SEMI Investment Act

The SEMI Investment Act expands a federal tax credit for businesses investing in semiconductor manufacturing facilities. It defines qualifying facilities as those primarily producing semiconductors, semiconductor equipment, or semiconductor materials - including both direct materials (like silicon substrates physically incorporated into chips) and indirect materials (such as chemicals and equipment used in manufacturing but not in the final product). The bill requires the Treasury Department, in consultation with Commerce, to publish a list of qualifying materials within 180 days of enactment and allows companies to petition for material inclusions not on the list. This credit applies to property placed in service after the bill's enactment, aiming to incentivize domestic semiconductor supply chain investment.