Deep Dive: Why Wall Street’s HBM4 Models for Micron/SK Hynix vs. Samsung are Structurally Broken (A Multiplicative SCM Risk Model)
**TL;DR (Too Long; Didn't Read)** **The Core Premise:** Wall Street models HBM4/HBM5 market share using independent, additive yields. Physical 3D integration dictates that supply chain risks are **multiplicative, not additive**. **The Alliance Bottleneck:** The TSMC-Hynix/Micron alliance faces cross-border logistical latency …