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Drilling method of manufacturing printed circuit board (PCB) and PCB

A drilling method and aperture technology, used in printed circuit manufacturing, electrical components, printed circuit components, etc., can solve problems such as easy formation of burrs, copper etching on hole walls, contact tips, etc., to improve quality and overcome burr problems. Effect

Inactive Publication Date: 2013-05-08
PEKING UNIV FOUNDER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventor found that regardless of the 8-shaped hole or the gourd hole, the related technology is easy to form a burr at the position 3 where the drill hole 1 and the drill hole 2 intersect, that is, the contact tip, which affects the appearance and quality of the PCB.
For example, 8-shaped holes or gourd holes will form burrs, especially when they are designed as PTH (plated through holes), they will form sharp corners after plating, which is easy to pierce the exposed dry film, causing the potion to etch away the copper on the hole wall, which cannot be achieved. Quality requirements

Method used

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  • Drilling method of manufacturing printed circuit board (PCB) and PCB
  • Drilling method of manufacturing printed circuit board (PCB) and PCB
  • Drilling method of manufacturing printed circuit board (PCB) and PCB

Examples

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Embodiment Construction

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0015] An embodiment of the present invention provides a drilling method for making PCBs, comprising: making a drilling 1 on a PCB manufacturing board; making a drilling 2 intersecting the drilling 1 on the PCB manufacturing board; Deburr the intersection of borehole 1 and borehole 2.

[0016] Because the method removes the burr at the intersection of the first drill hole and the second drill hole, the burr problem in the related art is overcome, and the quality of the PCB is improved.

[0017] image 3 A schematic diagram of making a figure-eight hole according to an embodiment of the present invention is shown, Figure 4 A schematic diagram of making a gourd hole according to an embodiment of the present invention is shown. like image 3 and Figure 4 As shown, drill a hole at the intersection 3 (that is, the deburring hole 4 ...

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PUM

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Abstract

The invention provides a drilling method of manufacturing a printed circuit board (PCB). The drilling method of manufacturing the PCB comprises the steps of manufacturing a first drilling hole on the PCB, manufacturing a second drill hole which intersects the first drilling hole on the PCB, and manufacturing a burr removing puncture hole on an intersecting part of the first drilling hole and the second drilling hole to remove burrs on the intersecting part. The invention further provides a PBC which is manufactured through the above method. The drilling method of manufacturing the PCB and the PCB solve the problem of the burrs in a relevant technology, and thus the quality of the PCB is improved.

Description

technical field [0001] The invention relates to the field of printed circuit boards (PCBs), in particular to a drilling method for making PCBs and PCBs. Background technique [0002] When making a PCB, sometimes it is necessary to make 8-shaped drilling holes (abbreviated as 8-shaped holes) or gourd-shaped drilling holes (abbreviated as gourd holes) on the PCB. [0003] figure 1 A schematic diagram of making a figure-eight hole according to related technologies is shown. First, use a drill to make drill hole 1, and then use a drill with the same diameter to make drill hole 2 at the position where it intersects with drill hole 1 to obtain a figure-eight hole as shown in the figure. [0004] figure 2 A schematic diagram of making a gourd hole according to the related art is shown. First use a drill to make a small-diameter drill hole 1, and then use another larger-diameter grooved needle to make a large-diameter drill hole 2 at the intersection with the drill hole 1 to ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00H05K1/02
Inventor 代文艺闫鼎
Owner PEKING UNIV FOUNDER GRP CO LTD
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