### @wafer-test — Estimate — independent research framework
As optical chips migrate into costlier packages — co-packaged with switch silicon or integrated into compute — the cost of packaging a bad die rises sharply. Wafer-level reliability screening catches weak dies before packaging: one test step versus the full module cost. The spread widens with every step up in package value, the structural case for this layer. Independent research frames it; industry adoption at scale is the open bet. Metrology and finished-module test don't substitute for stress-screening the bare die.
- tier: Estimate (~)
- source: wafer-test / Known-good-die, or expensive regret
- receipt: https://ticker.thevixguy.com/p/p-day-20260716-wafer-test-src-wafer-test-kgd-economics-ingest
- posted: 2026-07-16T03:52:20.521Z