Talk:Parasitic capacitance

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Parasitic capacitance of interconnects in integrated circuits[edit]

This section gets deleted because the first paragraph is a misleading paraphrase of an ignorant google-book, and the rest adds nothing to the article. Based on personal experience, integrated circuit designers and their tools were aware of parasitic capacitance long before the 0.5u node. Skunk44 (talk) 05:34, 27 December 2011 (UTC)[reply]

Slight distinction between "parasitic" vs "stray" capacitance?[edit]

I'm reading https://resources.system-analysis.cadence.com/blog/msa2021-what-s-the-difference-between-stray-and-parasitic-capacitance which for "stray" it says:

: The term “stray capacitance” is sometimes used to describe the unintended capacitance within a component, such as capacitance between windings in a coil or between conductors in an integrated circuit.

While for "parasitic" it says:

: often used to describe the unintended capacitance seen in a PCB layout, where the capacitance arises between planes, traces, vias, and other conductors that make up the circuit board.

I don't know how widely this distinction is used. I don't know if it is worth bringing into this article a distinction in these word usages. Em3rgent0rdr (talk) 18:54, 14 March 2024 (UTC)[reply]

One source is not enough to go on. Are there other sources making this distinction? ~Kvng (talk) 19:29, 17 March 2024 (UTC)[reply]

If I google, I can find a lot of blogs making different distinctions, but I'm not sure which is more reliable...I'm not sure that cadence one above is the most common distinction even...more commonly I'm seeing that "stray" is a type of "parasitic" capacitance, e.g. https://www.ourpcb.com/stray-capacitance.html is distinguishing them like:

Parasitic capacitance is unavoidable, excess, and unwanted capacity between 2 or more electrical conductors, which tends to exist due to proximity and typically causes non-ideal electrical circuit behavior.

Stray capacitance, as it's often considered, is a kind of parasitic capacitance. Note that it's the capacity of the conductor to the specific surroundings, which is the sum of the electric conductors in the environment and is inversely weighted by the precise distance to each one of the environmental conductors.

It would be nice if had a good textbook definition for each. But it is also likely that there is no hard distinction and people just use the terms however they like to. Em3rgent0rdr (talk) 00:08, 18 March 2024 (UTC)[reply]

I think it is safer to assume they're synonyms and leave any potential distinction unaddressed. This avoids WP:OR hazards and WP:UNDUE minutia.

As a side note, based on your addition to the lead, I updated our Stray capacitance redirect to point here today. It had been pointing at Capacitance#Stray capacitance which was not wrong but this is more direct. ~Kvng (talk) 00:54, 18 March 2024 (UTC)[reply]

ok. Em3rgent0rdr (talk) 00:56, 18 March 2024 (UTC)[reply]