Browse > Article

An Integrated LTCC Inductor and Its Application  

Kim Chan-Young (한양대학교 전자ㆍ컴퓨터공학부)
Kim Hee-Jun (한양대학교 전자ㆍ컴퓨터공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.53, no.11, 2004 , pp. 680-686 More about this Journal
Abstract
An integrated inductor using the low temperature cofiring ceramics(LTCC) technology was fabricated. The inductor has Ag circular spiral coil with 16 turns (2-turn x 8-layer) and has a dimension of 11.52mm diameter and 0.71mm thick. For the fabricated inductor, calculation method of inductance was given and it is confirmed that the calculated value is very close to the measured one. Finally as an application of the LTCC integrated inductor to low power electronic circuits, a LTCC buck DC/DC converter with 1.32W output power and 1MHz switching frequency using the inductor fabricated was developed. For the converter the maximum efficiency of about 81% was obtained.
Keywords
LTCC(Low Temperature Co-fired Ceramic); Embedded Passive Element; Integrated Inductor; Multi-chip Module;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sunderarajan S. Mohan, 'The Design, Modeling and Optimization of On-Chip Inductor and Transformer Circuits', 1999
2 Robert Rodriguez, Jhon M. Dishman, 'Modeling of Two-Dimensional Spiral Inductors', lEEE, No.4, pp. 535-541, 1980
3 William B. Kuhn, Noureddin M. Ibrahim, 'Analysis of Current Crowding Effects In Multitum Spiral Inductors', lEEE, No.1, pp. 31-38, 2001
4 T. Sato, T. Inoue, H. Tomita, S. Yatabe, K. Nishijima, Y. Tokai, N. Saito and T. Mizoguchi, '5 MHz Switching Micro DC-DC Converter Using Planar Inductor', IEEE, pp. 485-490, 1996   DOI
5 H.L Chan, K.W.E Cheng, and D. Sutanto 'A Simplified Neumann's Formula for Inductance of Spiral Coil', Power Electronics and Variable Speed Drives Conference, No. 475, pp. 69-73, 2000
6 Frederick W. Grover 'Inductance Calculations', D. Van Nostrand Company, 1946
7 Thompson, 'Inductance Calculation Techniques part II: Approximations and Handbook Methods', Power Control and Intelligent Motion, Dec., 1999