Flexible lead, preparation method of flexible electronic device and flexible wireless energy supply device

Abstract

The invention provides a flexible lead, a preparation method of a flexible electronic device and a flexible wireless energy supply device. The method comprises steps that a base material formed through combining a rigid substrate, a sacrificial layer and a functional film is provided; a femtosecond laser is utilized to cut the functional film of the base material such that the functional film is formed with a planar wire structure; the sacrificial layer is removed, and the planar wire structure is separated from the rigid substrate; a two-dimensional flexible wire is formed on the planar wirestructure; or the planar wire structure is assembled to a pre-stretched flexible substrate, pre-strain of the flexible substrate is released, and the planar wire structure is bent to form a three-dimensional flexible wire . The method is advantaged in that the flexible wire with high precision, large scale and no pattern limitation can be prepared, unique advantages of fast property, environmentalprotection, low cost, high resource utilization rate and insensitivity to the external environment can be further realized, and the method is suitable for preparing 2D and 3D flexible wires.

Description

technical field [0001] The disclosure relates to the field of electronic technology, in particular to a flexible wire, a method for preparing a flexible electronic device, and a flexible wireless energy supply device. Background technique [0002] In recent years, in order to meet people's needs for the flexibility of electronic devices, flexible electronic technology has developed rapidly, and many types of flexible electronic devices have emerged, such as flexible sensors, flexible displays, artificial electronic skins, and various wearable electronic products. . Among them, wearable electronic devices for health monitoring and medical treatment already have a trillion-level market. [0003] Wearable electronic devices can conform to the biological characteristics of the soft curved surface of human skin, and monitor human physiological signals more accurately and continuously. A large category of wearable electronic devices is inorganic flexible electronic devices, whic...

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Problems solved by technology

[0008] First, special lithography machines and clean rooms are required and the process is cumbersome, the experimental conditions are high, the experimental preparation is difficult and time-consuming, and the experimental results in lithography are sensitive to the external environment, and multiple environmental parameters need to be controlled;

[0009] Second, the preparation process is a chemical treatment process, involving dangerous chemical reagents such as acetone, photoresist, and hydrofluoric acid. The waste liquid needs special treatment, which pollutes the natural environment;

[0010] Third, the photolithography process requires additional preparation of a special mask, and the pattern corresponding to each flexible wire needs to prepare a special mask, which is expensive and has a low utilization rate.

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