Aluminum-based circuit board manufacturing method for preventing oil dropping caused by direct etching

A production method and etching technology, which can be used in chemical/electrolytic methods to remove conductive materials, print circuit secondary treatment, and apply non-metallic protective layers, etc., which can solve the problem of board edge deformation, blackening, and affecting customer products Signal transmission performance and other issues, achieve the effect of smooth milling edge, solve hole burrs, improve product quality and work efficiency

Inactive Publication Date: 2015-05-20
周海梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current production method of aluminum-based circuit boards still uses the production method and process of ordinary epoxy resin circuit boards. The edges and apertures of the boards are prone to deformation and blackening, which affects the signal transmission performance of client products.

Method used

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Embodiment Construction

[0007] The present invention is a manufacturing method for preventing direct etching of aluminum-based circuit boards from oil. It includes the following steps: Step 1, light drawing template production: firstly, graphic design is performed on the template and the engineering file processing is performed according to the production process parameters. The good documents are impositioned, and the black film is produced by a high-precision laser light plotter with a resolution of 20240dpi. The light-drawn film is washed, developed, fixed, cleaned, and air-dried, and then a 200x magnifying glass is used for the finished film. Carry out the inspection, and finally use the 3KW exposure machine to copy the diazo film with the inspected negative film as the mother, and check the copied diazo film. Step two, the production of cutting and drilling: first use an electric shearing machine to open the high-frequency aluminum-based copper clad laminate required for production according to th...

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Abstract

The invention discloses an aluminum-based circuit board manufacturing method for preventing oil dropping caused by direct etching. The method comprises a first step of manufacturing a light painting template, a second step of cutting and drilling, a third step of manufacturing a surface pattern, a fourth step of etching, a fifth step of performing solder mask, character and surface solderability treatment, and a sixth step of forming. The method of the invention is high in manufacturing precision and effectively improves the product quality and working efficiency, and a aluminum-based circuit board manufactured by the method has stable performance.

Description

Technical field [0001] The invention relates to the technical field of circuit boards, in particular to a method for manufacturing an aluminum-based circuit board to prevent oil from being directly etched away. Background technique [0002] With the development of electronic products in the direction of miniaturization, digitalization, high frequency, and high reliability, metal-based circuit boards not only have the excellent high heat resistance, high heat dissipation, and excellent dimensional stability of ordinary circuit boards, but also With high frequency, the insulating dielectric layer has good strength, flexibility and high breakdown voltage resistance. However, the current production methods of aluminum-based circuit boards still follow the production methods and processes of ordinary epoxy resin circuit boards, and the board edges and apertures are likely to cause deformation and blackening, which affect the signal transmission performance of client products. Summary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/06H05K3/28
Inventor 周海梅
Owner 周海梅
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