterize their performance. Next, a comparative study on the different design and layout strategies is provided, and the fabrication techniques for on-chip implementation of transformers are discussed. The critical performance parameters to characterize on-chip transformers, such as the Q-factor, coupling factor (k), resonance frequency (fSR), and others, are discussed with reference to trade-offs in silicon chip real-estate. The performance parameters and area requirements for different types of on-chip transformers are summarized in tabular form and compared. Several techniques for performance enhancement of on-chip transformers, including the different types of micromachining and integration approaches stemming from MEMS (microelectromechanical systems) technologies are also analyzed. Lastly, the different uses and applications of on-chip transformers are discussed to highlight the evolution of on-chip transformer technology over the recent years and provide directions for future work in this field.

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