glizzyguzzler

It’s just off the map, but the state to the right of Pennsylvania is New Jersey

Si, siempre

Facts, but they don’t got an island in the Ohio river 🤷‍♀️

Do not worry, I never assumed you gave even one shit about Michigan. I assumed you gave two, maybe three, shits about essential geographic context in the art of cartography

Valid criticism, but out of the scope for the map. Maybe in the next edition, if my publisher funds it

This map is fully accurate, Michigan is just off the map

Yes, as noted in the original post Toledo is now in the correct location

Hey I don’t make the rules, I just report the geography

Tbh this is just wrong, it’s clear Ohio is larger than Canada even if you include their puppet state (Toronto).

Clearly if New York wanted instigate intrastate warfare they would conduct a lightning assault through Canada and catch Ohio by surprise, who would likely be thinking that their Appalachian Line on the border with New York would keep them safe. Canada’s so small they could cross it in hours!

Our guiding light in these dark times

Tiger, you’re very similar to many of the semiconductor EEs I know :) and I mean that in a teasing-but-you-know-cause-you-work-in-the-industry way. Yeah, we only really care about whiskering in the context of electrical devices. That’s what it’s saying. Read the “Mechanics” section, it tells you nothing about actual electromigration doing it; they describe an E field encouraging metal ions in a fluid to make a reaching whisker and link to electromigration because it technically is “electromigration” making the targeted whisker occur. But IC-style electromigration is not causing the whisker, clearly cause no currents are flowing, which is why I took the time to write the explanation in the first place.

But just because the semiconductor community called it whiskers so it shares the name with the Big Whiskers, does not make the process anywhere close to similar. The current densities that cause absolutely not present for the stress ones, which the wiki article is about.

Tiger I think you're being pedantic, they linked to Whiskers (metallurgy) not Whiskers (electromigration). There is a difference! But it's not super clear cut, which is why I took the time to write about it.

Electrons do not always move at the same speed in a given metal. A lot of things affects mobility, but the E field is very important too. Both things combine so that electrons do not always move at the same speed in a given metal. But you can simplify in an IC world because there you're riding the saturation velocity basically always, which is why I assume you keep claiming that.

I want you to know that your experiences from your education and job are valid - you do deal with whiskers in ICs, not denying that; the fact is that whiskers due to stresses and strains aren't called electromigration which is what the original comment says.

"A similar thing also called whiskers can happen inside ICs and has been a known failure mode for high frequency processors for many years. I work in chip design, and we use software tools to simulate it. It’s due to electromigration and doesn't rely on stresses but instead high current densities."