SB 1642, the SEMI Investment Act, would expand the federal advanced manufacturing investment tax credit under section 48D of the Internal Revenue Code. The bill broadens the definition of an “advanced manufacturing facility” to include facilities whose primary purpose is manufacturing semiconductors, semiconductor manufacturing equipment, or semiconductor materials. It also defines “semiconductor materials” to cover both direct production materials that are physically incorporated into a finished semiconductor and indirect production materials used in semiconductor production, testing, inspection, or packaging.
The bill provides detailed examples of covered materials. Direct production materials include substrates, thin-film or layering materials, packaging substrates, and bonding or interconnect materials. Indirect production materials include process chemicals, photolithography materials, cleaning and planarization materials, testing and inspection materials, packaging process materials, fluid/gas/wafer-handling materials, and certain wafer-processing chamber materials. It also authorizes the Treasury Secretary, in consultation with the Secretary of Commerce, to identify additional qualifying materials and requires the publication of an annual list of qualifying materials, with a petition process for taxpayers seeking a determination on unlisted materials.
The bill would affect federal tax law by expanding eligibility for the advanced manufacturing investment credit to a wider set of semiconductor-related inputs and facilities. In practical terms, this could increase the number of projects and investments that qualify for the credit, benefiting semiconductor manufacturers and suppliers of specialized materials and equipment. The amendment would apply only to property placed in service after enactment.
The available legislative history shows no committee debate or recorded votes, so there is no documented floor or committee sentiment to assess beyond the bill’s sponsorship. Based on the text and bipartisan cosponsorship, the measure appears aimed at strengthening domestic semiconductor supply chains and encouraging investment in U.S. manufacturing capacity. Because there are no transcripts or votes, there is no recorded opposition in the provided materials.
Any likely points of contention would center on how broadly the credit is expanded, how Treasury will define qualifying materials, and whether the bill could create compliance or administrative complexity through annual lists and petition-based determinations. Stakeholders most directly affected would include semiconductor fabs, equipment makers, chemical and materials suppliers, and taxpayers seeking to claim the credit.
The bill amends section 48D of the Internal Revenue Code to expand the advanced manufacturing investment credit so it applies not only to semiconductor and semiconductor equipment facilities, but also to facilities manufacturing semiconductor materials. It creates detailed statutory definitions for direct and indirect production materials, requires Treasury and Commerce to publish and update qualifying-material lists, and allows taxpayers to petition for determinations on unlisted materials. The change would apply prospectively to property placed in service after enactment, potentially increasing eligibility for federal tax credits across the semiconductor supply chain.
No committee transcript or vote record is provided, so there is no formal recorded sentiment from debate or roll call. The bill’s introduction by multiple senators, including bipartisan cosponsors, suggests generally favorable support for domestic semiconductor manufacturing and supply-chain investment. The text itself reflects a pro-industry, pro-manufacturing policy approach intended to strengthen U.S. semiconductor capacity.
There is no documented opposition in the provided materials, but the main policy questions likely involve the breadth of the expanded credit and the administrative burden of determining which materials qualify. Treasury’s authority to add materials, the exclusion of generic-use materials, and the petition process could all be points of concern for taxpayers, regulators, and competing industries. Any debate would likely focus on whether the credit is targeted enough to support semiconductor manufacturing without overextending tax benefits to broadly used industrial inputs.