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Intelligent four-wire point selection method of PCB electrical performance test point

A technology of electrical performance and test points, which is applied in the field of intelligent four-wire point selection, can solve the problems of wrong point selection and missed point selection, and achieve the effect of test guarantee

Active Publication Date: 2015-03-18
SHENZHEN MASONE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During inspection, it is necessary to select different holes in different networks for testing. This process is called point selection. In the existing technology, people generally select points manually based on experience, and it is very likely to select wrong points or missed points.

Method used

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  • Intelligent four-wire point selection method of PCB electrical performance test point
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  • Intelligent four-wire point selection method of PCB electrical performance test point

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] refer to figure 1 As shown, the present invention discloses an intelligent four-wire point selection method for PCB electrical performance test points, which is used for testing holes on the PCB board. Since in the existing PCB production process, there may be a series of problems such as lack of copper pillars and permeation plating in the produced products, so before conducting electrical performance tests on the PCB, it is necessary to check whether each hole on the PCB is Plating through qualified inspection. In the PCB field, the upper and lower sides of the PCB surface are called the top layer and the bottom layer respectively, the top layer is called the C side, and the bottom layer is called the S side. In this embodiment, an intelligent four-wire point selection method for a PCB electrical performance test point disclosed by the presen...

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Abstract

The invention discloses an intelligent four-wire point selection method of a PCB electrical performance test point, for examining holes in a PCB. The method involves selecting plated though holes according with requirements as test holes through screening the holes in the PCB. The point selection method provided by the invention replaces a conventional hand-operated point selection process and neither screens the holes needing to be tested nor selects the holes more than needed, thereby providing a forceful guarantee for the test of the PCB.

Description

【Technical field】 [0001] The invention relates to the technical field of PCB testing, and more specifically, the invention relates to an intelligent four-wire point selection method for PCB electrical performance test points. 【Background technique】 [0002] On a PCB board, the upper and lower sides of the PCB surface are called the top layer and the bottom layer respectively, and the inner layer in the middle is usually called the middle layer. There can be multiple middle layers of a PCB board. The above three types of layers are on different PCB boards. Different layers are independent of each other and are all signal layers; the drilled layer is connected to the signal layer of the PCB board, and the drilled layer is divided into several types. In specific applications, the layer number and the start and end of the signal layer connected to the drilled layer will be indicated. The layer number of the layer. The part of the copper sheet covered with green oil on the top o...

Claims

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Application Information

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IPC IPC(8): G01R31/02
Inventor 李根李学光杨朝辉石磊
Owner SHENZHEN MASONE ELECTRONICS
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