Micro-drilling method for flexible circuit board

A flexible circuit board and micro-drilling technology, used in printed circuits, boring/drilling, printed circuit manufacturing, etc., can solve the problem that the drilling parameters cannot reach the parameter accuracy range, the quality of the circuit board is difficult to guarantee, and the circuit is reduced. Board reliability and other issues, to achieve the effect of improving effectiveness, improving accuracy and reliability

Inactive Publication Date: 2018-04-06
TAIZHOU BOTAI ELECTRONICS
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Problems solved by technology

[0002] As we all know, the parameters of the holes drilled on the circuit board are required to be very accurate in terms of the depth, diameter and relative position of the holes. The thermal expansion and deformation of the board material causes the drilling parameters to fail to reach the required parameter accuracy range, and the drilling accuracy is low, which in turn reduces the reliability of the circuit board and makes it difficult to guarantee the quality of the circuit board

Method used

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  • Micro-drilling method for flexible circuit board

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Effect test

Embodiment

[0022] Example: A micro-drilling method for a flexible circuit board

[0023] Such as figure 1 , prepare the following materials and tools in advance, the material includes a flexible circuit board, the tool uses a micro-drill, the micro-drill includes a drill head, a drill body and a drill tail, the drill head has a first spiral groove, so The drill body part has a second helical groove, the helical direction of the first helical groove and the second helical groove are the same, and the helical angle of the first helical groove is smaller than the helical angle of the second helical groove.

[0024] Follow the steps below.

[0025] In the first step, the flexible circuit board is taken out, and the surface of the flexible circuit board is divided into a processing area and a test area.

[0026] In the second step, the processing parameters of holes to be drilled are set in the test area, and the processing parameters include the number of drilled holes and the diameter of ...

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Abstract

The invention relates to a micro-drilling method for a flexible circuit board, and the method comprises the steps: taking out the flexible circuit board, and dividing the surface of the flexible circuit board into a processing region and a test region; setting the processing parameters of a to-be-drilled hole in the test region, wherein the processing parameters comprise the number of drill holesand the diameters of the drill holes; selecting miniature drill bits with different diameters according to the diameters of the drill holes in the processing parameters, carrying out the processing ofthe drill holes in the test region, enabling the number of actual drill holes to be matched with the number of the drill holes in the processing parameter, and enabling the diameters of the actual drill holes to be matched with the diameters of the drill holes in the processing parameter; detecting the deviation between the actual parameters of the processed drill holes and the processing parameters after the drill holes are cooled to room temperature; carrying out the adjustment of the actual parameters according to the detected deviation, and then setting the final actual parameters for theprocessing of the drill holes in the processing regions; carrying out the drill hole processing in the processing region according to the final actual parameters, and completing the drilling technology.

Description

technical field [0001] The invention belongs to the field of circuit board processing, and in particular relates to a micro-drilling method for a flexible circuit board. Background technique [0002] As we all know, the parameters of the holes drilled on the circuit board are required to be very accurate in terms of the depth, diameter and relative position of the holes. The thermal expansion and deformation of the board material causes the drilling parameters to fail to reach the required parameter accuracy range, and the drilling accuracy is low, which in turn reduces the reliability of the circuit board and makes it difficult to guarantee the quality of the circuit board. [0003] In view of this, a micro-drilling method for flexible circuit boards is proposed. Contents of the invention [0004] In order to solve the defects of the prior art, the present invention provides a micro-drilling method for a flexible circuit board, the following materials and tools are prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00B23B41/14
CPCH05K3/0047B23B41/14H05K2203/0207H05K2203/0214
Inventor 刘兆朱华珍张友山毛建国施庆岗
Owner TAIZHOU BOTAI ELECTRONICS
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