maxporter
Junior Member level 2
Hi all,
Small question regarding the ‘R’ curve of polysilicon silicide resistor when sweeping the input voltage from negative to positive. As a result, I get a parabolic curve, negative or positive depending on N+ or P+. After a some searching this apparently what I can expect: there is a (V/L) squared term in the equation. And indeed, length changes the curve. But what puzzles me is that, depending on the length, at a certain negative and positive voltage the curve gets capped. See picture as an example. For small lengths, this in the operating voltage range (e.g. min length -> 300mV). Would this be a normal behavior? If so, what’s the cause and if not, why is it modelled?
Thanks & regards,
Max
Small question regarding the ‘R’ curve of polysilicon silicide resistor when sweeping the input voltage from negative to positive. As a result, I get a parabolic curve, negative or positive depending on N+ or P+. After a some searching this apparently what I can expect: there is a (V/L) squared term in the equation. And indeed, length changes the curve. But what puzzles me is that, depending on the length, at a certain negative and positive voltage the curve gets capped. See picture as an example. For small lengths, this in the operating voltage range (e.g. min length -> 300mV). Would this be a normal behavior? If so, what’s the cause and if not, why is it modelled?
Thanks & regards,
Max