Microchip integration for electronic skin, Human skin is an attractive and multifunctional organ with unique properties resulting from flexibility and tolerance.
This allows interaction with the external physical environment through several receptors that are connected to the nervous system. Scientists have long tried to transfer these functions to artificial skin using targeted robot applications. The work of robotic systems is very dependent on the electronic and magnetic detection functions, which are needed for positioning and orientation in space. Microchip integration for electronic skin.
Much research and development has been carried out to implement these functions in a flexible and compatible form.
Recent advances in flexible sensors and organic electronics have created important conditions.
This device can be operated on a soft and elastic surface as long as the sensor captures various physical properties and sends them through the reading circuit.
However, to reproduce genuine leather, it is necessary to connect a large number of individual sensors. This challenging task has become a major obstacle to the realization of e-leather.
The first demonstration was based on a number of sensors that were addressed separately, which inevitably led to a large number of electronic connections. Important technological steps must be taken to reduce cabling efforts.
Advanced electronic circuits such as shift registers, amplifiers, power sources and switches must be combined with separate magnetic sensors to get a fully integrated device.
Researchers from Dresden, Chemnitz and Osaka were able to overcome this obstacle in the new magnetic sensor system with active matrix, which is presented in a recently published article. The sensor system consists of 2 x 4 magnetic sensor arrays, organic initial load registers required for sensor array operation and organic signal amplifier. Specifically, all electronic components are based on organic thin film transistors and are integrated in one platform.
The researchers showed that the system has high magnetic sensitivity and can detect the two-dimensional distribution of magnetic fields in real time. It is also very strong against mechanical deformations such as bending, folding, or destroying. In addition to full system integration, the use of organic charge shift registers is a very important step in the development of active e-skin matrices for robots and wearable applications.
The compatibility and flexibility of these devices are very important for modern and future applications such as soft robotics, implants and prostheses. The next step is to increase the number of surface sensors and expand the electronic housing to a larger surface.