Transfer print method with shape memory effect

A technology of memory effect and memory polymer, which is applied in the direction of transferring ink from the original manuscript, and can solve problems such as inappropriateness

Inactive Publication Date: 2015-12-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional rigid inorganic integrated devices are difficult to withstand large deformation and are not suitable for integration with soft, non-planar tissues such as the human body.

Method used

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  • Transfer print method with shape memory effect
  • Transfer print method with shape memory effect
  • Transfer print method with shape memory effect

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Experimental program
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Embodiment Construction

[0018] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] figure 1 It is a process flow diagram of the method of the present invention, the method may further comprise the steps:

[0020] 1) Prepare two parts of shape-memory polymer precursors, add magnetic nanoparticles to one of the shape-memory polymer precursors and stir evenly, and then mix the shape-memory polymer precursor containing magnetic nanoparticles and the non-magnetic nanoparticle The shape memory polymer precursor is poured alternately on the mold 1 with a concave microstructure on the surface to be solidified, and after demoulding, part of the shape memory polymer 2 contains magnetic nanoparticles and has a convex microstructure on the surface;

[0021] 2) Place the shape memory polymer 2 on the functional unit 3 of the growth substrate 4, and make the protruding microstructure on the surface of the shape memory ...

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Abstract

The invention discloses a transfer print method with the shape memory effect, and belongs to the technical field of engineering materials, flexible electronic preparing and mechanical experimental equipment. According to the method, a shape memory polymer with magnetic nanometer particles, functional units and a mold with a concave microstructure on the surface are utilized, the steps that equal pressure and a radio frequency electric field are exerted on the shape memory polymer are carried out, transfer printing of the functional units to a flexible base body can be selectively carried out, and the transfer print method is particularly suitable for preparing automatically-controlled large-scale inorganic flexible expandable electronic devices.

Description

technical field [0001] The invention relates to a transfer printing method with shape memory effect, and belongs to the technical fields of engineering materials, flexible electronic preparation and mechanical experiment equipment. Background technique [0002] Electronic integrated devices based on inorganic semiconductor materials have the characteristics of good performance and high reliability. They play a key role in promoting the development of information technology and are an important part of modern information systems. However, traditional rigid inorganic integrated devices are difficult to withstand large deformations and are not suitable for integration with soft, non-planar tissues such as the human body. In order to further promote the integration of information and people and meet the needs of electronic devices in health care, stretchable and flexible inorganic electronics have attracted extensive attention in recent years. Extensible and flexible inorganic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/03
Inventor 冯雪黄银程志强侯国辉
Owner TSINGHUA UNIV
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