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Dry-type milling method of aluminum-based printed circuit board

A printed circuit board, aluminum-based technology, used in printed circuits, printed circuit manufacturing, electrical components, etc., can solve the problems of high edge burrs, sticking to the knife, etc., to reduce the overall viscosity, reduce the processing temperature, and improve the sticking phenomenon. Effect

Inactive Publication Date: 2020-06-09
XIAN MICROELECTRONICS TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high edge burrs and sticky knife during dry milling of aluminum-based printed circuit boards, and to provide a dry-type milling method for aluminum-based printed circuit boards

Method used

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  • Dry-type milling method of aluminum-based printed circuit board
  • Dry-type milling method of aluminum-based printed circuit board
  • Dry-type milling method of aluminum-based printed circuit board

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Embodiment Construction

[0022] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...

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Abstract

The invention discloses a dry-type milling method of an aluminum-based printed circuit board, and belongs to the field of metal-based printed circuits. The dry-type milling method of the aluminum-based printed circuit board comprises the steps of 1) placing an epoxy core board below the aluminum-based printed circuit board, and fixing the epoxy core board and the aluminum-based printed circuit board into a whole; and 2) milling the epoxy core plate and the aluminum-based printed circuit which are fixed into a whole, and processing to a preset shape to finish the processing. According to the dry-type milling method of the aluminum-based printed circuit board, the epoxy core board is cushioned below the aluminum-based printed circuit board when the aluminum-based printed circuit board is processed, and aluminum scraps generated during cutting of a milling cutter are mixed with resin scraps on the epoxy core board, so that the overall viscosity of the scraps can be reduced, and the phenomenon of knife sticking is improved; and meanwhile, more heat can be taken away when the resin scraps are discharged, and the machining temperature is reduced.

Description

technical field [0001] The invention belongs to the field of metal-based printed circuits, in particular to a dry milling method for an aluminum-based printed circuit board. Background technique [0002] With the rapid development of the electronic industry and the improvement of component assembly density and integration, the power density of electronic products is getting higher and higher, and the corresponding heat generation is higher. The conventional PCB substrate FR-4 is a poor conductor of heat, and it is not easy to dissipate heat. The local heat of electronic equipment cannot be dissipated in time, which may easily lead to high temperature failure of local electronic devices. Aluminum-based printed circuit board is undoubtedly one of the effective means to solve the problem of heat dissipation. Aluminum-based printed circuit board is a kind of copper clad laminate with good heat dissipation function. [0003] In the production of aluminum-based printed circuit bo...

Claims

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Application Information

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IPC IPC(8): H05K3/00
CPCH05K3/0044
Inventor 杨乐
Owner XIAN MICROELECTRONICS TECH INST
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