3 ms·
If you’re referring to the edges then those are vias. Apple has been stacking PCBs like this since the iPhone X. See step 14 in https://www.ifixit.com/Teardown/
by joshp_ 2y ago
If you’re referring to the edges then those are vias. Apple has been stacking PCBs like this since the iPhone X. See step 14 in https://www.ifixit.com/Teardown/iPhone+X+Teardown/98975 https://www.ifixit.com/Teardown/iPhone+X+Teardown/98975