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NBS Research #003SemiconductorsApril 2026

Advanced Packaging Economics

Where value migrates when transistor scaling slows

Monochrome macro photograph of a patterned silicon wafer

Executive Summary

Packaging has moved from a back-end cost centre to a front-end performance lever. That shift changes who captures margin across the chain, and it does so faster than reported segment disclosure reveals.

Key Findings

  1. 01Capacity, not capability, is the binding constraint on advanced packaging output in the near term.
  2. 02Substrate supply concentration creates a bottleneck with pricing power disproportionate to its revenue share.
  3. 03Yield learning curves in packaging are steeper and shorter than in front-end lithography.

Key Charts

Figure 1

Illustrative share of system performance gain by source

% of gain

78

2016

66

2019

52

2022

41

2025

37

2026E

Thesis

Scaling economics have inverted

The cost per transistor curve has flattened, and the marginal cost of an additional node has risen. When the front end stops delivering free performance, system designers buy it elsewhere — in interconnect density, in memory proximity, in thermal budget.

Valuation & Analysis

Who keeps the rent

Rent accrues to the participant holding the scarce, hard-to-replicate step. In this chain that has been lithography for two decades; it is now shared with substrate and packaging capacity holders whose replacement cost and lead times are underappreciated.

Risks

  • Capacity additions currently under construction could normalise pricing faster than expected.
  • Demand for accelerated compute is concentrated in a small number of buyers.
  • Technology substitution could relocate the bottleneck again within a single cycle.

Conclusion

The correct question is not which company makes the best chip, but which step in the chain cannot be duplicated within the investment horizon.

Disclosure and disclaimer

North by South Research is an independent research publisher. This report is independent investment research produced for information and educational purposes. It is not investment advice, not a personal recommendation, and takes no account of any reader's objectives, circumstances or risk tolerance.

All forecasts and valuations depend on assumptions that may prove wrong, and valuation outputs are highly sensitive to the discount rate and terminal assumptions used. Market data may become stale. Readers should conduct their own analysis and, where appropriate, seek professional advice. Past performance is not a guide to future returns and the value of investments can fall as well as rise.

North by South Research is not a regulated investment firm and does not manage money, hold client assets or provide personalised advice. No position is disclosed because none is held.

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