Development of Revolutionary All-Printed Flexible Pressure Sensor
AIST in collaboration with Ajinomoto Co., Inc. has successfully developed a polyamino acid material which exhibits piezoelectricity. Based on this the research group has fabricated a sensor array which is printed on a flexible substrate by forming the material into ink with a structure that reduces current leakage. The new development uses the printed fabrication technology in producing the sensor array which helps by increasing the sensor array size, which would allow affordable sensors to be supplied in large quantities.
The new technology is expected to contribute to the widespread use of sensor network devices such as watch sensors. This technology has used the method of joining substrates to increase the array size. The pressure sensor is normally subject to pressure from above the device and requires enough joining strength to withstand this pressure, to provide such a strength a technology to structurally increase the strength of the joints between the substrates were developed instead of adhesive which conventionally used to join the flexible substrates together.