2010－Optimization ESD of RF High-Speed IO Interface－MD Ker

semico_ljj

Optimization on Layout Style of ESD Protection
Diode for Radio-Frequency Front-End and
High-Speed I/O Interface Circuits

Chih-Ting Yeh, Ming-Dou Ker, Fellow, IEEE, and Yung-Chih Liang

IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY, VOL. 10, NO. 2, JUNE 2010

Index Terms—Diode, electrostatic discharge (ESD), layout,
radio-frequency (RF).

semico_ljj

best。。。

Abstract—The diode operated in forward-biased condition has
been widely used as an effective on-chip electrostatic discharge
(ESD) protection device at radio-frequency (RF) front-end and
high-speed input/output (I/O) pads due to the small parasitic loading
effect and high ESD robustness in CMOS integrated circuits
(ICs). This work presents new ESD protection diodes drawn in
the octagon, waffle-hollow, and octagon-hollow layout styles to
improve the efficiency of ESD current distribution and to reduce
the parasitic capacitance. The measured results confirmed that
they can achieve smaller parasitic capacitance under the same
ESD robustness level as compared to the stripe and waffle diodes,
especially for the diodes drawn in the hollow layout style. Therefore,
the signal degradation of RF and high-speed transmission can
be reduced because of smaller parasitic capacitance from the new
proposed diodes.

mtwumtwu

anothr good material fro ESd design

tingyc

good material fro ESd design

mingyulane

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zoulin464646

it is very useful for me

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thank you