Eulitha Ships DUV Tools for Laser Production
Swiss lithography firm Eulitha AG reports deliveries of automated tools to foundries making InP DFB lasers for AI data centers.
Updated on Nov. 6, 2026 in Semiconductors
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Eulitha AG has announced deliveries of multiple automated DUV lithography tools to foundries producing InP DFB lasers. The company says its order backlog will fully occupy its production capacity until mid-2028.
Why it matters
DFB lasers depend on high-resolution gratings for precise wavelength selection, and demand has grown rapidly as AI data center expansion drives optical communications needs. Customers reportedly chose Eulitha's photolithography over purchasing tens of e-beam tools, which saved significant costs.
Eulitha's proprietary DTL technology uses DUV photolithography to print the high-fidelity gratings that DFB lasers require for precise wavelength selection. The company has not disclosed throughput, resolution, or pricing figures for the tools in this announcement.
The players
Eulitha AG
Eulitha AG is a Swiss provider of high-throughput optical lithography solutions based near Zurich, known for its proprietary DTL photolithography technology.
The details
Eulitha AG, a provider of high-throughput optical lithography solutions, has delivered automated tools to foundries producing InP DFB lasers used in AI data centers. Multiple DFB manufacturers have used the tools in production for several years, and the company is doubling its production capacity at its location near Zurich, Switzerland.
Timeline
2025: Volume growth in demand for DFB laser tools began.
Q1 2027: Expanded Zurich production capability is scheduled to come online.
Mid-2028: The current order backlog is expected to fully occupy production capacity.
The Tech Race
Eulitha's DUV approach offers an alternative to electron-beam lithography, which has long been the standard method for patterning the fine gratings in DFB lasers. The shift reflects manufacturers' push to scale optical components for AI data center networks while controlling equipment costs.
Faster, more affordable production of DFB lasers can support the optical links that carry traffic inside AI data centers, which shapes the speed and cost of cloud services. The impact on consumers is indirect and depends on how quickly component supply expands.
The takeaway
Demand for the lithography tools that make optical components is tied to the buildout of AI infrastructure, and Eulitha's backlog suggests that buildout will keep its capacity full through 2028. Readers tracking data center networking should watch whether the Zurich expansion arrives on schedule in 2027.
What happens next
Eulitha's expanded production capability at its Zurich site is scheduled to come online in the first quarter of 2027.
Further reading
For more on the chip manufacturing equipment behind this announcement, see our Semiconductors coverage.
Source note: This article includes information reported by AZoOptics.
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