3 ms·
It could be done simply with Pogo pins, or like for cpus a long time ago, ZIF sockets
by csdvrx 5y ago
It could be done simply with Pogo pins, or like for cpus a long time ago, ZIF sockets
- mschuster91 5y agoZIF sockets likely would be extremely challenging in terms of mechanical integrity at high pin density and EMF radiation hardening. Not worth the effort, sadly.
- joe_guy 5y agoI believe one issue with all of those is they go through all layers of the PCB. Not sure if surface mount sockets exist?
- csdvrx 5y agoThink in 3D: I never said the Pogo should be under the chip in one 2d plane. They could be on the sides at an angle, and the chip in a "hole" cut in the PCB
- jacquesm 5y agoThat would probably not work, those chips have ground planes under them for cooling purposes.
- csdvrx 5y agoRAM remains passively cooled to this day, so some thermal pads diffusing the heat to the metal case might be enough
- joe_guy 5y agoI'm having difficulty picturing this. Can you point to an example? What's the reliability like on a socket like that to a decade of bumps?
- starky 5y agoI don't think they are available as standard components, but there are companies out there that make sockets for mounting DRAM chips to allow for debugging.