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Smoltek has received a new patent for improving the capacitance density of our CNF-MIM capacitors. This innovation, a type of capacitor, can increase the capacitance density by two to three times, which is crucial for Smoltek's business and technology growth.
The patent is the first one in a new catÂeÂgoÂry called MulÂtiÂlayÂer Cap, and describes a method for creÂatÂing a layÂered capacÂiÂtor using a metÂal-insuÂlaÂtor-metÂal (MIM) strucÂture. This method involves stackÂing conÂducÂtor-insuÂlaÂtor layÂers to enhance capacÂiÂtance denÂsiÂty, a key feaÂture of Smoltek’s CNF-MIM capacÂiÂtor technology.
CapacÂiÂtance denÂsiÂty is one of the most imporÂtant KPIs of our CNF-MIM capacÂiÂtor techÂnolÂoÂgy. In this new patent, we proÂpose a techÂnique that douÂbles or triples the capacÂiÂtance denÂsiÂty through an innoÂvatÂing mulÂti-layÂer structure.
Farzan GhaÂvaniÂni, CTO at Smoltek.
The patent disÂclosÂes a disÂcrete metÂal-insuÂlaÂtor-metÂal (MIM) capacÂiÂtor comÂpoÂnent based on the proÂpriÂetary carÂbon nanofiber techÂnolÂoÂgy develÂoped at Smoltek. It also describes the strucÂture of such capacÂiÂtor and the relatÂed microÂfabÂriÂcaÂtion processÂes to realÂize it
The patent includes two main claims: one for the strucÂture of the capacÂiÂtor and anothÂer for the manÂuÂfacÂturÂing process. This invenÂtion focusÂes on improvÂing metÂal-insuÂlaÂtor-metÂal (MIM) capacÂiÂtors and batÂterÂies, includÂing capacÂiÂtors and batÂterÂies, through a new, innoÂvÂaÂtive mulÂti-layÂer structure.
Smoltek’s patent portÂfoÂlio now globÂalÂly comÂprisÂes 90 grantÂed patents. Read more about our IP and patents.
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News
February 24, 2026
An independent, third-party reliability test of our CNF-MIM capacitor technology has confirmed the reliability results communicated on February 5, 2026. The independent validation, performed by a major capacitor manufacturer, also reduces technical risk in the commercialization process and strengthens Smoltek’s credibility in ongoing negotiations with industrial partners.
News
February 5, 2026
Smoltek’s CNF-MIM capacitors demonstrate excellent stability in a new 1,000-hour life test at 85°C under applied 2 volts. No degradations were observed, and the capacitors exhibited more than 1,000 times lower current leakage compared to the previous life test.
News
November 20, 2025
We have launched a podcast about materials technology and investments in general and our disruptive carbon nanotechnology in particular.
News
November 17, 2025
Smoltek Semi is currently optimizing the company’s advanced PECVD system to ensure implementation of its most recent technological innovations in CNF synthesis, enabling compliance with stringent customer requirements, prior to installation at ITRI in Taiwan.
News
November 5, 2025
Smoltek Semi has reached an important technical milestone in the development of the company’s carbon fiber-based CNF-MIM technology. The capacitors have successfully passed a 1,000-hour high-temperature durability test, confirming the robustness of the technology for advanced applications.
News
October 24, 2025
Smoltek Semi has acquired a plasma-enhanced Atomic Layer Deposition (ALD) system to implement its advanced dielectric stack on carbon nanofibers. The system will significantly reduce the iteration time of coating processes while enabling innovation and IP generation in dielectric stack technology for carbon nanofiber electrodes.