#343 SKY130 resistors do not cause thermal noise in ngspice Issue created by hpretl See https://sourceforge.net/p/ngspice/bugs/614 By default,

ngspice

does not simulate thermal noise for behavioral resistors, which are used in the SKY130 model files. Thermal noise can be enabled by adding the parameter

noisy=1

to the respective resistors. This behavior is described in the

ngspice

manual, chapter 3.3.4. As proper thermal noise modelling of resistors is essential for analog/mixed-signal circuit design, please patch the model files accordingly. RTimothyEdwards/open_pdks

@Tim Edwards As the missing thermal noise of the poly resistors is a big issue, could you please implement this fix quickly?