Product Design Technology

Application/Solution Design Technology
(EMI Countermeasures Technology)

Murata's noise countermeasure technology provides solutions that precisely estimate noise sources, conduction paths, and radiation sources, encompassing everything from proposing optimal countermeasure components to board design proposals that maximize their effectiveness.

This technology addresses both emission noise countermeasures and immunity noise countermeasures.

Emission Noise Countermeasures: Noise sources, generation mechanisms, conduction paths, and radiation sources are estimated and verified through noise distribution measurements and computer simulations.

Immunity Noise Countermeasures: Points susceptible to malfunction due to noise interference are identified. As with emission noise countermeasures, noise sources, conduction paths, radiation sources, and generation mechanisms are estimated and verified through measurement and simulation.

We then select components that maximize noise reduction while maintaining signal integrity and power supply quality in electronic circuits. Component selection utilizes design support tools like SimSurfing. Finally, we confirm noise suppression effectiveness through actual measurements, delivering highly reliable noise countermeasure solutions.

Source of inserted image: Service Robot Noise Suppression-1(1/3)
Link: Details of Murata’s EMC support setup
Link: Noise propagation on printed circuit boards

Murata's strength in noise countermeasure technology lies in its in-house noise testing environment and the diverse noise countermeasure techniques and methodologies developed through years of collaboration with electronics and semiconductor manufacturers, which can be applied to actual design boards.

Actual electronic device boards are highly complex. Consequently, the noise problems they generate are also becoming increasingly complex, involving noise radiation from multiple noise sources through various propagation paths. Even when implementing analysis and countermeasures based on theories such as radio wave propagation, electromagnetics, and electrical circuits, resolving noise issues remains difficult and may adversely affect signal integrity and power supply quality.

Murata leverages its extensive accumulated knowledge and technology in noise countermeasures to provide rapid and effective solutions for the noise challenges of increasingly complex design boards. Through these efforts, we will also support new applications and next-generation communication environments.

Source of inserted image: Robot Emission Suppression Measures-1 (1/4)

As electronic devices have become more sophisticated and increasingly compact and thin, noise countermeasure technologies have evolved accordingly.

The increasing sophistication of electronic devices has led to a rise in the number of circuits installed. Simultaneously, the progress in making electronic devices smaller and thinner has driven the high-density mounting of semiconductors and peripheral circuit components on circuit boards.

In EMI (electromagnetic interference) and noise measurement, we have advanced the establishment of test environments and technologies enabling the measurement of minute noise. In noise countermeasures, we have also developed countermeasure technologies and components to effectively reduce minute noise.

Thus, alongside the evolution of electronic devices, we have comprehensively advanced noise countermeasure technologies, countermeasure components, and measurement technologies. To continue responding to changes in the electronics market, we will strive to further advance noise countermeasures.