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Anti-drilling-missing method of secondary drilling of PCB

A PCB board, leak-proof technology, applied in electrical components, printed circuit manufacturing, printed circuits, etc., can solve problems such as increasing labor costs, and achieve the effect of improving drilling efficiency, reducing execution process, and increasing personal output value

Inactive Publication Date: 2017-12-22
奥士康精密电路(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The use of the above inspection methods will undoubtedly increase labor costs, and with the development of the electronics industry, higher requirements are put forward for PCB manufacturers, especially in terms of production efficiency, material costs, and water and electricity savings. Time individual production output must be improved, therefore, it is particularly important to improve the efficiency of drilling

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  • Anti-drilling-missing method of secondary drilling of PCB

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] During the drilling process, due to insufficient control of the number of secondary drills, drilling machine failures, or inspection personnel’s omissions, there are often situations where the second hole is missed, so that the undrilled PCB board is mixed into the drilled PCB board. Create a two-drill mixed board.

[0024] In order to solve the situation of missing drills or less drills in the two-drilling process, please refer to figure 1 , the pre...

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Abstract

The invention relates to the technical field of a PCB drilling method, in particular to an anti-drilling-missing method of secondary drilling of a PCB. The method comprises the following steps that: a PCB drilling machine uses a drilling tool with the diameter of T01 to carry out primary drilling on a hole that connecting an upper layer with a lower layer and needs copper plating on a PCB according to a sub hole pattern; the PCB drilling machine uses a drilling tool with the diameter of T02 to carry out secondary drilling on a hole that is used for fixation or positioning and does not need copper plating on the PCB according to the sub hole pattern; the PCB drilling machine carries out third drilling once on a position for identification on the PCB by using the drilling tool with the diameter of T02 when the primary and second drilling procedures are completed each time; smoothing processing is carried out on the corners of the PCB after drilling; and the holes obtained by the primary, secondary and third drilling are polished. The invention aims at providing an anti-drilling-missing method of secondary drilling of a PCB. Therefore, the hole number can be checked visually; hole reduction or drilling missing is avoided; and the drilling efficiency of the PCB is improved.

Description

technical field [0001] The invention relates to the technical field of PCB drilling methods, in particular to a method for double-drilling and leak-proof drilling of PCB boards. Background technique [0002] PCB drilling is a process of PCB plate making, mainly to punch holes for the board. The drilling process is divided into one drilling and two drilling. The first drilling hole is required for wiring. After the first drilling, it needs to go through the copper sinking process, that is, the hole is plated with copper so that the upper and lower layers can be connected, such as via holes and original holes. etc.; the second drilled hole is required by the structure and does not need to go through the copper sinking process, such as screw holes, positioning holes, heat sinks, etc. The second drill must be behind the first drill, which means that the process is separated. The PCB board is bonded together by several layers of resin materials, and copper foil wiring is used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00
CPCH05K3/0047H05K2203/0214
Inventor 邓万权蒋善刚周睿
Owner 奥士康精密电路(惠州)有限公司
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