Elementary Mr. Watson: Running the Signal Gauntlet
The Shaughnessy Report: Winning the Signal Integrity Battle
Connect the Dots: How to Avoid Five Common Causes of Board Failure
Panasonic Meeting Market Needs with Higher-Performance Megtron 7
March 17, 2015 | Pete Starkey, I-Connect007Estimated reading time: 8 minutes
I-Connect Technical Editor Pete Starkey sat down with Panasonic’s Tony Senese and Tomoyuki Abe at IPC APEX EXPO 2015 in San Diego–high-speed digital materials, particularly those with very low-loss characteristics, was the focus of their discussion. Also noted were the positive responses from chemical process suppliers, and the realistic length of a product development cycle.
Pete Starkey: Panasonic Megtron 6 has become established as the industry standard, but I understand there is a new product coming out of development and in the early stages of production, Megtron 7, which is the lowest-loss material that is currently available from Panasonic. Can you gentlemen give me some details of the characteristics and performance of the material, and the sort of applications of the industry sectors where this material is going to be of substantial benefit?
Tony Senese: We have a technology development roadmap that we update on a regular basis at least a couple times a year, and we have several market segments that we track our products in.
Tomoyuki Abe: Right now, Megtron 6 is the standard of the high-end server router equipment material, but the market is requesting the more high-speed material. Megtron 6 is quite good, but the market needs higher-performance material.
Starkey: To clarify, when you talk about high-speed material, what sort of data rates are you aiming at?
Senese: In the high-speed digital area right now, products are operating in the 10 Gbps to 20 Gbps range enabled by Megtron 6. However, at 20 Gbps other things have to be done to the circuit boards to make them meet the loss budget. Megtron 6 enabled the major IT infrastructure suppliers to use very similar design techniques to what they were using at lower speeds—say, 6–10 Gbs. So now, that is kind of the standard rate in that high-speed digital arena.
Starkey: So Megtron 7 effectively is an enabler that opens up the possibilities for them to develop into higher data rates?
Senese: That’s right. Basically, at the 25 Gbps data range, which is actually already in place, Megtron 7 removes a few roadblocks that make the fabrication difficult. At the 25 Gbps data range, especially on the large format back planes, and some of the line cards, the loss budget is too close to the mark, even with Megtron 6. It is a goal of all of these infrastructure companies to increase the amount of data they can transmit because of things like streaming video that have started to become ubiquitous, so they need to have their core routers to be much faster.
So 25 Gbps is where they're designing right now, and there are people who are designing certain pieces of equipment at the 50 Gbps range. So that meansthat really Megtron 6 isn't enough to build those core routers, as is.
There are connectors being developed that are fast enough and can be used that are early in production, and the people that are building what I would call proof-of-concept hardware are really just too close to the edge. They can build it once, but they can't build it in high volume, or even in normal quantities. But when it comes to loss, there is quite the difference from Megtron 6.
Page 1 of 3
Share on:
Testimonial
"In a year when every marketing dollar mattered, I chose to keep I-Connect007 in our 2025 plan. Their commitment to high-quality, insightful content aligns with Koh Young’s values and helps readers navigate a changing industry. "
Brent Fischthal - Koh YoungSuggested Items
Trouble in Your Tank: Implementing Direct Metallization in Advanced Substrate Packaging
09/15/2025 | Michael Carano -- Column: Trouble in Your TankDirect metallization systems based on conductive graphite are gaining popularity throughout the world. The environmental and productivity gains achievable with this process are outstanding. Direct metallization reduces the costs of compliance, waste treatment, and legal issues related to chemical exposure. A graphite-based direct plate system has been devised to address these needs.
Closing the Loop on PCB Etching Waste
09/09/2025 | Shawn Stone, IECAs the PCB industry continues its push toward greener, more cost-efficient operations, Sigma Engineering’s Mecer System offers a comprehensive solution to two of the industry’s most persistent pain points: etchant consumption and rinse water waste. Designed as a modular, fully automated platform, the Mecer System regenerates spent copper etchants—both alkaline and acidic—and simultaneously recycles rinse water, transforming a traditionally linear chemical process into a closed-loop system.
Driving Innovation: Depth Routing Processes—Achieving Unparalleled Precision in Complex PCBs
09/08/2025 | Kurt Palmer -- Column: Driving InnovationIn PCB manufacturing, the demand for increasingly complex and miniaturized designs continually pushes the boundaries of traditional fabrication methods, including depth routing. Success in these applications demands not only on robust machinery but also sophisticated control functions. PCB manufacturers rely on advanced machine features and process methodologies to meet their precise depth routing goals. Here, I’ll explore some crucial functions that empower manufacturers to master complex depth routing challenges.
Trouble in Your Tank: Minimizing Small-via Defects for High-reliability PCBs
08/27/2025 | Michael Carano -- Column: Trouble in Your TankTo quote the comedian Stephen Wright, “If at first you don’t succeed, then skydiving is not for you.” That can be the battle cry when you find that only small-diameter vias are exhibiting voids. Why are small holes more prone to voids than larger vias when processed through electroless copper? There are several reasons.
The Government Circuit: Navigating New Trade Headwinds and New Partnerships
08/25/2025 | Chris Mitchell -- Column: The Government CircuitAs global trade winds continue to howl, the electronics manufacturing industry finds itself at a critical juncture. After months of warnings, the U.S. Government has implemented a broad array of tariff increases, with fresh duties hitting copper-based products, semiconductors, and imports from many nations. On the positive side, tentative trade agreements with Europe, China, Japan, and other nations are providing at least some clarity and counterbalance.