---
format: "aidr-story-markdown/v1"
id: "4cee47362806a0f933feac0c466392e8bc84980afe76f20379c1ab6ae9ab852f"
canonical_url: "https://aidr.today/4cee4736?lang=en"
title: "AI Substrate Lead Times Hit 14 Months, Forcing Commitments Beyond 2029"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-08-27T02:56:02.000Z"
category: "Infra"
topics: ["nvidia","google","chips","infra"]
source_urls: ["https://huggingnews.com/ai/update-ai-substrate-lead-times-hit-14-months-forcing-commitments-beyond-0cef0a5f","https://x.com/SemiAnalysis_/status/2092780027611894235","https://x.com/SemiAnalysis_/status/2092780029293821996","https://x.com/zephyr_z9/status/2092785771979960560"]
summary: "ABF substrate supply is fully booked through 2026 across all six global suppliers, prompting some second-tier makers to auction off available capacity via competitive bidding. Higher layer counts and larger body sizes for new GPU and ASIC platforms are increasing the production line time required per unit, while some customers are now seeking capacity commitments stretching beyond 2029. T-glass and substrate-level CCL remain the primary constraints for 2027 shipments, affecting hardware from Nvidia and Google. Chinese vendors are entering the T-glass market to increase the number of sources from one to more than five. EMC plans to start shipping its own substrate CCL in 4Q26 and intends to double that capacity in 2027 to reduce the industry's reliance on Resonac."
---

# AI Substrate Lead Times Hit 14 Months, Forcing Commitments Beyond 2029

> [Open the canonical story](<https://aidr.today/4cee4736?lang=en>)

**Published:** 2026-08-27T02:56:02.000Z
**Category:** Infra
**Topics:** nvidia, google, chips, infra

## Summary

ABF substrate supply is fully booked through 2026 across all six global suppliers, prompting some second\-tier makers to auction off available capacity via competitive bidding\. Higher layer counts and larger body sizes for new GPU and ASIC platforms are increasing the production line time required per unit, while some customers are now seeking capacity commitments stretching beyond 2029\. T\-glass and substrate\-level CCL remain the primary constraints for 2027 shipments, affecting hardware from Nvidia and Google\. Chinese vendors are entering the T\-glass market to increase the number of sources from one to more than five\. EMC plans to start shipping its own substrate CCL in 4Q26 and intends to double that capacity in 2027 to reduce the industry's reliance on Resonac\.

## Sources

- [Story source](<https://huggingnews.com/ai/update-ai-substrate-lead-times-hit-14-months-forcing-commitments-beyond-0cef0a5f>)
- [Story source](<https://x.com/SemiAnalysis_/status/2092780027611894235>)
- [Supporting source](<https://x.com/SemiAnalysis_/status/2092780029293821996>)
- [Supporting source](<https://x.com/zephyr_z9/status/2092785771979960560>)