Stackup: Prepegs and Cores for 12 Layer 1.2mm thick PCB

Engineer asked Dec 13,2022


since there is no standard stackup defined for 12L with 1.2mm PCB thickness I'll need a custom stackup.
Which prepegs and cores can I use for this?

According to the thinnest prepeg is 0.08mm and the thinnest core is 0.2mm.
At 12 Layers I'll need 6x Prepeg and 5x Core.
0.08mm x 6 + 5 x 0.2mm is already 1.48mm and there is no copper yet.
So what other Prepegs and Cores are available?

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