GlossaryHardwareIntermediate

Fab

Also written: fabrication plant

A factory for making computer chips, also called a semiconductor fabrication plant.

In plain terms

A fab is a factory where computer chips, also known as integrated circuits, are made. These chips are the brains of almost all modern electronics, from smartphones to supercomputers.

Think of it like a highly specialized bakery. Instead of flour and sugar, a fab uses silicon and complex chemicals. It uses incredibly precise machines to etch tiny patterns onto silicon wafers, creating millions of microscopic transistors that perform calculations.

The expert version

A fabrication plant (fab) is a specialized industrial facility where integrated circuits (ICs) are manufactured. The process involves photolithography, etching, deposition, and doping to create intricate patterns of transistors and other electronic components on semiconductor wafers, typically made of silicon.

Fabrication requires extreme precision, cleanroom environments to prevent contamination, and multi-billion dollar investments in equipment. The complexity and cost of building and operating modern fabs are significant barriers to entry in semiconductor manufacturing.

Why it matters now

Semiconductor fabrication plants, or fabs, are crucial for producing the advanced chips that power AI models. Recent news highlights efforts to build new fabs, including orbital ones, to meet the growing demand for AI hardware. This focus on chip manufacturing capacity is directly linked to the expansion and development of frontier AI.

Where it shows up 1 items, newest first
How each company uses it
xAI Grok
xAI's partner Besxar is involved in building an orbital semiconductor factory, indicating a potential future need for advanced chip production capabilities relevant to AI development.
Related terms

integrated circuitsemiconductorASICGPUAI hardwarechip manufacturing

Often confused with
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Origin

The term 'fab' is a common abbreviation for 'fabrication plant,' a term used in the semiconductor industry to describe the facility where chips are manufactured. The concept has been central to the electronics industry since its inception.

Try this about 5 minutes

You can see the results of fab work by looking at the chips inside your computer or smartphone. Search online for images of 'silicon wafer' to see the large discs that go into a fab, and 'integrated circuit' to see the tiny chips that come out.

Try it: Playbook entries that use thisPlaybook →

The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.

Questions people ask

What is the main product of a fab?
A fab produces integrated circuits, also known as microchips or semiconductors, which are the fundamental components of electronic devices.
Why are fabs so expensive to build?
Fabs require extremely specialized, high-precision equipment, ultra-clean environments, and complex manufacturing processes, all of which contribute to their multi-billion dollar construction costs.

First seen on Subvolts Sep 9, 2026. Updated Sep 16, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.