[introduction]Science and technology already made the indispensable one part in our life and the world that is changing us ceaselessly. because of such, systematic design becomes more complex, to ensure function, function is mixed dependability, the emulation parameter of the design increases ceaselessly. Optimizing the design that owns numerous emulation parameter is a job that has challenge sex extremely, design personnel has experience greatly to this, because this task need expends many computational natural resources, time and cost. Final, this kind of method will be afterwards hard.

Science and technology already made the indispensable one part in our life and the world that is changing us ceaselessly. because of such, systematic design becomes more complex, to ensure function, function is mixed dependability, the emulation parameter of the design increases ceaselessly. Optimizing the design that owns numerous emulation parameter is a job that has challenge sex extremely, design personnel has experience greatly to this, because this task need expends many computational natural resources, time and cost. Final, this kind of method will be afterwards hard.

Just think one, assume a design is emulated have 10 controllable parameter, and every parameter has 10 potential values. To optimize a design, we must examine all possible combination, need to be carried out 10 billion times namely emulate! If use traditional labor power concentrated model flow (design, test and improve) , this need tens of year ability is finished. Ensure the design succeeds crucial, and accurate electromagnetism (EM) is emulated is the crucial step in this one process, but this need expends a large number of time.

Make flow replace a hand to move an operation with traditional actor chemical industry, whether the best design with true implementation?

The fact proves, the system that is aimed at any dimensions or complex degree is best design, we can use the aggrandizement study that uses in Cadence Joint Data And Analytics (JedAI) Platform, special apace builds a machine study (ML) model. Cadence Optimality Intelligent System Explorer is a much physics field that makes type AI drive optimizes software, it uses artificial intelligence (the advanced much course of AI) drive is analysed and optimize (MDAO) technology.

Optimality Intelligent Explorer and Clarity 3D Solver and Sigrity X are completely compositive, the high speed signal that Sigrity X is Cadence and power source integrality (SI/PI) platform. Design personnel can mix systematic level SI PI emulates as laden as the analysis move to arrive Move on Optimality Explorer, realize a design quickly to optimize thereby, avoid to redesign, the product is accelerated to appear on the market on whole speed.

The article will carry a simple test case, reveal ground of the save labour when how using Cadence Clarity 3D Solver and Optimality Explorer province to optimize aperture of the opposite that need branch to transfer.

The PCB that this exemple uses a 6 layer substrate board, GND plane is located in a top layer, ground floor mixes the 3rd, the counterpoint that need branch mixes the 5th at the 2nd, VDD plane is located in the 4th to eletroplate via (PTH) , GND PTH crosses Kong Jin to be next to signal to cross aperture.

In this exemple, design and analytic target are implementation target the impedance that need branch, what optimize specific frequency to fall is low insert loss (S21) and echo loss (S11) . We use Optimality Explorer to undertake to Layout parameter changes processing, so that how understanding revises ability to improve design performance; When moving flow to undertake comparative with the hand, we discover Optimality Explorer came true to design the automation of flow, finish design astringent early.

Following plan institute are shown, the hand moves flow to include a technological process that repeats a loop: Establish initiative Layout, definition port, move emulate, the result that records every kinds of case, and the content that exploration needs to revise. This not only very time-consuming, and the hand with many need moves an operation.

Optimality Explorer and Clarity 3D Solver cooperate each other, use AI deepness study, can find a solution effectively. In the meantime, optimality Explorer implemented flow automation, need not intervene artificially; This flow includes to define the parameter that should optimize and set to optimize a target, found Layout automatically next and move emulate, optimize a target in order to come true. Optimality Explorer supports much physics field to emulate, the emulation data that reduced place to need or emulation time, can design convergence with fewer emulation frequency implementation.

The rate of Optimality Explorer method is rapidder, need not intervene artificially can all night moves, to explore different design plan provided a kind of more efficient means. It applies to all design phase, like span, return method to cross opening position, plane to open dimension of groove, bore and segregation solder dish etc, the user can explore the value of these parameter according to the feasibility of workmanship.

Working principle / measure: How to install Optimality Explorer to move?

Optimality Explorer is the tool with a powerful function, can implement automation of design technological process — it can be defined optimize parameter and variable, inside the attrib border condition of set intelligent ground chooses random value. It still can define target function target and function kind to optimize. Emulate after finishing, the user can watch chart and convergent figure, in order to achieve optimal result. If be opposite the result is dissatisfactory, can begin to emulate afresh, continue to optimize, arrive to expect a result continuously.

Use Optimality Explorer to be able to find better solution quickly. In addition, pattern plate function can add design variable automatically in parameter list, optimize wiring easily and maintain all consistency that design a layer. Although be inside low frequency limits, use this kind of method to also find better solution can more efficiently. Returning hole has been placed all round method (all round signal cross aperture) the likelihood is very complex, fall in the case that small Kong He buries aperture especially. Signal arrives to transfer rock-bottomly from core layer the likelihood is very complex.

Use the function that Optimality Explorer provides, the user can be classified quickly and to load parameter, more optimal with the poorest condition, examine the notable difference between them. In Optimality Explorer aid force to fall, inchoate the person that use had optimized aperture structure already successfully, improved design performance.

We are Cadence Optimality Intelligent System Explorer is inchoate the person that use, in the firm soft couple that has many via structure and transmission line on PCB board, this tool performance is outstanding.

The AI drive of Optimality Explorer is optimized let us discover original design and method, and these are we use other tool to cannot come true. Optimality Explorer is increased intelligence with respect to the Clarity 3D Solver with powerful function originally, help us reach function goal quickly. — Kyle Chen, microsoft is presiding hardware engineer

Conclusion

Industry needs change mode, slam the door repeated in the past ” design, test and improve ” the traditional flow of this one loop, turn and use the technology that makes type AI drive, obtain while contented time is restricted optimize a design.

The inchoate user of a lot of SoC stylist and Optimality Intelligent System Explorer thinks now, traditional labor power is concentrated model optimize flow to had exited historical arena. Optimality Explorer can help design group optimize a design, what designing circuit is inchoate discover gentle solves hot problem quickly, shortened greatly the optimizes design iteration place to need time with right implementation.

It makes design an engineer to be able to explore 3D electromagnetism (the result of EM) and high speed signal and power source integrality, the lock decides optimal design. It can help design group be below the situation that does not affect accuracy, the analysis that accelerates electronic system and optimize, be analysed easily and optimize 3D electromagnetism (EM) and high speed signal and result of power source integrality.

Article origin: Cadence model ascend PCB to reach enclose resource center

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