PDF Solutions, Inc. provides infrastructure technologies and services to enhance yield and optimize performance of integrated circuits (IC) in the United States, Germany, Taiwan, China, South Korea, and internationally. It offers manufacturing process solutions; volume manufacturing solutions; design-for-inspection (DFI) solutions; and design-for-manufacturability (DFM) solutions. The company also provides Characterization Vehicle (CV) infrastructure, which includes CV test chips, pdCV analysis software, and pdFasTest electrical testers; DFI infrastructure that comprises DFI on-chip instruments, eProbe contactless E-beam tool, and Exensio char DFI software; FIRE software, which analyzes an IC design to compute its systematic and random yield loss; and Template technology that includes Templatyzer software and IP for identifying and developing a set of layout patterns. In addition, it offers Exensio enterprise-wide platform, which consists of Exensio-Yield that collects, loads, and stores yield data in an analysis-ready database, which enables product engineers to identify and analyze production yield, performance, reliability, and other issues; Exensio-Control, which provides fault detection and classification capabilities for monitoring, alarming, and controlling manufacturing tool sets; Exensio-Test that offers testing and analysis capability; and Exensio-Char, which encapsulates test structure analysis functionality of electrical and in-line inspection data from CV test chips and DFI on-chip instruments. The company sells its technologies and services through direct sales force, solution implementation teams, and strategic alliances to integrated device manufacturers, fabless semiconductor design companies, and foundries in the microprocessors, memory, graphics, image sensor solutions, and communications segments. PDF Solutions, Inc. was founded in 1992 and is headquartered in San Jose, California.