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- W1997441488 abstract "Three types of GaAs monolithic microwave integrated circuits (MMICs) were RF high temperature accelerated life tested to determine the median time before failure (MTBF). Life testing was performed under the d.c. bias conditions and RF input power levels the MMICs would be expected to use under actual operating conditions. the accelleration condition was to raise the base-plate temperature high enough to result in degradation in approximately 1000 hours at the highest test temperature. Because the MMICs were designed for power applications, the input signal level was large enough to cause approximately 1 dB compression. Device failure was defined as a 20 per cent decrease in output power as measured at 125°C, or room temperature when the temperature control system was turned off. Under these conditions the MTBF extrapolated to a channel temperature of 125°C varied between 8 × 103 hours and 2 × 105 hours depending on the MMIC type. The primary failure mode appeared to be surface leakage currents under the passivation layer." @default.
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- W1997441488 date "1992-01-01" @default.
- W1997441488 modified "2023-09-26" @default.
- W1997441488 title "GaAs MMIC reliability studies" @default.
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- W1997441488 doi "https://doi.org/10.1002/qre.4680080320" @default.
- W1997441488 hasPublicationYear "1992" @default.
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