Multi-pin transfer printing head suitable for conformal transfer of flexible electronic curved surface

Abstract

The invention belongs to the field of material conveying and transfer related equipment, and discloses a multi-pin transfer printing head suitable for conformal transfer of a flexible electronic curved surface. The multi-pin transfer printing head suitable for conformal transfer of the flexible electronic curved surface comprises a mounting column, a passive deformation module, electromagnetic brake modules, an elastic membrane sleeve module and an auxiliary deformation module, wherein the passive deformation module, the electromagnetic brake modules and the elastic membrane sleeve module are integrally arranged on the mounting column; the auxiliary deformation module is arranged in an assorted manner and is used for outputting the shape of a required curved surface which corresponds to a targeted curved surface; the passive deformation module drives an elastic membrane sleeve to form a conformal curved surface which corresponds to the elastic membrane sleeve through up-down movement of a plurality of pins, and a flexible electronic membrane adsorbed to the elastic membrane sleeve is driven to carry out a transfer printing process. Through the multi-pin transfer printing head suitable for conformal transfer of the flexible electronic curved surface, the technical problem that a flexible membrane cannot be attached to a targeted curved surface easily at high efficiency and high precision can be solved, and the multi-pin transfer printing head is particularly suitable for a whole technological process of picking up large-area flexible electronic membranes with irregular curved surfaces from a planar substrate and then carrying out transfer printing of the large-area flexible electronic membranes with the irregular curved surfaces to targeted curved surfaces.

Description

Technical field [0001] The invention belongs to the field of equipment related to material transportation and transfer, and more specifically, relates to a multi-pin transfer head suitable for conformal transfer of flexible electronic curved surfaces. Background technique [0002] Flexible curved electronics has the characteristics of large area, deformability, light weight and non-planar surface, and has the unparalleled advantages of flat silicon-based microelectronics / sensors. Therefore, it has shown huge development space in the fields of aerospace, information communication and health care. And application prospects. However, when transferring flexible curved electrons such as aircraft smart skins, it is often necessary to manufacture or install sensor arrays, drive arrays, and thin film transistor arrays on large-area arbitrary curved substrates, and then connect the devices through large-scale leads. Arrays are interconnected to build a distributed sensor network. In this...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a multi-pin transfer head suitable for conformal transfer of flexible electronic curved surfaces, wherein by redesigning the overall structural composition and layout of the transfer head, And make further improvements to the specific structure of its key components such as passive deformation module, electromagnetic brake module, film sleeve module and auxiliary deformation module, as well as the mutual installation and arrangement between it and the flexible electronic film to be transferred. High efficiency and high precision solve the technical problem that the flexible film is not easy to fit on the target surface, and it is especially suitable for the entire process of picking up and transferring the flexible film with electronic devices and a certain extensible structure from the flat substrate to the target surface process

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