4 ms·
I wonder if they bond it to a copper slab. At that scale, the tiniest amount of PCB flex would probably shatter the die/wafer...
by ohazi 7y ago
I wonder if they bond it to a copper slab. At that scale, the tiniest amount of PCB flex would probably shatter the die/wafer...
- oITAZt 7y agoThey do not. They have "developed [a] custom connector to connect wafer to PCB": https://imgur.com/a/sXxGbiD https://imgur.com/a/sXxGbiD
- ohazi 7y agoI think "cold plate" is the slab.
- oITAZt 7y agoYes, I it is probably a copper slab (they never mentioned), but there is no electrical connection, as the rest of the slides make clear: https://imgur.com/a/Rbd7e4D https://imgur.com/a/Rbd7e4D It just provides a thermal connection for water cooling. The electrical connection is made through the PCB (and probably through a thick copper plate on the opposite side of the PCB)