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PDFS vs RBBN

PDF Solutions Inc and Ribbon Communications Inc. Common Stock

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PDF Solutions Inc

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.

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Ribbon Communications Inc. Common Stock

Ribbon Communications Inc. provides communications technology in the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments, Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment provides software and hardware products, solutions, and services for voice over internet protocol communications, voice over long-term evolution, and voice over 5G communications, and unified communications and collaboration. It also offers session border controllers; and network transformation products, such as signaling products, call controllers, media gateways, and application servers. This segment serves private, public, or hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. The IP Optical Networks segment provides hardware and software products and solutions for IP networking, switching, routing, and optical transport for technologies comprising 5G, distributed cloud computing, and corresponding applications. It also offers multiple solutions, including 5G-native solutions for mobile-backhaul, metro and edge aggregation, core networking, data center interconnect, multi-service access, and transport solutions for wholesale carriers. This segment serves utilities, government, defense, finance, transportation, and education and research industries, as well as service providers and enterprises. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Ribbon Communications Inc. was founded in 1997 and is headquartered in Plano, Texas.

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