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Design method of preventing dust entering RF antenna

A design method and dust technology, applied in electrical components, printed circuit manufacturing, printed circuits, etc., can solve problems such as RF not working, and achieve the effect of enhancing the output of good products, increasing productivity efficiency, and large economic benefits

Inactive Publication Date: 2018-01-26
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the process of PCBA sub-board, the chip or dust of the PCB substrate enters the RF antenna, causing the RF to not work

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with specific examples.

[0014] A design method to solve the problem of dust entering the RF antenna. When PCBA is divided, the distance between the PCB cutting point and the RF device is not less than 15mm; the RF device is provided with a film, and the film covers the RF surface to prevent dust from falling into the RF device. poor conduction.

[0015] The reason why the general RF device test does not work is mainly due to the falling of dust, which hinders the contact between the shrapnel. During the test, the RF antenna can suddenly work normally after several tests. After testing and pressing, part of the dust is separated from the shrapnel, and the RF antenna can work normally. However, normal work in this situation is unstable, and the same problem may occur in the future. This is equivalent to planting an uncertain time bomb, and problems may occur at any time. Move the PCB cutting point, a...

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PUM

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Abstract

The invention discloses a design method of preventing dust entering an RF antenna, and belongs to the technical field of mobile phone PCBA board card. The design method of preventing dust entering anRF antenna is characterized in that during the process of PCBA board dividing, the distance between a PCB cutting point and an RF device is no less than 15mm; and the RF device is provided with a film, and the film covers the surface of the RF device for preventing bad conduction by preventing the dust entering the RF device. The design method of preventing dust entering an RF antenna is suitablefor all the board cards with an RF antenna device, and can effectively control occurrence of bad testing of the RF device, thus saving high cost, improving the production power, saving the cost from manpower, and reducing the fraction defective so as to reduce maintenance, scrapping and cost.

Description

technical field [0001] The invention relates to the technical field of mobile phone PCBA boards, in particular to a design method for solving the problem of RF antennas entering dust. Background technique [0002] At present, in the field of mobile phone PCBA boards, the application of RF antennas is very common. RF is used to receive and transmit signals. The quality of RF directly affects the quality of signal reception and transmission. Therefore, the quality of RF is very important. However, in the current production, the defect rate of RF antennas has always been relatively high, even sometimes as high as 10%. At present, all defects are found through testing. Once a defect occurs in RF, it cannot be seen from the appearance. [0003] After a long period of analysis and confirmation, the cause of the RF antenna quality problem was found. The defective RF antennas that occurred in the test did not show any abnormalities in appearance, but after analysis and confirmati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00
Inventor 张小行
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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