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Open-circuit line repairing method in circuit board

A circuit board and circuit technology, applied in the direction of printed circuit maintenance/correction, printed circuit secondary processing, etc., can solve the problems of repairing position falling off, personnel problems, increasing enterprise burden, etc., to achieve firm fixation, improve repair quality, reduce The effect of production and replenishment costs

Active Publication Date: 2016-02-03
VICTORY GIANT TECH HUIZHOU CO LTD
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AI Technical Summary

Problems solved by technology

At present, although circuit board manufacturers repair open circuits in circuit boards, there are problems with personnel during the production process, and the repaired position will still fall off, resulting in defective products and increasing the burden on the enterprise

Method used

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Embodiment Construction

[0022] In order to allow those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the examples.

[0023] A method for repairing an open circuit in a circuit board, comprising the following steps:

[0024] S1. Select defective circuit boards from the production line; then manually determine the position of the defective circuit with open circuit in the circuit board, which is convenient for the next step to carry out precise spot welding on the open circuit in the circuit board, which improves the efficiency.

[0025] S2. Since the surface of the circuit board is coated with a layer of solder resist ink for protecting the circuit board, the solder resist ink should be scraped off before repairing the circuit, so as to repair the open circuit of the circuit. When scraping off the solder resist ink, it is carried out by manual scraping. The operator uses a repair knife ...

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PUM

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Abstract

The invention discloses an open-circuit line repairing method in a circuit board. The method comprises the following steps: S1, defective circuit boards are selected, and defective lines with open circuits in the circuit boards are determined; S2, a repairing cutter is used for scraping solder-proof printing ink at the open circuit place; S3, the open circuit place is repaired, and the total repaired line length is no more than 10mm; S4, the line after being repaired is detected; S5, the appearance of the circuit board is repaired; and S6, E / T test is carried out on the circuit board. The repaired line open circuit place is firmly fixed, stability is strong, the line after the line open circuit place is repaired is consistent with the original line, functions are the same, the repairing quality is greatly improved, and the appearance and the conduction of the circuit board after being repaired meet requirements of the circuit board; and when the method is adopted to repair the line open circuit, repairing of defective products can pass the yield rate at one time, scrap of the circuit board is greatly reduced, the production cost and the supplement material cost are reduced, and the repairing mode is safer and more reliable.

Description

technical field [0001] The invention belongs to the technical field of circuit board repair, and in particular relates to a method for repairing an open circuit in a circuit board. Background technique [0002] The circuit board is one of the important parts of the electronic industry. It is the support body of electronic components and the carrier of electrical connection. The circuit board is conducted through the lines arranged on the circuit board. In the production process, due to insufficient equipment and production conditions, there will be many defective products with open circuits, which will affect the first-time yield of the product, and increase the company's scrap cost and refill cost, thereby affecting the company's operating profit. In order to save this part of the circuit board and avoid waste, it is necessary to repair the open circuit of this part of the circuit to make it meet the original design requirements of the circuit board and save production cost...

Claims

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Application Information

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IPC IPC(8): H05K3/22
CPCH05K3/225
Inventor 袁誉东周定忠张晃初
Owner VICTORY GIANT TECH HUIZHOU CO LTD
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