| 摘要 |
The invention concerns a device for generating a high negative voltage, as is needed in the programming of flash EEPROMs for instance. One advantage of the invention is that substrate control effects are reduced by virtue of the fact that the channel-forming wells of each of the transistors are connected to a terminal on one of the transistors, without the high negative voltage poling the substrate well diode in the forward direction and thus causing a short-circuit to the substrate.
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