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A comment on Modular Lpddr Memory Becomes a Reality: Samsung Introduces Lpcamm Memory Modules.

Re:Modular Lpddr Memory Becomes a Reality: Samsung Introduce... by eternityforest on Tuesday September 26, 2023 @03:47PM (#37664887)
Glad to see some innovation on the mechanical side and more modularity.

Hopefully they will do the same for memory eventually, although I'd really prefer they just do more RasPi style MicroSD as boot drive systems.

I wonder if the same principle can be DIYed or brought down in at all. If you clamp a flex PCB down with screws, directly face to face on a regular PCB, will it make good enough contact?

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Re:Modular Lpddr Memory Becomes a Reality: Samsung Introduce... by unsung on Wednesday September 27, 2023 @06:27PM (#37682274)
Probably, but I would think you'd need to use a paste stencil to raise the PCB contacts evenly above the solder mask layer since it's not quite flush, or just get the board pre-tinned.
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Re:Modular Lpddr Memory Becomes a Reality: Samsung Introduce... by eternityforest on Wednesday September 27, 2023 @10:50PM (#37684596)
Didn't think of that one, that could definitely be an issue. I suppose if you're DIYing them you could probably just hand tin them, at least with flex PCBs.

Or, if you're doing OneWire based modules, just only use 3 contacts so evenness is less important.

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