Preparation process and application of glass sensor capable of simultaneously exposing, developing and etching two surfaces

Abstract

The invention relates to a preparation process of a glass sensor capable of simultaneously exposing, developing and etching double surfaces. The preparation process comprises the following steps: cleaning glass, arranging a UV-Cut coating, preparing ITO (Indium Tin Oxide) glass, coating photoresist on the double surfaces, exposing and developing the double surfaces of the ITO glass, etching the double surfaces of the ITO glass, printing and carrying out laser edge wiring, and printing peelable glue. The invention also provides a novel glass sensor which is prepared by the preparation process. By arranging the UV-Cut coating, simultaneous exposure, development and etching on the two sides of the glass are realized, mutual influence on ITO exposure during double-side exposure can be avoided, poor appearance such as scratches and foreign matters caused by a single-side two-time etching process can be effectively prevented, and the appearance yield is increased from 80% to 95%; an edge wiring yellow light process is canceled, a silver paste printing process is adopted, etching is not needed, the functional problems of wire breakage, incomplete etching and the like are solved, and the electrical yield is improved from 90% to 98%; the preparation process is simplified, the production efficiency is improved, and the production cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a preparation process and application of a glass sensor with simultaneous exposure, development and etching on both sides. Background technique [0002] At present, in order to ensure better safety and higher strength, a large part of the touch screen in the field of vehicle and industrial control still uses glass sensor as the functional layer structure. In the existing glass sensor process, Mo-Al-Mo is used as the conductive material for edge traces, and the minimum line width and line spacing are only 20um / 20um. Since the concentration of Mo-Al-Mo etching solution is difficult to control within a relatively stable range, when When the concentration of the etching solution is too high, the edge traces will be side-etched, that is, over-etched, and in severe cases, the edge traces will be disconnected; The edge trace connection has problems such as side etching, disconnec...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of glass sensor preparation method to solve the appearance and function problems of scratches, foreign objects, broken wires, and unclean etching in the existing glass sensor manufacturing process, improve the process yield, and reduce the loss of manpower and material resources. Reduce production costs, simultaneously reduce process flow, and improve production efficiency

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