Recent content by eq1

Thank you for letting us know. I'll email the SkyWater Foundry and tell them they are wasting their time on all the gate variants in the PDK. They will be happy to hear that because it's going to save them a lot of time.

Ummm... what? Who is talking about amplifiers? I'll copy/paste part of the deck for you. Where are the amplifiers? * 1 inverter X1_1 A_1 VGND VGND VPWR VPWR Y1_1 sky130_fd_sc_hd__inv_1 C1 Y1_1 VGND 0.1pF * 2 inverters X2_1 A_2 VGND VGND VPWR VPWR Y2_1 sky130_fd_sc_hd__inv_1 X2_8 Y2_1...

I get the impression you all didn't actually watch the video, which is fine. But I think it's unfair to make these claims in that case. In the video at timestamp 2:50 he shows the layout of inv4 and then inv16 and he clearly shows there are multiple transistors so he's obviously aware some...

That must mean this spice deck has an error. https://github.com/mattvenn/simulate-gate/blob/inverter-stages/simulation.spice It clearly shows signal Y3_16 arriving before Y1_1. Can you please point out the error?

https://github.com/mattvenn/simulate-gate/blob/inverter-stages/simulation.spice This is the spice deck he used in the video to demonstrate 2 and 3 gates in series are faster than 1, can you kindly point out the error? It's following the same steps in the example in the lecture from Weste and...

The presentation is essentially a summary of this lecture [1], but it's done in a very clear and concise manner, and he uses the OpenRoad ASIC flow [2] with the SkyWater130 PDK [3], which means he can give real world examples. It starts with an example which is roughly equivalent to slide 22...

Just saw an interesting video on youtube explaining Logical Effort very nicely. https://en.wikipedia.org/wiki/Logical_effort

AspiringEEngineer, you might want to take a look at this webpage. The experiment is very well written up and quite similar to what you're attempting. I think you could pick up a lot of good pointers from it. https://www.giangrandi.ch/electronics/ringdownq/ringdownq.shtml

But that's not how the definition of a derivative works. The derivative definition uses the limit so one doesn't get to cheat and use only the left or right side for that. To show the derivative is undefined I just need to demonstrate there is a number which breaks the bound at t0. This will...

I'm also new to the term shorting ring. It looks fairly well described here: http://diy-audio.narod.ru/litr/FaradayRingsVoiceCoilImpedance.pdf Basically it looks like the purpose of the ring, at a very high level and ignoring why, is to remove flux from the coil. So ya, that would reduce back...

Earlier we saw: But the "related thread thing" at the bottom just showed me this: https://www.physicsforums.com/threads/transistor-base-collector-current-mystery.169710/post-1329920 Am I getting trolled here or something...

Is the geometry of the collector region not important? It doesn't seem to factor into the explanation. Notice the structure on slide 3. (Jaeger's Microelectronics is also a great text for this) Given your explanation, what is the n+ buried layer for? (you might also notice the emitter volume...

There are 4 variables for three equations so there has to be either no solution or infinitely many. Assuming the matrix is setup correctly (didn't double check it), it can't be inconsistent (because the circuit exists), so it must have infinitely many. If that's true then they're not...

You're right. I was being sloppy with my terminology there. The BJT math you're using is a solution to a very particular set of equations but that solution is not names the Shockley Equation. You're loosing me in this argument. I thought you were trying to prove Ic is not determined by...

You’re wielding Shockley’s equation like it’s an axiom but it’s not. It’s a solution to a very particular system known as a BJT. But, where did Shockley derive it from? And what experimental evidence supports those equations? And what do they have to say about this topic? I would write it...