COMPANIES · CHIP MFG & PACKAGING

Tower Semiconductor

Tower Semiconductor is an Israel-based specialty contract chipmaker (foundry) that manufactures analog, radio-frequency, sensor, power and silicon photonics chips for other companies in fabs in Israel, the U.S., Japan and Italy.

EnablerChip mfg & packaging
What it does

Tower Semiconductor is an Israel-based specialty contract chipmaker (foundry) that manufactures analog, radio-frequency, sensor, power and silicon photonics chips for other companies in fabs in Israel, the U.S., Japan and Italy.

Why it matters

Its silicon photonics process is used to make the optical chips inside data center transceivers that link AI servers; the company reported its silicon photonics revenue reached a $680 million annual run rate in the second quarter of 2026, up from $180 million a year earlier.

How it makes money

Chip and optical-module companies pay Tower to manufacture wafers using its specialty process platforms.

Geography

Israel (Migdal Haemek)

AI stack position

Chip manufacturing, memory and packaging. The foundries, memory makers, and packaging and testing businesses that physically manufacture AI chips. This is where a chip design actually becomes a real, physical piece of silicon.

Same-layer peers

Same-layer peers share an editorial stack classification; that alone does not establish direct competition.

Connections (4)

Every connection below is tied to a readable source, date, classification and statement of its limits. A company source establishes what that company stated; it does not necessarily provide independent confirmation.

Current relationships (1)

Tower Semiconductor manufactures coherent photonic ICs for Marvell Technology
Manufactures forCurrent
Tower Semiconductor said it has shipped more than five million coherent photonic integrated circuits, made on its silicon photonics platform, to Marvell's global customers.

Source: 2026-06-18 · reviewed 2026-09-26

Evidence: Primary-source statement · Reported operating

Limits: Cumulative shipment milestone; does not disclose revenue, pricing, Tower's share of Marvell's photonics supply, or future volumes.

Tower Semiconductor and Marvell Ship Over Five Million Coherent Photonic ICs ↗

Dated or announced (3)

Tower Semiconductor demonstrated 400G-per-lane silicon photonics with Coherent
Co-develops withDated / announced
Tower Semiconductor and Coherent said they jointly demonstrated 400 Gbps-per-lane data transmission using a silicon modulator in Tower's production-ready silicon photonics process and Coherent's laser.

Source: 2026-03-23 · reviewed 2026-09-26

Evidence: Primary-source statement · Technology demonstration; not a product in production

Limits: Lab demonstration only; does not establish a supply agreement, production timing, or volumes.

Tower Semiconductor and Coherent Demonstrate 400Gbps/lane Data Transmission with a Silicon Modulator in a Production-Ready Sipho Process ↗
Tower Semiconductor collaborates on 1.6T silicon photonics optical modules with NVIDIA
Co-develops withDated / announced
Tower Semiconductor announced it is working with NVIDIA to advance 1.6T data center optical modules on its silicon photonics platform, and NVIDIA's networking SVP said NVIDIA is collaborating with Tower.

Source: 2026-02-05 · reviewed 2026-09-26

Evidence: Primary-source statement · Announced; not confirmed operating

Limits: Announcement of a collaboration; does not establish that Tower manufactures chips for NVIDIA products in volume, or any contract value or exclusivity.

Tower Semiconductor Teams with NVIDIA to Advance AI Infrastructure with 1.6T Data Center Optical Modules ↗
Tower Semiconductor expanded a silicon photonics collaboration with Zhongji Innolight
Partners withDated / announced
Tower Semiconductor said it expanded its silicon photonics collaboration with Innolight for 400G/800G and 1.6T optical modules, and that its new SiPho platform is in production and ramping to high volume.

Source: 2025-03-10 · reviewed 2026-09-26

Evidence: Primary-source statement · Collaboration announced March 2025

Limits: Announcement of an expanded collaboration; does not state Innolight's volumes, value or Tower's share of Innolight's supply, and does not by itself establish that Tower makes chips in volume for Innolight today.

Tower Semiconductor and Innolight Expand their Collaboration and Ramp Volume of Next-Generation SiPho Solutions for AI and Data Centers ↗

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