Manufacturing method and testing method of PCB (Printed Circuit Board)

Abstract

The invention relates to the technical field of PCB manufacturing, and discloses a PCB manufacturing method and a PCB testing method.The PCB comprises a mounting base and a testing base, movable grooves are formed \in the front side and the rear side of the top end of the mounting base correspondingly, movable blocks are symmetrically and movably installed in the movable grooves correspondingly, and fixed rods are fixedly mounted at the top ends of the two movable blocks in the two movable grooves. According to the manufacturing method and the testing method of the PCB, a linear motor is controlled to push a movable block to move in a movable groove, at the moment, fixed rods move along with the movable block, when the two fixed rods are relatively close to each other, the PCB can be placed between the two fixed rods, and the four corners of the PCB are placed at the four rubber blocks; and at the moment, a limiting spring located in a limiting groove can drive a limiting block to move towards the middle, the PCB is clamped through the rubber blocks, the two faces of the PCB can be conveniently machined at the same time, and therefore the advantage that the two faces can be machined at the same time is achieved.

Description

technical field [0001] The invention relates to the technical field of PCB production, in particular to a production method and a testing method of a PCB circuit board. Background technique [0002] PCB is a printed circuit board, referred to as a printed board, and is one of the important components of the electronics industry. Almost every kind of electronic equipment, ranging from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, in order to make the electrical interconnection between various components, printed circuit boards must be used. plate. The printed circuit board is composed of an insulating base plate, connecting wires and pads for assembling and welding electronic components, and has the dual functions of a conductive line and an insulating base plate. It can replace complex wiring and realize the electrical connection betwe...

AI Technical Summary

Problems solved by technology

[0003] PCB circuit boards need to go through many processes such as production and testing in the production process. In the process of production and testing, corresponding production devices and testing devices are generally required and different methods are used to realize production and testing. PCB boards in the prior art In the production process, it is generally necessary to place it on a workbench and use external tools or devices to make it, but the workbench in the prior art can only process one side of the PCB board when it is used, and with the development of PCB technology With continuous development, most of the existing PCB boards are double-sided circuit boards. When the traditional workbench is used for processing, it is impossible to process both sides of the PCB board at the same time, and the practicability is low.

[0004] With the improvement of the integration of PCB boards, the existing PCB boards often use the design of double-layer main boards, that is, the two main boards are divided into upper and lower boards and integrated together by welding. Although this manufacturing method can significantly improve the integration of PCB boards and reduce the The footprint of the PCB board is large, but after a long period of use, the PCB is prone to high temperature, resulting in delamination and warping, which affects product quality

[0005] After the PCB manufacturing technology, it is often necessary to detect the PCB board before the subsequent placement work. The existing detection methods generally use test probes to test the various lines of the PCB board to test the connectivity of the circuit, but the existing The most common test methods are to manually place the PCB on the test bench and use test probes for testing. In the process of mass PCB testing, it takes a lot of manpower to test the material and take it out, and the degree of automation is low.

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