A Diagnosis Testbench of Analog IP Cores for Characterization of Substrate Coupling Strength

Takushi HASHIDA  Yuuki ARAGA  Makoto NAGATA  

IEICE TRANSACTIONS on Electronics   Vol.E94-C    No.6    pp.1016-1023
Publication Date: 2011/06/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E94.C.1016
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
on-chip diagnosis,  on-chip monitoring,  

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A diagnosis testbench of analog IP cores characterizes their coupling strengths against on-chip environmental disturbances, specifically with regard to substrate voltage variations. The testbench incorporates multi-tone digital noise generators and a precision waveform capture with multiple probing channels. A prototype test bench fabricated in a 90-nm CMOS technology demonstrates the diagnosis of substrate coupling up to 400 MHz with dynamic range of more than 60 dB. The coefficients of noise propagation as well as noise coupling on a silicon substrate are quantitatively derived for analog IP cores processed in a target technology, and further linked with noise awared EDA tooling for the successful adoption of such IP cores in SoC integration.