PDF Solutions, Inc. provides proprietary software, physical intellectual property for integrated circuit designs, electrical measurement hardware tools, proven methodologies, and professional services in the United States, Japan, China, Taiwan, and internationally. The company offers Exensio software products, such as Manufacturing Analytics, a proprietary database schema to store collected data to identify and analyze production yield, performance, reliability, and other issues; Process Control, which provides failure detection and classification capabilities for monitoring, alarming, and controlling manufacturing tool sets; Test Operations that offer data collection and analysis capabilities; and Assembly Operations that provide device manufacturers with the capability to link assembly and packaging data, including fabrication and characterization data over the product life cycle. It also provides Sapience Manufacturing Hub enterprise, a connectivity platform between enterprise applications; Design-For-Inspection (DFI) systems, such as Proprietary Software, DFI On-Chip Instruments, eProbe Non-Contact E-Beam Tool; and Characterization Vehicle (CV) system, which includes CV Test Chips and pdFasTest Electrical Tester, as well as Exensio characterization software. In addition, the company offers Cimetrix software products that enable equipment manufacturers to provide standard interfaces on their products for equipment communication, control, and data collection; equipment factory connectivity products, such as Cimetrix CIMConnect, Cimetrix CIM300, and Cimetrix CIMPortal Plus; and equipment factory connectivity testing and equipment control products, as well as software-as-a-service, software related services, DFI system related services, and characterization services. PDF Solutions, Inc. was founded in 1991 and is headquartered in Santa Clara, California.