Work

Maze solving automatons for self-healing of open interconnects: Modular add-on for circuit boards

Year: 2015

Type: article

Abstract: We present the circuit board integration of a self-healing mechanism to repair open faults. The electric field driven mechanism physically restores fractured interconnects in electronic circuits and has the ability to solve mazes. The repair is performed by conductive particles dispersed in an insulating fluid. We demonstrate the integration of the healing module onto printed circuit boards and the ability of maze solving. We model and perform experiments on the influence of the geometry of conductive particles as well as the terminal impedances of the route on the healing efficiency. The typical heal rate is 10 μm/s with healed route having mean resistance of 8 kΩ across a 200 micron gap and depending on the materials and concentrations used.

Source: Applied Physics Letters

DOI: 10.1063/1.4916513

Authors: Aswathi Nair, Karthik Raghunandan, Vaddi Yaswant, Sreelal S. Pillai, Sanjiv Sambandan

Institutions: Indian Institute of Science Bangalore, Indian Space Research Organisation, Vikram Sarabhai Space Centre

Language: English

Topic: Polymer composites and self-healing

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: green

Funder: Indian Space Research Organisation