Impact of package parasitics on crosstalk in mixed-signal ICs

This paper presents an approach for the analysis and the experimental evaluation of crosstalk effects due to current pulses drawn from voltage supplies in mixed analog-digital CMOS integrated circuits. A realistic model of bonding and package parasitics has been derived to study digital switching noise injected through bonding interconnections. Simulations results indicate that disturbances due to switching currents in digital blocks propagate through the substrate and affect analog voltages, thus degrading circuit performance. Test structures have been integrated into a test chip mounted with different technologies, in order to compare the measurements on test chips. Measurements confirm simulation results. Chip-on-board mounting technology has better performance with respect to chip-in-package, due to the reduction of parasitic elements

Gases and organic solvents in urine as biomarkers of occupational exposure: a review

Abstract A brief review of urine analysis in studies of occupational exposure to volatile organic compounds and gases is provided. Analysis of exhaled breath for volatile compounds does not have a long history in occupational medicine. A number of studies has been undertaken since the 1980s, and the methods are well enough accepted to be put forward as biological equivalents of threshold limit values (TLVs) for some volatile organic compounds (VOCs) such as acetone; methanol; methyl ethyl ketone (MEK); methyl isobutyl ketone (MIBK); tetrahydrofurane; dichloromethane. In the last 20 years many scientific articles have shown that the urinary concentrations of unchanged solvents are correlated with environmental exposure and could be used for biological monitoring

GAS AND ORGANIC SOLVENTS IN URINE AS BIOMARKERS OF OCCUPATIONAL EXPOSURE: A REVIEW

Abstract A brief review of urine analysis in studies of occupational exposure to volatile organic compounds and gases is provided. Analysis of exhaled breath for volatile compounds does not have a long history in occupational medicine. A number of studies has been undertaken since the 1980s, and the methods are well enough accepted to be put forward as biological equivalents of threshold limit values (TLVs) for some volatile organic compounds (VOCs) such as acetone; methanol; methyl ethyl ketone (MEK); methyl isobutyl ketone (MIBK); tetrahydrofurane; dichloromethane. In the last 20 years many scientific articles have shown that the urinary concentrations of unchanged solvents are correlated with environmental exposure and could be used for biological monitoring

Occupational exposure of operating-theater personnel to isoflurane and nitrous oxide

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Occuptional polyneuropathy due to cyclohexane [POLINEUROPATIA PROFESSIONALE RIFERIBILE A CICLOESANO]

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Drinking habits and occupational exposure to inhalation anesthetics at low doses

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