Ultra Thin High Density Silicon Capacitors and Integrated Micro-Batteries

· IPs,Energy Storage

Fraunhofer IPMS has developed aninnovative IP core centered around ultra-thin, high-density silicon capacitors. This technology offers significant potential for revolutionizing energy storage solutions in the automotive and mobile phone industries by enabling the creation of integrated micro-batteries.

Core Technology Description

Ultra-Thin Design: The IP core focuses on minimizing the physical thickness of the silicon capacitors without compromising capacitance density. This is achieved through advanced materials engineering and optimized fabrication processes.

High Capacitance Density: The capacitors exhibit exceptionally high capacitance values per unit area, allowing for compact energy storage solutions. This is made possible by the use of high-permittivity dielectric materials and innovative electrode structures.

Silicon-Based Construction: Leveraging the mature semiconductor manufacturing ecosystem, the capacitors are built on a silicon substrate, ensuring compatibility with existing IC fabrication processes. This facilitates seamless integration into integrated circuits.

Scalability: The IP core is designed to be scalable in terms of capacitance and size, enabling customization for various applications and form factors.

Reliability and Performance: Rigorous testing and characterization have demonstrated the capacitors' excellent performance in terms of charge/discharge efficiency, cycle life, and power density.

Applications in Integrated Micro-Batteries

Automotive Industry:

Integration into powertrain control units (PCUs) for energy recovery and smoothing.

Incorporation into battery management systems (BMS) for improved performance and safety.

Use in auxiliary power systems for enhanced vehicle functionality.

Mobile Phone Industry:

Integration into smartphone processors for improved power efficiency and performance.

Use in wearable devices for extended battery life and faster charging.

Incorporation into wireless charging modules for increased efficiency.

Benefits and Advantages

Increased Energy Density: The high capacitance density of the silicon capacitors enables more energy to be stored in a smaller footprint.

Improved Performance: The ultra-thin design and fast charge/discharge capabilities enhance system performance and responsiveness.

Enhanced Reliability: Built on a mature semiconductor platform, the capacitors offer high reliability and durability.

Cost-Effective Integration: Compatibility with standard IC manufacturing processes reduces production costs and time-to-market.

Flexibility: The scalable nature of the IP core allows for customization to meet specific application requirements.

Potential for Future Development

Fraunhofer IPMS is actively pursuing further advancements in silicon capacitor technology, including:

  1. Development of even thinner and higher-capacity capacitors.
  2. Exploration of new materials and fabrication techniques for improved performance.
  3. Integration of energy harvesting capabilities into the capacitors.

By continuously pushing the boundaries of silicon capacitor technology, Fraunhofer IPMS aims to contribute to the development of next-generation energy storage solutions for a wide range of applications.