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Method for manufacturing PCB short slot

A technology of PCB boards and manufacturing methods, applied in the field of PCB manufacturing, can solve the problems of uneven stress on both sides of the drill bit, low yield rate of PCB boards, and increased production costs, so as to reduce unnecessary scrapping, reduce production costs, and reduce production costs. The effect of improving efficiency

Inactive Publication Date: 2011-04-13
惠州中京电子科技股份有限公司
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AI Technical Summary

Problems solved by technology

In the process of superimposing the drilling holes, since one side of the slot hole has already been drilled, it is easy to have the problem of uneven force on both sides of the drill bit, which will cause the short slot hole to deform, become larger or smaller, resulting in a low yield rate of the PCB board , the production cost increases

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  • Method for manufacturing PCB short slot
  • Method for manufacturing PCB short slot

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Embodiment Construction

[0013] In order to facilitate the understanding of those skilled in the art, the structure of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] as attached figure 1 As shown, the manufacturing method of the short slot hole of the present invention is to increase the guide holes 10 and 11 when the drilling pattern is made, so that when the drills are stacked, the drill tips have a part in a suspended state, which effectively prevents the drill tips from being stressed. Uniform condition.

[0015] During the specific operation, at first, according to the made slot pattern, the drilling process (steps 1 and 2) of the two pilot holes 10 and 11 is symmetrically carried out on both edges of the long diameter of the slot hole (steps 1 and 2). The edges of the guide holes and slots are inscribed. The diameters of the guide holes 10 and 11 need to be less than half of the long diameter of the slot, that is, the two...

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Abstract

The invention relates to the field of printed circuit board (PCB) manufacture, in particular to a method for manufacturing a PCB slot. The method comprises the following steps of: (1) manufacturing a slot graph on a PCB; (2) drilling a guide hole in two edges of the length direction of the slot graph respectively; and (3) performing superposition drilling based on the guide holes by adopting a drill bit, the diameter of which is equal to the short diameter of the slot, wherein the diameter of the guide holes is less than half of the long diameter of the slot. The method can effectively avoid the quality problems of deformation, large slots, small slots and the like in the short slot processing process, reduces unnecessary rejection of the PCB, reduces the production cost of enterprises and greatly improves the production efficiency.

Description

technical field [0001] The invention relates to the field of PCB manufacturing, in particular to a method for manufacturing short slot holes of a PCB board. Background technique [0002] With the development of modern electronic products toward miniaturization, high integration, and high performance, the drilling diameter of printed circuit boards is also required to be smaller and smaller, and the quality requirements are getting higher and higher, especially the production of slots. The main function of the hole is to insert or install parts for the customer, and its quality directly affects the installation and use of the customer's product. If the produced slots have quality defects such as deformation, large slots, and small slots, the client will not be able to perform plug-in operations. The drilling process of printed circuit boards is mostly machine drilling, and the types include round holes and slotted holes. [0003] Slots are divided into long slots and short ...

Claims

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Application Information

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IPC IPC(8): B23B35/00H05K3/00
Inventor 周刚赵志平赵耀
Owner 惠州中京电子科技股份有限公司
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