Abstract
In this paper, the reliability of sense-switch p-channel flash is evaluated extensively. The endurance result indicates that the p-channel flash could be programmed and erased for more than 10 000 cycles; the room temperature read stress shows negligible influence on the p-channel flash cell; high temperature data retention at 150 °C is extrapolated to be about 5 years and 53 years corresponding to 30% and 40% degradation in the drive current, respectively. Moreover, the electrical parameters of the p-channel flash at different operation temperature are found to be less affected. All the results above indicate that the sense-switch p-channel flash is suitable to be used as the configuration cell in flash-based FPGA.
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