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 and a test method for variable resistance films. The tester comprises a bending and twisting device for bending and twisting a variable resistance film in an angle adjustable manner; a measurement and control system used for controlling the bending and twisting time, the bending and twisting speed, the bending degree and the twisting angle of the bending and twisting device and measuring the volt-ampere characteristic curve of the variable resistance film in a bending and twisting test process; and a low-temperature system for providing a low-temperature environment required by the bending and twisting test for the variable resistance film according to a control instruction of the measurement and control system. The tester and the test method provided by the invention can be used for simultaneously or respectively performing bending and twisting tests, and can adapt to test samples with different lengths and widths, and the tester is simple in structure and is convenient to operate; the bending and twisting angles can be adjusted to achieve bending and twisting tests of different degrees, so the tester can be applied to a variety of flexible films and particularly satisfies the requirements of the fatigue detection on the variable resistance films at low temperature, so as to predict and measure the service lives of corresponding electronic devices before the electronic devices are applied and guarantee the product quality.

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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