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Circuit board having bar code and manufacturing method thereof

A barcode and circuit board technology, applied in printed circuit parts and chemical/electrolytic methods to remove conductive materials, etc., can solve the problems of complex process, uneconomical, poor recognition accuracy, etc., to save material costs, identify Accurate results

Inactive Publication Date: 2009-05-06
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, when applying commodity barcodes to circuit boards, if the pre-printed commodity barcodes are manually attached to the circuit boards after the circuit boards are manufactured, this is a time-efficient and It is not economical for the current industry with expensive labor; however, if the circuit board is injection-molded, and the barcode is formed on the printed circuit board by injection casting or die-casting, it is not economical due to the complexity of the process. poor precision

Method used

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  • Circuit board having bar code and manufacturing method thereof
  • Circuit board having bar code and manufacturing method thereof
  • Circuit board having bar code and manufacturing method thereof

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Embodiment Construction

[0032] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0033] see figure 1 , is a schematic plan view showing an embodiment of a circuit board with a barcode in the present invention, and at the same time refer to Figure 2A to Figure 2F , is a schematic cross-sectional view showing an embodiment of the manufacturing method of the circuit board.

[0034] like figure 1 As shown, the circuit board 1 defines a barcode area 20 as shown by a dotted line, the barcode area 20 is provided on the surface of the insulating layer of the circuit board 1 , and the barcode area 20 can be used to form a metal barcode 21 .

[0035] When it is desired to manufacture the circuit board with the barcode in this embodiment, first, a substrate body is provided, and copper foil (copper) is covered on the sur...

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PUM

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Abstract

The present invention discloses a circuit board with bar code and a manufacturing method thereof. The manufacturing method comprises the following procedures: providing a substrate body which comprises an insulating layer and a copper foil on the surface of the insulating layer, forming a dry film on the copper coil, placing a negative plate provided with circuit pattern and bar code pattern on the dry film for exposure, hardening the dry film part provided with the circuit pattern and bar code pattern through exposure, removing the dry film part which does not harden through photoreception by developing, forming a corrosion resistant protecting layer with the dry film part provided with the circuit pattern and the bar code pattern, eliminating the part which is not protected by the dry film through etching to simultaneously form circuit and bar code in the copper foil thereby saving the cost for additionally manufacturing the commodity bar code and the operation time for manually pasting the commodity bar code.

Description

technical field [0001] The invention relates to a circuit board and its manufacturing method, in particular to a circuit board with a barcode and its manufacturing method. Background technique [0002] Commodity barcode refers to a logo composed of a group of regularly arranged black and white intervals (bars, spaces) of different widths (that is, unit codes) and their corresponding characters. It is used to represent symbols for certain commodity information. Use barcode reading equipment to scan and read to convert into computer-compatible binary and decimal information; barcode technology is also born with the development and application of computers and information technology. It is a combination of coding, printing, identification, data collection and processing. new technology. At the same time, since the barcode is read through the color contrast between the bars and spaces of the barcode, a color that meets the requirements of the contrast ratio (PCS value) is requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K3/06
Inventor 杨淑敏胡锋
Owner INVENTEC CORP
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