Silicon & Hardware · Week of November 3, 2026
AI's binding constraints move from chips to memory, credit and land
- HBM Sold Out to 2029 as Memory Shortage Reaches Consumer DRAM"Our clients' demand for HBM is reportedly more than double the volume we can supply," SK Hynix told analysts on its third-quarter call. The company reportedly printed an operating profit near 83 trillion won, roughly se…
- Nvidia Weighs Guaranteeing Debt for Nscale's West Virginia AI Data CenterNvidia weighs playing the cosigner for Nscale’s AI data center in West Virginia | TechCrunch https://techcrunch.com/2026/10/30/nvidia-weighs-playing-the-cosigner-for-nscales-ai-data-center-in-west-virginia/ Nvidia is in …
- Hyperscaler Capex Overtakes Free Cash Flow as Debt Issuance TriplesHyperscaler Capex Passes Free Cash Flow as Debt Issuance Triples: Five companies that once funded the largest capital program in corporate history out of pocket now spend more than they earn, and the gap is being closed …
- China's CXMT Pushes HBM3E at 20-30% Yields Despite Equipment GapsCXMT has shipped two versions of HBM3E to Huawei, Cambricon, MetaX, and Iluvatar CoreX: a standard design and a revised version carrying changes meant to lift manufacturing yield. Only 20 to 30 percent of the chips are u…
- Marvell's $115B Lumentum Bid Bets AI Scaling Hits the Copper WallA 400 Gbps signal dies after about 1.25 meters of copper. Every time you double the per-lane speed, the reach halves. Photonics does not care — it will carry the same signal for kilometers.
Threads we are following
- Whether Samsung and SK Hynix's long-term agreement pricing ranges will be renegotiated if AI demand outruns contracted volumes before 2028.
- Whether Anthropic secures an investment-grade credit rating after its IPO, or must keep relying on partners like Nvidia to back its debt.
- Whether Microsoft will term out its 2026-27 capex in the bond market, given it is the only hyperscaler yet to issue long-dated paper
- Whether CXMT's Shanghai DRAM fab stays on schedule for a 2027 production start as depreciation compresses its margin.
- Whether Nvidia's Rubin bandwidth revisions signal a broader slowdown in the optical interconnect transition, and how Marvell's integration of Lumentum's InP fabs proceeds amid regulatory review.
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