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Electrical Design Platform on Engineering Cloud Electrical Design Platform on Engineering Cloud Takeo Nakamura Kiyokazu Moriizumi Toshiro Sato Shuichiro Yamada The conventional requirements of monozukuri (manufacturing) included needs for high performance, miniaturization, low costs and fast development. In addition to these, product development has come to require businesses to fulfill their social responsibilities in areas such as business continuity and consideration for the environment and safety. In order to respond to these changes in technologies and the business environment, it is essential to introduce development processes and a development environment that allow for effective governance of development overall. Fujitsu has integrated the know-how of monozukuri cultivated over many years, and built Flexible Technical Computing Platform (FTCP) as the integrated design development environment. It has provided it to customers in development sections, manufacturing sections and repair sections as “Engineering Cloud.” This paper describes an overview of FTCP. It also covers the features of and linkage between CAD for designing printed circuit boards, a key component of the electrical design platform; a simulation environment for analyzing noise and such like; and a standard component database which supports them. Moreover, it also describes the merits of providing FTCP in a cloud environment by using Engineering Cloud, and the shift of customers’ existing development environments to the cloud. 1. Introduction social responsibilities. In these technology Monozukuri (manufacturing) is becoming and market environments, standardized and more and more difficult every year with the governed product development process and increasing number of factors to take into innovation of the development environment that account in product development due to the supports the process are becoming indispensable. evolution of technology and changes in the This paper describes a development business environment. These factors include environment that allows product development analog behavior of digital signals resulting lead time to be reduced and quality and from higher-speed semiconductor devices, noise performance to be improved, and is speeding margin decrease due to reduced voltage, and up the Fujitsu Group’s monozukuri. This paper miniaturization and density increase as is seen presents a design and verification environment, in smartphones. Meanwhile, there are urgent standardized standard component database and demands for a shorter time-to-market and lower approach to operation in a cloud environment costs because of global competition, and a shorter with the focus on the electrical design platform. development lead time and low-cost development are now essential. In addition, business 2. Integrated design development requirements such as business continuity, environment: FTCP consideration for the environment and safety As an environment assisting manufacturing are increasingly demanding as part of corporate innovation, Fujitsu has worked on constructing FUJITSU Sci. Tech. J., Vol. 48, No. 4, pp. 413–421 (October 2012) 413 T. Nakamura et al.: Electrical Design Platform on Engineering Cloud EMAGINE, a design environment that supports consisting of PC clusters and grid computing. development with no rework required from There are three major points in the design to manufacturing.1) electrical design environment in FTCP, and they To further evolve and integrate this are described in the following sections: environment into a development platform, we 1) Electrical CAD tools and DRCs integrating are now building Flexible Technical Computing design know-how and technology Platform (FTCP), an integrated design 2) Complete electrical simulation by making development environment that consolidates use of technical computing development know-how in manufacturing and 3) Standard component database that supports makes use of technical computing (Figure 1). the standardization of components and FTCP provides on the platform a GUI-based design verifi cation CAD environment, real-time verifi cation (Design Rule Check [DRC]) environment for signals, 3. Electrical design CAD power, heat and mechanisms and a design Electrical design CAD consists of tools that standard and standard component database support an entire range of processes from concept (library) that supports them. In this way, it design, which is the upstream area of the design assists in the development process from the process, to detail design and manufacturing upstream of the design process to manufacturing. (Figure 2). Furthermore, to perform enormous amounts These tools incorporate design and of computation for purposes including high- verifi cation know-how built up over many years accuracy analysis and simulation in short periods by Fujitsu so as to support the design of large of time, it offers technical computing resources boards for supercomputers, servers and network LSI design CAD PCB design CAD Mechanical design CAD LSI-CAD PT board CAD 3D-CAD Fujitsu Group’s development platform (Integration of know-how of development sections) — Flexible Technical Computing Platform — Strategic tool Simulation Real-time verification Content Wiring support Electric signal Electrical design criteria check …solver Electrical Power supply …criteria check Model … Component …dedicated machine library library …criteria check Thermo fluid Knowledge management Mechanical Silence …check Collective knowledge … Logical connection check Analysis support Standards …library Logic/delay …check LSI … Figure 1 Fujitsu’s integratedFigure design development1 environment (FTCP). Fujitsu’ s general design development environment (FTCP). 414 FUJITSU Sci. Tech. J., Vol. 48, No. 4 (October 2012) T. Nakamura et al.: Electrical Design Platform on Engineering Cloud System level Logic circuit design Detail board design Manufacturing design Mass concept design/analysis verification/analysis verification/analysis Mass production design production Concept design CAD Circuit design CAD Board design CAD Board design CAD · Circuit DRC · Board DRC · Analysis linkage · Component DRC · Electrical DRC · Manufacturability DRC · Board design linkage · Manufacturability DRC · Manufacturability DRC · Concurrent design · Concurrent design · Analysis linkage · Electromechanical linkage · Analysis linkage Linkage Signal noise analysis SignalAdviser-SI Power noise analysis Power noise analysis Linkage SignalAdviser-PI SignalAdviser-PI Linkage EMC-compliant DRC SignalAdviser-EMC Standard component database Figure 2 Design/verificationFigure 2 tools and standard component database supporting development process. Design/verification tools and standard component database supporting development process. devices and small high-density boards for mobile PCB and component shapes using a wizard. In phones and notebook PCs. addition, the PCB shape, layer configuration and component shapes can be freely changed in the 3.1 Concept design process of component layout/wiring editing, thus In the concept design process, multiple allowing designers to easily study board designs cases are compared to study the size, layer of various cases. configuration, rough layout of key components The results of design undergo an evaluation and wiring routes of a printed circuit board in terms of the component layout location, wiring (PCB) so as to select the optimum solution among route information, wiring length, power pattern, them. This is then handed to the following detail and such like. This is done by making use of design process as the board design specifications. the linkage with the signal integrity and power To prevent major rework in the subsequent integrity analysis tools, which provides design processes, concept design CAD tools for printed conditions that are used in detail design as board design and different analysis tools are used design constraint conditions. for various types of verification and evaluation including component layout/wirability, signal 3.2 Detail design integrity, power integrity, heat generation The detail design process includes characteristics and manufacturability. component selection, circuit design, wiring To make it easier to use CAD in the concept constraint design and board design. design process, which is the uppermost stream 1) Component selection of design, the concept design CAD allows a Component selection is an important design to be started simply by creating the process that has an impact on the performance, FUJITSU Sci. Tech. J., Vol. 48, No. 4 (October 2012) 415 T. Nakamura et al.: Electrical Design Platform on Engineering Cloud reliability and cost of a product and the choice and shielded wiring for preventing crosstalk of components is refi ned in a real-time search noise, equal-length wiring for differential pair of the component database described later from signals and equal-length bus wiring to reduce the circuit design CAD. An automatic collective wiring work and wiring constraint errors. In replacement function to replace end-of-life addition, a system is provided in which a real- components with alternatives and environmental time DRC constantly checks the wiring pattern regulation-ready components is provided and a during editing to ensure the wiring is in keeping system to promptly use standard components is with the design criteria and wiring constraints. realized. 3) Reduction of rework by DRC 2) Constraint-driven design and wiring support DRC to ensure adherence to Fujitsu’s In designing a board that is to handle design criteria and
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