A low-temperature bending and torsion tester and testing method for resistive variable film

Abstract

The invention provides a low-temperature bending and twisting tester for a resistive film and a testing method. The tester includes: a bending device for bending and twisting the resistive film at an adjustable angle; and controlling the number of bends and twists of the bending device. A measurement and control system that measures the speed, bending degree, torsion angle and the volt-ampere characteristic curve of the resistive film during the bending and torsion test; a low-temperature system that provides the low-temperature environment for the resistive film required for the bending and torsion test according to the control instructions of the measurement and control system; this system The invented tester and testing method can realize bending and twisting experiments simultaneously or separately, and can adapt to test samples of different lengths and widths. It has a simple structure and is easy to operate; it can adjust the bending and twisting angles to achieve different degrees of bending and torsion experiments. It can be applied to various flexible films, especially to meet the fatigue testing of resistive films at low temperatures, to estimate the life of corresponding electronic devices before they are put into use, and to ensure the quality of the product.

Description

technical field [0001] The invention relates to the technical field of fatigue testing of flexible electronic devices, in particular to a low-temperature bending and twisting tester and a testing method for a resistive variable thin film. Background technique [0002] In recent years, the research and application of flexible electronic devices, especially flexible thin-film resistive switching devices, have been extensive, such as flexible batteries, flexible displays, flexible mobile phones, flexible memories, etc. These devices are widely favored by people because of their small size and novel functions. focus on. Compared with traditional rigid or three-dimensional electronic devices, flexible thin-film devices have many advantages such as light weight, good flexibility, drop resistance, and easy processing. The research and development of flexible thin film devices is in the initial stage, and the stability of the performance of flexible thin film devices has yet to be ...

AI Technical Summary

Problems solved by technology

Traditional fatigue detection devices are mostly used in metal materials, which are easy to cause damage to flexible films, and have the disadvantages that the number of bending is difficult to control, and there is no professional fatigue detection tool.

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