Citi PCB Survey: New Capacity Earliest by 2029, Strong mSAP Demand for Optical Modules
nashnova research
After meetings with three PCB-chain companies, Citi flags that core equipment lead times now exceed 24 months — new capacity cannot come online before 2029, turning early equipment lock-ins into a real competitive moat.
Equipment lead times over two years — what does that mean?
Kinwong (景旺電子) confirms that LDI — laser direct imaging, a machine that projects circuit patterns directly onto the board — along with laser drilling machines and lamination presses all carry lead times exceeding 24 months.
This means → any maker that only now announces expansion cannot ship before 2029, a full product cycle behind rivals that locked in equipment earlier.
Citi's takeaway is blunt: "effective capacity" is worth far more than "expansion announcements" — machines on the floor beat plans on a slide deck.
Why are price hikes sticking?
Guanghe Technology (廣合科技) began customer negotiations in April; increases landed between May and July. Kinwong likewise passed raw-material cost increases downstream from May–June.
Customer acceptance has been high for a practical reason: PCB accounts for a small share of the end-product bill of materials (BOM — the total parts-cost sheet for a device), so a modest hike barely moves total system cost.
Kinwong's legacy-business gross margin has climbed from roughly 16%–17% back above 20%, with some products near all-time highs. In plain terms = the price hikes are not just negotiated — they are already showing up on the income statement.
Copper-clad laminates still rising — has the price cycle peaked?
CCL — copper-clad laminate, the most critical PCB raw material, a semi-finished sheet of copper foil bonded to resin — has seen another round of price increases recently.
PCB makers expect prices to remain elevated through 2027.
This means → near-term cost pressure will not ease, but for makers that have already repriced, high copper actually reinforces the rationale for their own price hikes.
Optical-module mSAP — how big is this new opportunity?
mSAP — modified semi-additive process, a PCB manufacturing technique that can etch extremely fine traces — is the key process for optical-module PCBs. An 800G module board typically has 12 layers requiring 5–6 mSAP steps; a 1.6T board needs one more.
In terms of manufacturing difficulty, optical-module PCBs sit between BT substrates and ABF substrates, with line width/spacing of roughly 20–35 µm — far finer than standard PCB, but not yet at the top-end IC-substrate tier.
Capex-to-revenue ratio for an mSAP line is roughly 1:3, on par with AI PCB lines. Put simply = every dollar invested in the line can generate about three dollars of revenue — a solid payback profile.
Who is furthest ahead?
Kinwong says its mSAP technology leads competitors, with stable 800G PCB yield already above 85%. Customers have reserved its mSAP capacity, and the company targets a spot among the top-two global optical-module PCB suppliers.
Han's Laser (大族數控) notes that 1.6T mSAP processing is the clearest volume application for ultrafast-laser equipment today; management sees 2027 demand running well above prior expectations.
At Guanghe Technology, only about half of July's monthly orders have been fulfilled, and firm purchase orders already stretch to late 2026 and early 2027. This reflects lengthening demand visibility, not a short-term spike.
Can first-mover advantages actually be realized?
Whether equipment lead times continue to stretch is the first checkpoint — if lead times start to shorten, latecomers get a window to catch up.
Whether mSAP yields can hold steady in mass production is the second key variable: hitting 85% in the lab and sustaining 85% across high-volume shipments are two different things.
In plain terms = the current lead is real, but the question of "how long it lasts" will not be answered until capacity ramps en masse around 2027.
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