DVT is easy with good specs, for without, Design is impossible.
DVT may include Statistical Analysis such as Process Capability calculations of results vs spec limits or a margin budget with margin verification worked out to meet desired yields.
SunnySkyguy, So learning how to read the best SOC specs then write your own, is the best advice I can give.
the same applies to any design... IC, MCM chipstack, PoP or stacked pck's, or even a rack mounted system........
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Are you thinking of RF, CPU, ANalog/digital I/O , GPU ,Mem.?
Or a like an AMD Quark 1000 ?