Fibre integrated circuits by a multilayered spiral architecture

Area of Science:

• Materials Science
• Electrical Engineering
• Wearable Technology

Background:

• Fibre electronic devices are evolving traditional textiles into interactive wearables.
• Existing devices offer functions like powering, sensing, and display.
• A key missing component for intelligent fibre systems is viable information-processing capability.

Purpose of the Study:

• To develop a fibre integrated circuit (FIC) capable of advanced information processing.
• To achieve high microdevice density and multimodal processing capacity within a fibre format.
• To enable intelligent, interactive fibre systems without bulky external processors.

Main Methods:

• Fabrication of a fibre integrated circuit (FIC) with high transistor density.
• Testing of FIC's digital, analogue, and neural computing capabilities.
• Evaluation of FIC's stability under extreme mechanical stress conditions (bending, stretching, twisting, crushing).

Main Results:

• Achieved unprecedented integration density of 100,000 transistors per centimetre.
• Demonstrated multimodal processing: digital, analogue, and high-accuracy neural computing.
• FICs exhibited exceptional durability, withstanding 10,000 cycles of bending/abrasion, 30% stretching, 180°/cm twisting, and 15.6-ton crushing.

Conclusions:

• The developed FIC successfully integrates advanced information processing into a single fibre.
• This breakthrough enables closed-loop systems within fibres, eliminating the need for external rigid processors.
• FICs pave the way for next-generation applications like brain-computer interfaces, smart textiles, and virtual-reality wearables.