Currently the EDA industry is the direction of development will allow designers to design the entire system, not only limited to the design characteristics of the different entities of the system components of this trend from Apache Company acquired Optimal companies move to see that the clues. At the same time, the field through a series of mergers and acquisitions, for printed circuit board (PCB) of the EDA market in the past few years has matures.
Printed circuit board (PCB) design is the pioneer of the EDA industry by developing the first application. Schematic design of the capture is bundled with the proprietary workstation the first application, then that is Calma and Computervision Corporation for the application of IC layout blueprint for the development of the design tools. Followed by PCB layout tools, another major progress is made circuit schematic and layout design applications began sharing the database.
Manufacturing process makes progress in PCB size is shrinking, the speed and power consumption requirements are also gradually increase, which makes PCB and packaging of interconnection between all the more important. EMI and signal integrity for the application of analytical tools are followed. Signal integrity problems, including the main transmission line effects, such as delay, reflection, signal overshoot and undershoot, as well as crosstalk between signal, which signal crosstalk most complex, involving many factors to calculate the complex and difficult to control. Therefore, in todays electronic product design an urgent need to design different from the traditional environment, processes and methods of new ideas, new methods and techniques.
Currently EDA vendors have developed a set of high-speed PCB and board-level system design analysis tools and methodologies, these technologies cover high-speed circuit design analysis of various aspects: signal integrity analysis, EMI / EMC design, static timing analysis, and Shells reflective analysis, power analysis and high-speed cabling for.
In the development of a PCB, developers usually must undergo design, verification and layout, and produce data, a number of steps. Each of these steps include a variety of tools and principles, but developers must also be possible to expand the scope of verification system, so that the signal integrity, high-speed design, power requirements and the allocation of radio frequency (RF), and other key issues are taken into account Areas. In addition, as electronic systems become more complex and divisive, PCB between the I / O ports, and for the conduct of high-speed serial wire have become increasingly important.
The current application is very sensitive to power, on the one hand because all the applications are for the operation of the thermal environment, very sensitive, on the other hand, is due to portable applications must be as much as possible to save power. Therefore, I / O functions in this framework is particularly important, it is because they usually need all the power consumption is the highest in the IC devices, and because of its environment is connected by the IC chip designers to control, and in connection chip And when the external system is usually fixed.
The fact that more and show their lack of maneuverability, while some EDA providers have already begun to provide new design tools, it can be like a complete system at the same time as chip and package design. Therefore, in planning the budget and power IC IC layout and cabling, the package can also be taken into account characteristics.
Packaging, the electrical and mechanical characteristics of the PCB design is an important component part of the past, the Design Automation Conference (DAC), people with the tools and regret that the paper shortage will soon be a thing of the past. Even in the last DAC, which is committed to fill the gaps in this emerging market companies and their viability has been mentioned many times, signs on all fronts, I found that DFM is becoming re-introduce the concept of these important areas.
