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  1. #1
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    nwell resisor inside n guard ring

    I have a resistor act as an injector that connect directly to external, if I put this nwell resistor inside n-type latch up guard ring, will that be a problem? like parasitic NPN?

    •   Alt19th June 2017, 17:31

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  2. #2
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    Re: nwell resisor inside n guard ring

    It depends on whether you forward bias any junctions.
    Are you planning to take any terminals below substrate
    potential?



    •   Alt20th June 2017, 04:42

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  3. #3
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    Re: nwell resisor inside n guard ring

    I have NMOS inside the lutch up guard ring, its like source to internal commmon mode voltage regulate and not connect to external



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