SEMI Investment Act
- Sponsor
- Rep. Fitzpatrick, Brian K. [R-PA-1]
- Committees
- Ways and Means Committee (primary)
- Last action
- Nov 17, 2025
Bottom line
This bill aims to bolster the domestic semiconductor supply chain by extending a key tax credit and broadening its scope to incentivize investment in the manufacturing of essential semiconductor components and materials.
What it actually does
This bill amends the Internal Revenue Code of 1986 to extend the advanced manufacturing investment credit (Section 48D) from its current expiration date of December 31, 2026, to December 31, 2031. Crucially, it also expands the definition of an "advanced manufacturing facility" to explicitly include facilities that primarily manufacture "semiconductor materials," providing detailed statutory definitions for both "direct production material" and "indirect production material" essential for semiconductor fabrication. The bill further mandates the Secretary of the Treasury, in consultation with the Secretary of Commerce, to publish an annual list of qualifying materials and establish a petition process for materials not yet included.
Proponents argue
Proponents argue that extending and expanding this credit is crucial for strengthening the U.S. semiconductor supply chain, reducing reliance on foreign sources, and enhancing national security and economic competitiveness. They emphasize that a robust domestic semiconductor ecosystem requires not just chip fabrication, but also a secure supply of the specialized materials and equipment needed to make them, making this bill a vital step in comprehensive supply chain resilience.
Opponents contend
Opponents might argue that such tax credits represent corporate welfare or an inefficient use of taxpayer money, potentially distorting markets. They could question the necessity of extending the credit for an additional five years, suggesting that the initial CHIPS Act incentives are sufficient, or that the expanded definitions could lead to unintended beneficiaries or administrative complexities that outweigh the benefits.
The bill is very short and can be read quickly, allowing ample time for evaluation and understanding of its provisions.
Section 2(b)
Extension of Advanced Manufacturing Investment Credit Period
This provision extends the eligibility period for the advanced manufacturing investment credit, which provides a tax incentive for investments in certain manufacturing facilities. Specifically, it changes the sunset date in Section 48D(e) of the Internal Revenue Code from December 31, 2026, to December 31, 2031. This means that new advanced manufacturing facilities, particularly those related to semiconductors, whose construction begins after the original 2026 deadline but before the new 2031 deadline, will still be eligible to claim the tax credit.
Supporters argue
Supporters argue that a longer credit period provides greater certainty for capital-intensive projects, encouraging more sustained investment in domestic advanced manufacturing, which is critical for national security and economic resilience in the semiconductor sector.
Critics contend
Critics might contend that extending the credit for an additional five years is an unnecessary subsidy, especially if the initial incentives were intended to jumpstart the industry and should not become a permanent fixture, arguing it adds to the national debt without clear additional benefits beyond the original timeframe.
Tradeoffs
This provision balances the desire for sustained domestic manufacturing investment and supply chain resilience against the cost to federal revenue and potential market distortions from prolonged subsidies.
Section 2(a) amending Section 48D(b)(3)
Expansion of 'Advanced Manufacturing Facility' Definition to Include Semiconductor Materials
This provision broadens the scope of what qualifies as an "advanced manufacturing facility" for the purposes of the tax credit. Previously, the credit primarily targeted facilities manufacturing semiconductors and semiconductor manufacturing equipment. This amendment explicitly includes facilities whose primary purpose is the manufacturing of "semiconductor materials." This expansion aims to cover the raw and processed materials, such as specialized chemicals, substrates, and packaging components, that are foundational to the production of semiconductors, thereby incentivizing investment across a wider segment of the supply chain.
Section 2(a) amending Section 48D(b)(3)(B)
Detailed Definitions for Direct and Indirect Semiconductor Production Materials
This section provides extensive and specific definitions for what constitutes "direct production material" and "indirect production material" within semiconductor manufacturing. Direct materials are those primarily used for and physically incorporated into a finished semiconductor, such as silicon substrates, thin films, and packaging materials. Indirect materials are specialized materials primarily used in the production, testing, inspection, or packaging process but not physically incorporated, including process chemicals, photoresists, cleaning agents, and testing materials. These detailed lists aim to provide clarity on which specific materials qualify for the advanced manufacturing investment credit.
Section 2(a) amending Section 48D(b)(3)(B)(iv)
Administrative Process for Identifying and Petitioning for Semiconductor Materials
This provision establishes an administrative mechanism to ensure the list of qualifying semiconductor materials remains current and responsive to industry needs. It mandates the Secretary of the Treasury, in consultation with the Secretary of Commerce, to publish an initial list of qualifying direct and indirect production materials within 180 days of the bill's enactment, and annually thereafter. Furthermore, it creates a petition process, allowing taxpayers to request a determination from the Secretary on whether a material not yet on the official list qualifies for the credit, providing a pathway for new or overlooked materials to be included.
This sub-clause explicitly excludes any material from being considered an "indirect production material" if it has a generic use and is predominantly used in applications other than semiconductor manufacturing. This prevents the tax credit from applying to widely used industrial materials that are not specialized for semiconductor production.
Section 2(a) amending Section 48D(b)(3)(B)(iii)(III)
Why it matters:This is standard legislative practice for refining definitions and preventing unintended scope creep. It serves as a technical clarification to ensure the credit is narrowly targeted, rather than an evasive maneuver.
Case for: This exclusion ensures that the tax credit is narrowly targeted to genuinely specialized semiconductor materials, preventing general industrial chemicals or components from qualifying. This maximizes the impact on the intended sector, conserves federal funds, and prevents the credit from subsidizing products that would likely be manufactured domestically regardless.
Case against: Some might argue that even generic materials, if proven to be critical to the semiconductor supply chain in specific contexts or if their domestic production is strategically important, should not be automatically excluded. This exclusion could limit flexibility or inadvertently overlook niche but essential inputs that are technically 'generic' but strategically vital.
Estimated impact: Prevents potentially billions in tax credits from being claimed by manufacturers of widely used industrial products, focusing the incentive on highly specialized inputs directly relevant to semiconductor manufacturing resilience.