What Lux Semiconductors does

Lux Semiconductors is a privately held US semiconductor packaging company founded in 2017 and headquartered in Albany, New York. It develops and manufactures crystalline thin-film metal substrates and interposers — sold under the Gallox sub-brand — for advanced chip packaging, targeting defense electronics and emerging commercial applications in AI, autonomous vehicles, and advanced healthcare. Its core technology, branded Smart Metal Substrate, is built around patented Coaxial Through Metal Vias (TMV) in which the metal package itself functions as an electromagnetic shield for signal lines, eliminating cross-talk and enabling low-loss power delivery networks to be patterned directly in the substrate. The substrates are engineered as a drop-in replacement for organic and glass substrates, offering 100x higher thermal conductivity than glass and 13x greater warpage resistance than organics, and are compatible with mainstream EDA flows such as Cadence APD and Siemens XPD.

The company's business model is hardware sales of custom metal substrate and interposer designs, with quote-based engagement and design-transfer services. Go-to-market is direct enterprise field sales, initially seeded through the Air Force Research Laboratory (AFRL) co-development relationship and named DoD end-market validation from Lockheed Martin Advanced Technology Laboratories. Manufacturing is conducted domestically in the United States, a positioning emphasized for defense and government-adjacent buyers. The company has raised approximately $6.5 million cumulatively across NSF grants, Techstars, and venture rounds led by Ultratech Capital Partners (2023) and a 2025 financing, alongside a strategic investment from Lockheed Martin Ventures. Lux operates with 1-10 employees, co-founded by Shane McMahon (CEO) and Graeme Housser (CTO), both Ph.D.s in Nanoscale Engineering, and lists Cornell University and NSF among its research collaborators.

Name

Lux Semiconductors

Legal name

Lux Semiconductors, Inc.

Website

https://luxsemiconductors.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

1–10 employees

Short description

Lux Semiconductors manufactures proprietary metal substrates and interposers (Gallox) for advanced chip packaging, enabling true 3D system-in-package designs for US defense, AI, autonomous vehicle, and advanced healthcare customers.

Ownership category

akta.pro rank

Product category

Semiconductor Packaging

NAICS

Electroplating, Plating, Polishing, Anodizing, and Coloring (332813), Coating, Engraving, Heat Treating, and Allied Activities (33281)

SIC

Semiconductors & Related Devices (3674), Miscellaneous Chemical Products (2890)

akta.pro primary industry

Thermal Management & Heat Dissipation Solutions (TIMs, Lids, Heat Sinks) (HDAHADAG)

akta.pro secondary industry

Leadframes & Package Interconnect Materials (HDAHADAF)

Keywords

• Advanced chip packaging
• Metal substrates
• Semiconductor interposers
• System-in-package
• Thin-film semiconductors

Headquarters

HQ city

Albany

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Operations, Personnel, Supply Chain, Marketing or Sales

Revenue model

1. Metal Substrates and Interposers: Sale of proprietary metal substrates and interposers for system-in-package (SiP) designs. These are physical hardware components that serve as drop-in replacements for conventional glass and organic substrates.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Lux Semiconductors develops and manufactures proprietary metal substrates and interposers for advanced semiconductor packaging. Its Smart Metal Substrate technology, branded Gallox, provides drop-in replacement substrates for system-in-package (SiP) designs with patented Coaxial Through Metal Vias (TMV) that deliver electromagnetic shielding, 100x higher thermal conductivity than glass, and 13x greater warpage resistance than organic substrates.

Product overview

Lux Semiconductors offers a unified product line centered on its Smart Metal Substrate technology, specifically Gallox-branded metal substrates and interposers. This core product enables advanced semiconductor packaging by dramatically improving thermal dissipation and reducing warpage for SiP designs. The company's patented Coaxial Through Metal Vias technology allows the metal package itself to act as an electromagnetic shield. The offering is complemented by design transfer guidelines that help engineers transition from organic to metal substrate designs using standard EDA tools like Cadence APD or Siemens XPD.

Differentiator

Problem solved

Functional benefit

Brands

• Gallox: Brand logo appears on the website; likely associated with the company's product line but no explicit product details provided.

Products and services

• Metal Substrates and Interposers (Gallox)

Quantifiable outcome

• 100x higher thermal conductivity than Glass
• +1 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• UltratechminorOthersShown as a partner logo on the Lux Semiconductors website, indicating a collaborative relationship in the semiconductor equipment or materials space.
• AFRL (Air Force Research Laboratory)coreStrategic or Co-development PartnerLux's breakthrough technology was developed to meet next-generation defense needs with support from AFRL. The technology addresses DoD electronics requirements for enhanced thermal management and high speed signal routing.
• Cornell UniversityminorStrategic or Co-development PartnerShown as a partner logo, indicating an academic or research collaboration relationship with Cornell University's engineering programs.
• NSF (National Science Foundation)minorStrategic or Co-development PartnerShown as a partner logo, indicating research funding or collaborative support from the National Science Foundation.
• TechstarsminorStrategic or Co-development PartnerShown as a partner logo, indicating Techstars accelerator program participation or support for Lux Semiconductors.

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Corning: Corning is developing glass substrates for advanced semiconductor packaging through partnerships with major foundries/IDMs, positioning as a broad incumbent alternative to organic and (competing) metal substrates.
• Ibiden: Ibiden is one of the largest IC substrate manufacturers globally, with deep qualifications at major IDMs/foundries and significant R&D investment in next-generation substrate materials competing with Lux.
• Samsung Electro-Mechanics: Samsung Electro-Mechanics is a large-scale IC substrate supplier embedded in the Samsung/Qualcomm/AMD supply chain, representing the high-volume incumbent Lux must displace in commercial packaging wins.
• AT&S: AT&S is a major European substrate and PCB manufacturer investing in advanced IC substrates for high-performance compute packaging, with overlapping customer set in AI/HPC packaging.
• Unimicron Technology: Unimicron is a top-tier global IC substrate manufacturer with established packaging-substrate product lines; a relevant comparable for the manufacturing-scale and customer-qualification profile Lux is targeting.
• Intel (Substrate/Glass Core Program): Intel has publicly driven glass-core substrate adoption for advanced packaging via its foundry roadmap and ecosystem partners, positioning itself as a major demand-side architect for substrate technology choices that compete with Lux's metal platform.
• Shinko Electric Industries: Shinko is a leading supplier of organic flip-chip substrates and plastic interposers for advanced packaging at major foundries, representing the incumbent baseline that metal/glass alternatives must displace.

Emerging players

• NGK Insulators: NGK has publicly invested in ceramic/glass substrates for advanced semiconductor packaging — an adjacent emerging alternative that targets the same thermal and warpage pain points Lux addresses.

Direct peers

• Absolics: Absolics (an SKC subsidiary) is building glass-core substrates for advanced packaging — directly competing with Lux's metal substrates on thermal management, warpage, and 3D SiP enablement at the OSAT/foundry customer base.

Others

• Ultratech (Veeco / Ultratech Capital Partners): Ultratech (now part of Veeco) supplies semiconductor packaging equipment and is a disclosed strategic/equipment partner of Lux — relevant as an enabling equipment-side peer in the same advanced-packaging ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds7 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lux Semiconductors