AleksorsistMar 20
Tearing down the world's spiciest e-stim toy
Show threadAleksorsistMar 20
The processor had a really strange thermal pad made up of ferrite material, anyone know why this would be used over a normal style thermal pad? I haven't seen this kind of thermal pad before
Show threadDarrell HarmonMar 20

@aleksorsist It's an EMI absorber like this: https://www.kgs-ind.com/products/emc/ferrite-core/sheets-tiles/sd/

Those big QFPs are awful for EMI with the long bond wires.

EMI Suppression Ferrite Tiles: SD Series - KITAGAWA INDUSTRIES America, Inc.

High performance, sintered ferrite tiles for CPU’s high density. Solid ferrite plates designed for EMI absorption on ICs, CPUs, and bus drives running at high clock speeds.

KITAGAWA INDUSTRIES America, Inc.
Show threadAleksorsist
@dlharmon aaah, makes sense, thanks!
Mar 20 at 6:01pmMastodon for Android