Method for preparing conductive pattern of 5g antenna element by selective thickening and differential etching
A conductive pattern and differential etching technology, which is applied in the reinforcement of conductive patterns, printed circuits, electrical components, etc., can solve the problems of low efficiency, high cost, and poor process accuracy, and achieve thin coating, high precision, and efficient preparation. Effect
Active Publication Date: 2022-07-19
光臻精密制造(苏州)有限公司
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Problems solved by technology
[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor accuracy, low efficiency, and high cost of the existing process for preparing 5G antenna oscillator conductive patterns, thereby providing a method for selectively thickening and differential etching to prepare 5G antenna oscillator conductive patterns
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Embodiment 1
[0047] This embodiment provides a method for selectively thickening and differentially etching a conductive pattern for a 5G antenna vibrator, such as figure 1 shown, including the following steps:
[0048] S1. Provide plastic fixings
[0049] The vibrator has the function of guiding and amplifying electromagnetic waves, and is one of the key components of the antenna. Traditional antenna vibrators are mainly made of metal materials, but in the era of 5G communication, the structure of the antenna will undergo major changes: on the one hand, the number of 5G antenna single-sector vibrators reaches 64 to 128, or even 256. Using metal materials to make vibrators will This leads to problems such as high cost and substantial increase in weight; on the other hand, 5G operating frequencies are getting higher and higher, wavelengths are getting shorter and shorter, and the dimensional accuracy of the vibrator is getting higher and higher, and the dimensional accuracy of the vibrator...
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Abstract
The invention belongs to the technical field of conductive pattern production, and in particular relates to a method for preparing a conductive pattern of a 5G antenna vibrator by selective thickening and differential etching. The surface of the layer part is selectively thickened to obtain a thickened conductive layer with uneven thickness, and then all the surfaces of the thickened conductive layer are etched with equal thickness to remove all the first metal layers, and a three-dimensional conductive pattern can be prepared at one time, which is similar to ordinary conductive patterns. Compared with other pattern transfer methods such as dry film, three-dimensional conductive patterns can be efficiently prepared; at the same time, by preparing the second metal layer through the "normal phase" insulating layer, the initial conductive layer can be thickened without the need to make barrier lines, and the accuracy of the conductive lines is high. Moreover, it is only necessary to increase the thickness along the direction of the conductive pattern line, and subsequent removal of the conductive layer in a large area and a large volume is not required, which saves costs and improves efficiency.
Description
technical field [0001] The invention belongs to the technical field of conductive pattern fabrication, and in particular relates to a method for preparing a conductive pattern of a 5G antenna vibrator by selective thickening and differential etching. Background technique [0002] The fifth-generation mobile communication technology (5th-Generation, 5G for short) is the latest generation of cellular mobile communication technology. Its peak theoretical transmission speed can reach tens of gigabits per second, which is hundreds of times the transmission speed of 4G networks. The vibrator is the most important functional component inside the antenna, which has the function of guiding and amplifying electromagnetic waves. Its structural design, manufacturing method and assembly process are the guarantees of the reliability, stability and durability of the antenna performance. The traditional antenna vibrator manufacturing process is die-casting of metal materials (aluminum alloy...
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IPC IPC(8): H01Q1/38H05K3/24
CPCH01Q1/38H05K3/243
Inventor 郝家胜
Owner 光臻精密制造(苏州)有限公司