Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving marking quality of QR code on surface of gold-plated part

A two-dimensional code, quality technology, applied in the direction of metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of consistency, easy breakdown coating, insufficient color contrast of laser processing two-dimensional code, etc.

Inactive Publication Date: 2021-09-10
青岛星成激光科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the problems in processing two-dimensional codes are as follows: processing dot-matrix two-dimensional code points is easy to break through the coating, and even the substrate layer, which will affect the electrical performance inside the packaged semiconductor; when processing larger two-dimensional codes (3*3mm), although Readable, but the consistency is general, especially when processing small two-dimensional codes (below 1*1mm), this consistency problem is more obvious, and there are also problems with readability and rating; laser processing two-dimensional codes after breakdown coating Code color contrast is not enough
The above results in the final two-dimensional code processing effect can not reach B level and above

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving marking quality of QR code on surface of gold-plated part
  • Method for improving marking quality of QR code on surface of gold-plated part
  • Method for improving marking quality of QR code on surface of gold-plated part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) NiP layer thickness 2.14um, Au layer thickness 0.053um;

[0044] (2) The laser focus spot size on the surface of gold-plated parts is 45.07um;

[0045] (3) The laser spot size before incident is 2.41mm;

[0046] (4) Push the pretreated gold-plated parts to the laser processing station, and press the gold-plated parts; when the laser receives the light signal, the laser processes the gold-plated parts according to the set laser parameters; after the processing is completed, The gold-plated parts are transported to the CCD reading and grading station, and finally enter the storage box.

[0047] According to the above parameters to complete the embodiment, the laser processing effect diagram is figure 1 , CCD camera code reading standard is two-dimensional code ISO29158, AIM DPM mode, the results show that: the two-dimensional code grade reaches B level and above.

Embodiment 2

[0049] (1) NiP layer thickness 1.27um, Au layer thickness 0.028um;

[0050] (2) The laser focus spot size on the surface of gold-plated parts is 37.52um;

[0051] (3) The laser spot size before incident is 3.56mm;

[0052] (4) Push the pretreated gold-plated parts to the laser processing station, and press the gold-plated parts; when the laser receives the light signal, the laser processes the gold-plated parts according to the set laser parameters; after the processing is completed, The gold-plated parts are transported to the CCD reading and grading station, and finally enter the storage box.

[0053] According to the above parameters to complete the embodiment, the laser processing effect diagram is figure 2 , CCD camera code reading standard is two-dimensional code ISO29158, AIM DPM mode, the results show that: the two-dimensional code grade reaches B level and above.

Embodiment 3

[0055] (1) NiP layer thickness 2.92um, Au layer thickness 0.072um;

[0056] (2) The laser focus spot size on the surface of gold-plated parts is 51.02um;

[0057] (3) The laser spot size before incident is 2.13mm;

[0058] (4) Push the pretreated gold-plated parts to the laser processing station, and press the gold-plated parts; when the laser receives the light signal, the laser processes the gold-plated parts according to the set laser parameters; after the processing is completed, The gold-plated parts are transported to the CCD reading and grading station, and finally enter the storage box.

[0059] According to the above parameters to complete the embodiment, the laser processing effect diagram is image 3 , CCD camera code reading standard is two-dimensional code ISO29158, AIM DPM mode, the results show that: the two-dimensional code grade reaches B level and above.

[0060] The core of this specific embodiment lies in a method for improving the quality of two-dimensi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Sizeaaaaaaaaaa
Sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for improving the marking quality of a QR code on the surface of a gold-plated part. The method comprises the steps that firstly, a pretreated gold-plated part is pushed to a laser machining station, and the gold-plated part is pressed; then, a laser device processes the gold-plated part according to set laser parameters; and after processing is completed, the gold-plated part is conveyed to a CCD reading rating station and finally enters a storage box. The laser power density is controlled by controlling the spot size of the laser before incidence according to the absorption characteristic of the material, so that the shielding cover is not punctured; the size of a laser processing point is controlled according to an algorithm that rating equipment can distinguish pixel points; and the laser light source wavelength is selected according to the laser absorption characteristic effect chromatic aberration of a material gold film. On the premise that the electrical performance of a semiconductor is not affected after laser processing, the shielding cover is not punctured, and the material background color difference is obvious; and meanwhile, the size of the laser processing point is controlled, the QR code grade reaches the B grade or above, and therefore the marking quality of the QR code on the surface of the gold-plated part is improved.

Description

technical field [0001] The invention relates to the technical field of laser processing and is mainly used in the semiconductor industry, in particular to a method for improving the marking quality of two-dimensional codes on the surface of gold-plated parts. Background technique [0002] At present, the semiconductor industry has higher and higher requirements on the technical level of two-dimensional code marking. Various upgraded laser processing equipment have appeared on the market to improve the marking quality of products, but most of the equipment products have not fundamentally solved the problem. At present, the problems in processing two-dimensional codes are as follows: processing dot-matrix two-dimensional code points is easy to break through the coating, and even the substrate layer, which will affect the electrical performance of the packaged semiconductor; when processing larger two-dimensional codes (3*3mm), although Readable, but the consistency is average,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K26/362B23K26/60B23K26/073B23K26/70
CPCB23K26/362B23K26/60B23K26/073B23K26/702
Inventor 张信
Owner 青岛星成激光科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com