Press Release

May 28, 2014

Panasonic Debuts MEGTRON 7 Multilayer Circuit Board Material

Panasonic Corporation has developed MEGTRON 7, a multilayer circuit board material with the industry’s lowest transmission loss, which meets the requirements for high-capacity and high-speed transmission of high-end servers, routers, etc., thereby contributing to the improvement of their signal processing performance.

Today, there is a growing need for high-speed processing of large volumes of data to keep up with the spread of information terminals, such as smartphones and tablet PCs, as well as social networking and video sites. To meet this need, high performance servers, routers and other equipment are under development. Playing a central role in such equipment, circuit board materials also require increased capacity and transmission speed, as well as a greater number of layers. Panasonic has succeeded in the development of a multi-layer circuit board material featuring the industry’s lowest transmission loss*1, which contributes to a further increase in capacity and transmission speed.


  1. The industry’s lowest transmission loss*1 enables high-speed transmission
    • Dielectric constant (Dk) [3] = 3.3 (1 GHz)
    • Dissipation factor (Df) [4] = 0.001, 1/2 vs. Panasonic’s previous model*2 (@ 1 GHz)
    • Transmission loss: Down by 20% vs. Panasonic’s previous model*2 (@ 12.5 GHz)
  2. Circuit board material with high heat resistance and high reliability facilitates the production of circuit boards comprising a greater number of layers
    • Reflow heat resistance: Passed a 10-cycle test (260°C, 28 layers)
    • Insulation reliability: Passed a 500-hour test (121°C, 85% RH, 50 V)
    • Glass transition temperature: 210°C Thermal decomposition temperature: 400°C


High-end servers, high-end routers, supercomputers, and other ICT infrastructure equipment


*1 As a high layer count circuit board material for high-end servers. As of May 2014, according to Panasonic research.
*2 MEGTRON 6 high-layer-count circuit board material.

About Panasonic

Panasonic Corporation is a worldwide leader in the development and engineering of electronic technologies and solutions for customers in residential, non-residential, mobility and personal applications. Since its founding in 1918, the company has expanded globally and now operates over 500 consolidated companies worldwide, recording consolidated net sales of 7.74 trillion yen for the year ended March 31, 2014. Committed to pursuing new value through innovation across divisional lines, the company strives to create a better life and a better world for its customers. For more information, visit the