Title :
Optimization of shield structures in analog integrated circuits
Author :
Yamamoto, K. ; Fujishima, M. ; Hoh, K.
Author_Institution :
Sch. of Eng., Univ. of Tokyo, Japan
Abstract :
The effect of shield structures for local wirings of analog integrated circuits on crosstalk is determined by electromagnetic simulation. The crosstalk of parallel wirings is reduced to -70 dB by the shield above and between the wirings. The optimal shield structure and terminal-impedance dependence are determined by numerical analysis taking terminal impedance as well as wiring length and width into consideration.
Keywords :
analogue integrated circuits; crosstalk; electric impedance; electromagnetic shielding; integrated circuit interconnections; integrated circuit layout; numerical analysis; optimisation; analog ICs; crosstalk; electromagnetic simulation; local wirings; numerical analysis; parallel wirings; shield structures; terminal impedance dependence; wiring length; wiring width; Analog integrated circuits; CMOS technology; Coupling circuits; Crosstalk; Electric potential; Electromagnetic shielding; Magnetic flux; Magnetic shielding; Nonhomogeneous media; Wiring;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205673
