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Smoltek’s IP footprint relating to interposers keeps growing. This new Chinese patent is covering CNF-MIM capacitor applications on interposers. This also brings our patent portfolio to now comprise 69 granted patents.
Smoltek’s patent protected concepts around interposers are built on the need to improve circuit performance by enabling smarter, compact energy storage devices which in turn can enable more efficient power management solutions.
This particular patent belongs to our patent family that covers the company’s CNF-MIM capacitor technology and various use cases for the same, primarily in the field of interposers for advanced packaging and heterogenous integration of semiconductors.
The invention as such facilitates integration of extremely thin solid-state devices, such as CNF-MIM capacitors, where the main advantage is that the energy storing devices can be placed closer to the interconnection points and power rails of the active chip, thus enabling more efficient power management solutions for the whole circuit.
Miniaturized or compact energy storage devices e.g. capacitors are in high demand in the field of today’s advanced packaging architectures for integrated circuits, for example commonly used for microprocessors and other heterogeneously integrated semiconductors.
Smoltek’s patent portfolio now globally comprises 69 granted patents. Read more about our IP and patents.
Image: Smoltek R&D engineers at Chalmers MC2 laboratory
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News
June 27, 2025
Smoltek Semi has cleared a significant milestone in the development of next-generation CNF-MIM capacitors. Samples from the latest prototype generation, fabricated with an advanced dielectric stack composed of zirconium oxide (ZrO₂) and aluminum oxide (Al₂O₃) have demonstrated exceptional stability under both temperature and voltage stress.
News
June 18, 2025
Smoltek Semi has initiated the signing of a technical service agreement with the Taiwanese Industrial Technology Research Institute (ITRI) that enables low-volume production of Smoltek's propriety CNF-MIM capacitors.
News
June 11, 2025
Smoltek Semi has successfully engineered an advanced dielectric stack that surpasses 1 microfarad per Square millimeter capacitance milestone.
News
June 11, 2025
Smoltek Semi develops CNF-MIM – a proprietary capacitor technology based on carbon nanofibers, which is intended to meet the demands of next-generation electronics, including applications in AI, smartphones and automotive electronics.
News
April 28, 2025
Smoltek is awarded yet another patent in the Discrete CNF-MIM patent family. The innovation discloses a discrete capacitor component based on our CNF-MIM technology that can achieve unparalleled high capacitance density. This also brings our IP portfolio to comprise 95 granted patents.
News
March 25, 2025
Smoltek Semi and the Taiwanese Industrial Technology Research Institute (ITRI) have finalized the technical framework for the establishment of a pilot production line for Smoltek's CNF-MIM capacitors at ITRI.