A method and device for synchronous printing and photocuring

Abstract

The invention relates to a method and equipment for synchronous printing and photocuring. The method comprises the following steps of printing and photocuring. The printing step and the photocuring step are synchronously carried out on the same PCB substrate, and the method is characterized in that the synchronous time of printing and photocuring for the same PCB substrate is 10-90% of the printing time or 10-90% of photocuring, the photocuring step is a laser direct imaging step, and a light source used for laser direct imaging is ultraviolet light. The method and equipment for synchronous printing and photocuring solve the problem of document timeliness; due to the fact that the printing occurs in the printing process, especially after a line is expanded, the line is not accurate if theline is directly and comprehensively cured; and the method for synchronous printing and photocuring is adopted, so that the line correction can be directly carried out.

Description

technical field [0001] The invention belongs to the field of circuit board manufacturing, and in particular relates to a printing method of ink on a circuit board, and particularly relates to a method and equipment for synchronous printing and photocuring. Background technique [0002] The traditional method of using UV light to make circuit boards is to coat the circuit board with ink, then cover it with a film negative, and then cure it with ultraviolet light, then wash off the uncured part, and the remaining part is the cured part. When this traditional method is used to prepare very high-density (≤30um) circuit boards, its alignment and control are insufficient, the processing process is lengthy, and a large number of film negatives are required, and the production and maintenance of film negatives require a lot of auxiliary materials and materials. Chemicals, temperature and humidity control facilities and other factors make it unable to meet the processing and manufact...

AI Technical Summary

Problems solved by technology

[0005] However, the combination of ink printing and UV (ultraviolet light) direct writing technology is not perfect at present, especially the advantages and disadvantages of ink printing and UV direct writing are lacking.

In the patent CN102120387B, although the inkjet printing device for fully printed electronics and circuit boards is disclosed, the front end performs ink printing, and the rear end uses photocuring, but the rear end photocuring uses universal photocuring, not UV light. Direct writing technology, so it is difficult to match the advantages and disadvantages of ink printing and UV light direct writing