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Smoltek is awarded a new patent in Japan. This patent is the sixth one of the patent family in the direction of CNF-MIM based compact energy storage on interposers. This also means that our global patent portfolio now comprises 77 granted patents.
Smoltek’s 77th patent has been granted in Japan and is covering the invention and manufacturing of extremely thin energy storage devices embedded in an interposer.
Our inventions in the area of semiconductors and electronics facilitate integration of extremely low-profile solid state energy storage devices, such as CNF-MIM capacitors, closer to the connection points and power rails of the active chips. The CNF-MIM-technology offers the smallest form-factor for integrated high-performance capacitors by providing very high capacitance per area at a fragment of height compared with today’s technologies.
Traditionally, an interposer is used only to make redistributions layers (RDL) or interconnects for other dies to be connected. With our patented concept, it will be possible to make the interposer having energy storage devices e.g. capacitors, solid state micro batteries etc. embedded within the interposer structure. This allows not only to have interposer with interconnects but also with energy storage.
“The applications of such interposers are anticipated to steadily grow in the field of Heterogeneous Integration. And in this case, our compact energy storage interposer family is complementary to our Interposer family, and offers an alternative path to utilize our CNF-MIM technology primarily to manufacture interposers. The beauty of our concept is that it facilitates to make an interposer smarter with added functionality embedded within the interposer. Quite mindboggling, actually”,
says Farzan Ghavanini, CTO and Head of R&D at Smoltek.
Smoltek’s patent portfolio now globally comprises 77 granted patents. Read more about our IP and patents.
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News
October 20, 2026
Smoltek has engaged Dr. Philip Lessner, formerly Executive Vice President and Chief Technology Officer (CTO) of Yageo Group, as a senior advisor to strengthening Smoltek Semi’s industrial expertise and the effort to commercialize CNF-MIM technology for ultra-thin capacitors within the semiconductor sector.
News
October 14, 2026
Smoltek Semi participated in the IEEE Electronics System-Integration Technology Conference (IEEE ESTC 2026), a leading European forum for the development of next-generation semiconductor and electronic systems.
News
October 5, 2026
Smoltek Semi attended the European technology conference ECOC 2026 to identify how the company’s ultra-thin capacitor technology, CNF-MIM, can create value within optical communication applications.
News
September 16, 2026
Between September 7–9, Smoltek’s CTO, Farzan Ghavanini, participated in the Business Sweden semiconductor delegation to Japan, meeting with leading companies and organizations across the Japanese semiconductor ecosystem.
News
May 15, 2026
Smoltek has been granted an additional patent within its Interposer patent family, further protecting the company’s CNF-MIM capacitor technology for advanced semiconductor packaging. With this European patent approval, the company has secured Interposer IP in all major global markets.
News
March 27, 2026
Our CNF-MIM technology has demonstrated stable electrical performance after 2,000 hours in an independent life test conducted by a global capacitor manufacturer. This further strengthens confidence in the reliability of the technology and supports Smoltek's development of advanced capacitors for AI, RF and optoelectronics, among other applications.