Manufacturing method of small-size circuit boards

Abstract

The invention provides a manufacturing method of small-size circuit boards. The manufacturing method comprises the steps: forming is conducted, specifically, through the design of cutting lines, the circuit boards can still be connected into boards after being subjected to blanking forming, especially for manufacturing of the small-size circuit boards, positioning holes do not need to be designedin all the circuit boards, thus shape damage of the circuit boards is reduced, the production efficiency of the circuit boards is improved, and the yield of the circuit boards is increased; and detecting is conducted, specifically, hole quality detection is conducted on the circuit boards one by one firstly, the quality, in the aspects of hole position, hole diameter, hole blocking condition and the like, of via holes can be judged firstly by comparing the difference of the illumination intensity, detected by a photoelectric sensor, of a light source passing through the standard holes and theto-be-detected holes, then the quality of all loops of the circuit boards is detected, and the short circuit situation of all the loops of the to-be-detected circuit boards is judged by comparing thedifference of inductance values, detected by a probe, of all the loops of the standard circuit boards and all the loops of the to-be-detected circuit boards. The manufacturing method has the advantages of convenient machining, high production efficiency, high detecting efficiency, accurate detecting and high checking efficiency.

Description

technical field [0001] The invention relates to the technical field of printed circuit boards, in particular to a method for manufacturing small-sized circuit boards. Background technique [0002] With the development of circuit boards in the direction of small size, light weight, three-dimensional installation and high connection reliability, there are more and more small-sized circuit boards in the printed circuit board industry. Shape processing and finished product inspection are essential in the process of circuit board production. There are two least processes, among which, the shape processing is specifically to use the shape processing equipment (such as punching machine, edge milling machine) to process the imposition products into the single board form or delivery panel form required by the customer; the finished product inspection is specifically the finished circuit Before the board is shipped, use the naked eye or borrow tools (such as a magnifying glass, etc.) ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the shape of the small-sized circuit board is processed by milling machine technology. However, due to the small area of ​​the small-sized circuit board, it is difficult to design positioning holes in the board, which makes it difficult to fix the small-sized circuit board during the process of shape processing, resulting in Problems such as deviation and breakage of the circuit board shape; moreover, when the size of the circuit board is smaller than the dust collection device of the processing equipment, the circuit board is easily sucked and lost by the dust collection device during processing; in addition, for small-sized circuit boards During the inspection, due to the small size of the board, it is inconvenient for the inspector to take it, which reduces the inspection efficiency. Moreover, during the inspection process, the hand of the inspector easily blocks the inspection position of the board, resulting in the outflow of the problem board

Images