Detection method for detecting whether flaws exist in drilling holes of FPC (Flexible Printed Circuit) semi-finished product

A detection method and technology for semi-finished products, applied in the direction of optical testing flaws/defects, etc., can solve problems such as low efficiency and difficulty in finding abnormalities

Active Publication Date: 2012-11-28
厦门爱谱生电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is very difficult to detect the drill holes on the imposition of these FPC semi-finished

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A detection method for detecting whether there is a defect in a drilled hole of an FPC semi-finished product, comprising:

[0021] A. Production of the inspection base plate: When the FPC semi-finished product is to be drilled, a semi-transparent plate with a color difference from the FPC semi-finished product is stacked, and the holes are drilled together. The semi-transparent plate is used as the inspection base plate. Preferably, when the drilling position of the FPC semi-finished product is adjusted and the first drilling is performed (the first drilling is equivalent to 0 error, the effect is better; of course, the inspection base plate can also be made during the subsequent drilling operations), and a A semi-transparent board is stacked on the FPC semi-finished product in a good position, and the drilling operation is carried out together. When the FPC semi-finished product is drilled, the semi-transparent board is also drilled with one-to-one corresponding holes....

Embodiment 2

[0024] A detection method for detecting whether there is a defect in a drilled hole of an FPC semi-finished product, including: A, the manufacture of the inspection base plate and B, the inspection method. Wherein, A, the mode of making of inspection bottom plate is the same as embodiment 1. For B, a slight improvement is made to the counterpoint of the way of checking. The detection platform of embodiment 1 is only a flat platform surface with a bottom light on the bottom surface. In Embodiment 2, alignment pins are provided on the platform surface of the detection platform. In this way, as long as the alignment holes on the edge of the FPC semi-finished product to be inspected and the inspection base plate are inserted into the pins, rapid alignment can be performed; this can further improve the inspection efficiency.

[0025] The present invention is generally used for detection of FPC semi-finished imposition (large number of drilling holes). Of course, it can also direc...

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PUM

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Abstract

The invention relates to a manufacturing process of an FPC (Flexible Printed Circuit), in particular to a detection method for detecting whether flaws exist in drilling holes of an FPC semi-finished product. The detection method for detecting whether flaws exist in the drilling holes of the FPC semi-finished product comprises the following steps of: A, manufacturing of a checking base plate, to be specific, stacking a light semitransparent plate of which the color is different from that of the FPC semi-finished product when the FPC semi-finished product is subjected to drilling operation soon, enabling the light semitransparent plate and the FPC semi-finished product to commonly drill a hole and taking the light semitransparent plate as the checking base plate; and B, a checking mode, to be specific, firstly, placing the FPC semi-finished product to be detected on a detection platform, then stacking the checking base plate on the detected FPC semi-finished product for aligning and turning on a base lamp of the detection platform; secondly, observing the checking base plate; if light emergent colors of all holes in the checking base plate are uniform, indicating that no flaws exist in the drilling holes of the FPC semi-finished product; and if light emergent colors of a plurality of holes or hole edges or non-drilling positions of the checking base plate are different, indicating that the flaws exist in the drilling holes of the FPC semi-finished product. The detection method disclosed by the invention is used for detecting whether the flaws exist in the drilling holes of the FPC semi-finished product or not.

Description

technical field [0001] The invention relates to the manufacturing process of FPC (flexible circuit board), especially the step of detecting the drilling of FPC products. Background technique [0002] In the manufacturing process of FPC, in the process of forming FPC finished products, various drilling operations will be performed on FPC semi-finished products such as FPC substrates, copper clad laminates, FPC auxiliary materials (glue, PI, reinforcement sheets, etc.), such as drilling through holes , welding holes, etc. In addition, due to the consideration of production efficiency in the production of FPC, the common practice in the industry is to combine multiple FPC semi-finished units (commonly known as pcs in the industry) into one panel for processing (including drilling operations). [0003] Due to the small area of ​​each FPC semi-finished product unit, usually a panel is composed of dozens of pcs, and dozens or even hundreds of holes need to be drilled in a unit....

Claims

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Application Information

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IPC IPC(8): G01N21/88
Inventor 林泽川林建华
Owner 厦门爱谱生电子科技有限公司
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