Invarium

About Invarium

Invarium, Inc. operated in the semiconductor industry, providing specialized electronic design automation (EDA) software. The company was established in 2003 by founder Apo Sezginer and was headquartered in San Jose, California. Invarium's core business focused on developing advanced pattern-synthesis and lithography-modeling technologies. These tools were created to enhance photomask design and optimize the manufacturing process, from mask creation to lithography and etch.

The firm targeted semiconductor manufacturers and integrated circuit (IC) designers working with advanced process nodes, specifically 45-nanometer-and-below technologies. Its primary product, DimensionPPC, was a full-chip process and proximity compensation tool designed to address the challenges of generating manufacturable IC designs at 65-nm and below. This software provided a solution for improving pattern resolution and accelerating yield ramp-up, which is critical for producing custom and memory designs at advanced nodes where high accuracy is required. The business model centered on providing these high-value software services to a global clientele in the semiconductor sector.

Invarium's journey included securing venture capital funding, starting with a Series A round of $5.04 million in December 2003, followed by a $6 million Series B round in January 2006. The company's trajectory culminated in its acquisition by Cadence Design Systems, Inc. on July 10, 2007. This acquisition was a strategic move by Cadence to strengthen its Design for Manufacturability (DFM) solutions, integrating Invarium's manufacturing-side technology to offer a comprehensive suite from design implementation to silicon signoff.