Screen printing film and surface modification method of the same

Abstract

A screen printing film and a surface modification method of the same are provided. The method includes providing a substrate having a PVA film on at least one surface of the substrate. The surface of the substrate is modified by generating a heating source and a plasma source, wherein a heating temperature to the substrate is between 100° C. and 500° C. The step of generating the heating source may be prior to, after, or simultaneous with the step of generating the plasma source.

Description

technical field [0001] The invention relates to a screen printing device, and in particular to a screen printing film and a surface modification method thereof. Background technique [0002] Due to technological progress, precision screen printing has become the main manufacturing technology for printing electrode silver wires on solar cells or solar panels. The screen-printed film is the printed mask that defines the pattern of the electrode lines. After attaching it to the solar panel to be printed and applying a paste containing a conductive metal, usually silver, the electrode printing can be completed. The screen printing film can be reused after scraping off the residual paste until the surface paste is difficult to scrape off or the film itself is damaged. [0003] The screen printing film can be made of polymer film or metal film, the latter provides good mechanical strength and high reusability, but is quite expensive to manufacture. The polymer film is low in co...

AI Technical Summary

Problems solved by technology

After swelling, the tension of the screen printing film will decrease and it will not be durable, and the line width will change or be uneven, so it is difficult to improve the printing quality

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