Design and Analysis of Spiral Inductors by Genemala Haobijam, Roy Paily Palathinkal

By Genemala Haobijam, Roy Paily Palathinkal

The ebook addresses the serious demanding situations confronted through the ever-expanding instant verbal exchange industry and the expanding frequency of operation because of non-stop innovation of excessive functionality built-in passive units. The demanding situations like low caliber issue, layout complexity, manufacturability, processing fee, etc., are studied with examples and specifics. Silicon on-chip inductor used to be first stated in 1990 via Nguyen and Meyer in a 0.8 μm silicon bipolar complementary steel oxide semiconductor know-how (BiCMOS). because then, there was a huge development within the study at the functionality tendencies, layout and optimization, modeling, caliber issue enhancement suggestions, etc., of spiral inductors and critical effects are mentioned in literature for numerous functions. This publication introduces an effective approach to picking the optimized structure of on chip spiral inductor.

The very important basic tradeoffs of the layout like caliber issue and region, caliber issue and inductance, caliber issue and working frequency, greatest caliber issue and the height frequency can also be explored. The authors proposed an set of rules for actual layout and optimization of spiral inductors utilizing a 3D electromagnetic simulator with minimal variety of inductor constitution simulations and thereby lowering its lengthy computation time. a brand new multilayer pyramidal symmetric inductor constitution can also be proposed during this e-book. Being multilevel, the proposed inductor achieves excessive inductance to sector ratio and consequently occupies smaller silicon area.

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Additional resources for Design and Analysis of Spiral Inductors

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Electron Dev. 48(5), 928–934 (2001) 62. : The modeling, characterization, and design of monolithic inductors for silicon RF IC’s. IEEE J. Solid State Circuits 32(3), 357–369 (1997) 63. : EM-simulation of planar inductor performance for epitaxial silicon processes. Analog Integr. Circ. Sig. Process 30(1), 51–58 (2002) 64. : Analysis, design, and optimization of spiral inductors and transformers for Si RF IC’s. IEEE J. Solid State Circuits 33(10), 1470–1481 (1998) 65. : Optimization of inductor circuits via geometric programming.

A 3-D integral equation-based approach to the analysis of real-life MMICs-application to microelectromechanical systems. IEEE Trans. Microw. Theory Tech. 49(12), 2235–2240 (2001) 14.

17 Inductance of the optimum design of 6 nH inductor as a function of frequency adjacent outer turns will pass through some of the innermost turns, inducing eddy current loops which result in non-uniform current in the innermost turns thereby increasing the effective resistance and hence lowering the quality factor. This eddy current effect can be minimized by increasing the inner diameter and realized with the same inductance of 2–3 turns, but the area will also increase. However, it does not improve quality factor due to the increase in the series resistance as the total length increases with increase in area.

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