Talk:P–n diode

Origin

My contributions to this article including the diagrams are largely the same as similar material I contributed to Citizendium in the article Semiconductor diode. Brews ohare (talk) 22:09, 11 December 2011 (UTC)

We've also got diode, p-n junction and perhaps more. Could we not put all the semiconductor physics in one place to give a more coherent and consistent presentation? --Wtshymanski (talk) 15:24, 15 December 2011 (UTC)

This article, which Brews has been bragging on recently, seems like just an inappropriate content fork. The I-V curve figure is much worse than the one in the diode article (I think that one at this wiki is even better, as the change of scale in the middle is very confusing about the shape of the curve). If there's important content here that's not already at diode, that's not obvious. I'd redirect and let editors merge anything new that seems appropriate. Dicklyon (talk) 04:16, 3 June 2012 (UTC)

I'm sympathetic to both Wtshyanski's and Dicklyon's comments. The junction model/physics should be in p–n junction article. There could be a p–diode article that covers die/mesa/planar, but that content could be developed in the diode article until large enough to split off. In any event, this article only mentions mesa in the lead. Static characteristics addressed elsewhere, but switching time not addressed in other two articles. Diode modeling may be another place to merge. Merge most of this material to p–n junction. Glrx (talk) 03:10, 8 June 2012 (UTC)

I agree. How about the following:

• I guess that mesa and planar diode constructions would be applicable to all sorts of solid state devices for preventing edge breakdown. Merge to diode or even a more general semiconductor fab article, though I'm not aware of any.
• Merge band diagrams to p-n junction, which really deserves to have some nice band diagrams (and I like Brews' graphics).
• Depletion layer capacitance seems to be a depletion layer property. The diffusion capacitance also appears to be associated with depletion layer quantities. I would say that depletion layer deserves some qualitative discussion of capacitance, which sees use in capacitance voltage profiling and varactor. Already there is some capacitance discussed in diode modelling.
• The transient response is for sure a generic model for diodes. Merge to diode modelling.

--Nanite (talk) 15:22, 22 June 2013 (UTC)

Terrible picture

I think we should find a better picture than the image "Nonideal p–n diode current-voltage characteristics." Real diodes don't have I-V curves that look like that. Geoffrey.landis (talk) 23:36, 24 January 2022 (UTC)

What is I_S and R_S in transient response

In P–n diode § Transient response, there is a schematic and equation currently with $I_{\text{S}}$ and $R_{\text{S}}$. Those were never defined in this article, nor can I see the actual source that points to, so I added a clarification needednote. What specifically are those? In article Shockley diode equation, $I_{\text{S}}$ is reverse saturation current, but I'm not sure what it is here and if it maybe should use a different name so doesn't conflict with the standard labelling for reverse saturation current. Em3rgent0rdr (talk) 21:11, 19 January 2023 (UTC)

I'm thining from looking at the norton equivalent image that they're the norton-equivalent current and resistance. In which case I would suggest to follow the notation in Norton's theorem and call them $I_{\text{no}}$ and $R_{\text{no}}$ for consistency. Then we can reserve $I_{\text{S}}$ to be specifically for reverse saturation current. Em3rgent0rdr (talk) 00:12, 20 January 2023 (UTC)

In addition to that name change, I also think I will change $r_{\text{D}}$ to capital $R_{\text{D}}$ for consistency (usually resistances are capitalized...don't know why it is lowercase). Em3rgent0rdr (talk) 06:07, 22 January 2023 (UTC)