Treatment method for PTH communication hole burr

A treatment method and burr technology, applied in the processing of insulating substrates/layers, electrical components, printed circuit manufacturing, etc., can solve problems such as poor draping effect, achieve simple operation, improve work efficiency, and reduce the number of stacked boards Effect

Active Publication Date: 2018-11-06
江西旭昇电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the problem of burrs in PTH connecting holes, in the existing technology, the technical means of reducing the number of stacked plates and removing burrs is mainly used. When the diameter is less than 1.5mm, the effect of removing the front by the above method is not good

Method used

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  • Treatment method for PTH communication hole burr
  • Treatment method for PTH communication hole burr

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be further described below.

[0023] It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0024] Please refer to figure 1 and figure 2 ,in figure 1 The flow chart of the processing method of the PTH connecting hole burr provided by the present invention; figure 2 It is a schematic diagram of the connected hole structure after the treatment ...

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Abstract

The invention discloses a treatment method for a PTH communication hole burr. The treatment method for a PTH communication hole burr comprises the following steps: drilling at a reserved position of an A hole; drilling at a reserved position of a B hole, wherein the B hole and the A hole are intersected to form a communication hole; step S3: drilling again at the same position of the A hole to form a C hole, wherein the shape and size of the C hole are the same as those of the A hole. The treatment method for a PTH communication hole burr provided by the invention has the advantages of simpleprocess, and the product has no burr after the washing, scouring and electroplating processes.

Description

technical field [0001] The invention relates to the technical field of printed circuit board production, in particular to a method for processing PTH connecting hole burrs. Background technique [0002] PCB (Printed Circuit Board, printed circuit board) is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components. PTH (Platating Through Hole, metallized hole) is generally provided on the PCB, and copper is provided inside the hole to realize electrical conduction. [0003] With the technological development of the electronics industry, in order to meet customer requirements, the PTH holes in PCB boards are often required to be designed as connecting holes. The intersection of holes and holes will produce burrs, which are obvious after electroplating. In order to solve the problem of burrs in PTH connecting holes, in the existing technology, the technical means of reducing the number of stacked p...

Claims

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Application Information

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IPC IPC(8): H05K3/00
CPCH05K3/0047H05K3/0055H05K2203/025
Inventor 董猛卢重阳卢根平汤文波
Owner 江西旭昇电子有限公司
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