Source: https://commons.wikimedia.org/wiki/File:ESP32-Dieshot.jpg
It's interesting how they are able to fit some much in a small space considering most of it appears to be memory.
A die shot of an ESP32
Source: https://commons.wikimedia.org/wiki/File:ESP32-Dieshot.jpg
It's interesting how they are able to fit some much in a small space considering most of it appears to be memory.
7 Comments
alcoholicorn@lemmy.ml · 6 pts · 2y
What are the octagons?
duckythescientist@sh.itjust.works · 7 pts · 2y
Inductors! They are being used for the RF stuffs (and maybe some clock PLLs).
scarilog@lemmy.world · 2 pts · 2y
Had no idea you could put inductors ON the die, but in hindsight, I guess there's no reason why not.
~8.5mm^2 of pure magic as far as I'm concerned.
duckythescientist@sh.itjust.works · 5 pts · 2y
Most of it appears to be an upper metal layer. You can't tell that that's memory from this view.
chaospatterns@lemmy.world · 1 pts · 2y
Interesting. I guess I assumed it was memory given how consistent it was. Thanks for clarifying.
UraniumDonut@lemmy.world · 3 pts · 2y
A dude who took a similar picture also has some more pics where they removed the top layer of the RF circuit allowing you to look inside
https://electronupdate.blogspot.com/2018/08/espressif-esp32-teardown.html?m=1
YiddishMcSquidish@lemmy.today · 1 pts · 1y
I'm curious, other than the obvious radio section, which are memory sectors and which are computational? If you know. Or is the memory on a separate die?