Screen printing plate and manufacturing method thereof

Abstract

The invention relates to a printing screen which comprises a screen frame, a silk screen and a metal sheet with a screen printing pattern; the silk screen is arranged at the screen frame in a tightening way; the metal sheet is fixed on the surface of the silk screen; the screen printing pattern of the metal sheet is ablated by the laser; the precision of the screen printing pattern is +0.005 to +0.02mm or -0.02 to -0.005mm. The invention also relates to a manufacturing method of the printing screen. The printing screen with high precision is beneficial to a circuit board with high density to carry out precise screen printing, can effectively prevent the scrapping of the circuit board caused by the screen printing and improve the yield of manufacturing the circuit board.

Description

technical field [0001] The invention relates to a printing screen plate and a manufacturing method thereof. Background technique [0002] Screen printing is a multi-purpose printing technology, which has always played an important role in the field of circuit boards. It is the key to realize the precise coating of ink, glue and solder on circuit boards. In the process of circuit board production, when screen printing, the circuit board is placed directly under the printing screen with the screen printing pattern, so that the ink, viscose and solder pass through the screen printing of the screen under the extrusion of the scraper. The pattern is applied to a predetermined area on the circuit board. [0003] The production accuracy of the screen printing pattern of the printing screen is closely related to the printing accuracy of the printing screen. Printing screens are usually made of nylon, polyester, silk, metal mesh or sheet metal. When making metal sheet printing scr...

AI Technical Summary

Problems solved by technology

This method has low precision in making screen printing patterns, and it is easy to form burrs on the screen printing patterns of the metal sheet, thereby affecting the effect of subsequent printing, and cannot adapt to precision printing, and this method cannot process complex screen printing patterns

[0004] With the gradual development of circuit boards in the direction of miniaturization and high density, high-precision screen printing is required in the process of circuit board production. Low, can no longer meet the needs of high-density circuit board production, and even cause the circuit board to be scrapped, thus affecting the yield rate of circuit board production

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