
TSMC Names Lasers, Fiber, Connectors and Test as Co-Packaged Optics Scaling Constraints
Taiwanese trade press report TSMC's K.C. Hsu cited four constraints on CPO deployment. TrendForce still sees engine yield, fabrication and packaging as limits.
The technologies still finding their category - the frontier beyond the frontier.

Taiwanese trade press report TSMC's K.C. Hsu cited four constraints on CPO deployment. TrendForce still sees engine yield, fabrication and packaging as limits.

NVIDIA's release formalizes the NVL72 basis Musk disclosed August 4. That evening, SpaceX's two public hosts served different AI1 spec sheets.
Open Compute Project's 294-page vision assigns an owner to each layer of the co-packaged optics stack, except one: photonic die testing, which the paper itself labels unowned.

A worked example budgets 259 W of solar output per square meter of tile, implying a similar heat load. SpaceX's draft AI1 makes the opposite supercomputing bet: hotter liquid cooling and pumps.

TSMC says packaging capacity is limiting customer growth. The $874 million Commerce proposes funds the bottleneck after this one.

Uppsala researchers propose streaming LLM weights through spooled fiber instead of HBM. The design is a sketch; the DRAM market that provoked it is very real.

NVIDIA specs every MGX rack (GB200, GB300, Vera Rubin) for 45°C inlet water. Warm-water cooling is a decade old; the default on 200 kW-class racks is what's new.

Since Starcloud flew the first H100 last November, SpaceX, Blue Origin, Starcloud, and a five-month-old startup have filed with the FCC for constellations totaling more than a million satellites. The physics hasn't moved as fast as the paperwork.

HBM4 doubles bandwidth per package and still can't share capacity across a rack. The two architectural answers, pooled DRAM over CXL and compute pushed next to memory, are at very different stages of readiness.

By April 2026, Amazon's random-graph fabric had become the default for most new AWS datacenters. The efficiency claims behind it are still Amazon's own, with no independent benchmark yet.

At Computex 2026, Wiwynn and eight ecosystem partners showed a full optical scale-up rack built around compute-side optics. It is a useful moment to separate two technologies the supercomputing industry keeps filing under one acronym.