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Electro-mechanical Systems

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Updated: Aug 25, 2025

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery

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Published on: November 14, 2015

Dual-Functional Self-Attachable and Stretchable Interface for Universal Three-Dimensional Modular Electronics.

Ji-Young Oh¹, Chi-Sun Hwang¹, Yong Suk Yang¹

¹Reality Device Research Division, ICT Creative Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea.

ACS Applied Materials & Interfaces

|October 14, 2022

Summary

This summary is machine-generated.

Researchers developed a new self-attachable and stretchable interface (SASI) for seamless interconnection of rigid and soft electronics. This innovation enables instant, re-attachable, low-resistance electrical contacts for advanced wearable devices and robotics.

Keywords:

3D electronics deformable interface modular self-attachable stretchable

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Area of Science:

Materials Science
Electrical Engineering
Robotics

Background:

Stretchable electronics are crucial for wearable devices and robotics but often hindered by bulky connection systems.
Existing interconnection methods for stretchable electronics can be complex and limit device integration.

Purpose of the Study:

To introduce a novel dual-functioned self-attachable and stretchable interface (SASI) for direct interconnection of rigid and soft electronics.
To overcome limitations of bulky connection systems in current stretchable electronic applications.

Main Methods:

Fabrication of SASI using an embedded transfer process, creating a sticky and stretchable substrate with serpentine conductors.
Control of adhesion properties through mixed elastomer ratios.
Characterization of stretchability, adhesion, and electrical resistance of the SASI.

Main Results:

SASI demonstrates high stretchability (∼290%) and instant adhesion to metal surfaces, forming conductive paths.
Achieved low-resistance (0.85 ohms in 0.25 mm²) self-attachable and re-attachable electrical contacts without heat or pressure.
Enabled the formation of 3D curved and modular electronics by compiling functional blocks.

Conclusions:

SASI offers a novel strategy for assembling functional chips and modules in stretchable electronics.
This interface facilitates user-customizable, onboard integrated electronics for real-world applications.
The SASI technology paves the way for more advanced and integrated stretchable electronic systems.