SpaceX and Tesla's Terafab eyes 2028 for volume chip production

Elon Musk has set a target date of 2028 for Terafab, the semiconductor manufacturing venture jointly owned by SpaceX and Tesla, to begin producing chips at volume. The timeline represents an ambitious push by two of the world's most capital-intensive companies to build domestic chip-making capacity and reduce their dependence on external suppliers for the semiconductors that power everything from rockets to electric vehicles.

Terafab's existence itself signals a shift in how major technology companies are approaching a critical vulnerability. Both SpaceX and Tesla consume enormous quantities of specialized chips—processors, power management systems, radiation-hardened components for space applications. Historically, they have relied on established semiconductor manufacturers and foundries to supply these parts. The joint venture suggests that reliance has become untenable, either because of supply constraints, cost, or the need for custom silicon that existing suppliers cannot or will not produce at the scale and specifications required.

The 2028 target is not a casual estimate. It anchors a multi-year engineering and capital commitment. Building a semiconductor fabrication plant—a foundry capable of volume production—requires billions of dollars in equipment, real estate, skilled labor, and process development. The timeline implies that Terafab has already begun site selection, hiring, and design work. Reaching volume production in two years means the facility must be operational and ramping through 2027, with yields and quality climbing toward commercial viability by the target date.

For SpaceX, the stakes are particularly high. The company manufactures Starlink satellites by the thousands and is building the Starship launch system, both of which demand chips that can withstand radiation and extreme thermal cycling. A domestic supply chain for these components would insulate SpaceX from geopolitical risk and supply disruptions. For Tesla, the calculus is different but equally compelling: the company produces over a million vehicles annually, each containing dozens of semiconductors. Control over chip supply translates directly to control over production schedules and costs.

The venture also sits within a broader U.S. policy context. The CHIPS Act and related legislation have created incentives for domestic semiconductor manufacturing, framing chip production as a matter of national security and economic resilience. Terafab's success by 2028 would contribute to that goal while simultaneously solving a private supply-chain problem. The two objectives align neatly, though the venture remains a private undertaking with its own commercial imperatives.

What remains unclear is the scope of Terafab's initial production. Volume production can mean different things—thousands of units per month, or millions. The types of chips the facility will manufacture, the process nodes it will target, and whether it will serve external customers or remain captive to SpaceX and Tesla are not yet public. These details will shape whether 2028 marks a genuine inflection point in U.S. semiconductor independence or a more modest step forward by two companies solving their own supply problems.

The announcement carries weight because Musk has a track record of setting aggressive timelines and, often enough, meeting them—though rarely on the original schedule. Terafab's 2028 target will be tested against the realities of construction, equipment procurement, hiring, and the inherent unpredictability of bringing a new manufacturing process to scale. The next two years will reveal whether the venture is on track or whether the date will slip, as such projects often do.