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

PCB (Printed Circuit Board) manufacturing method

A technology for a PCB board and a manufacturing method, which is applied in the field of PCB board manufacturing using dry green oil plug holes, can solve the problems of redness at the edge of the hole and the plug hole is not full, achieves smooth surface, full plug hole, and solves the problem of poor plug hole Effect

Inactive Publication Date: 2012-04-25
金悦通电子(翁源)有限公司
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned problem that the plug hole is not full and the edge of the hole is red, the object of the present invention is to provide a method for making a PCB board using dry green oil plug hole

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
  • PCB (Printed Circuit Board) manufacturing method
  • PCB (Printed Circuit Board) manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The invention discloses a method for manufacturing a PCB board, which includes the steps of copper immersion and board electroplating, and after the board electroplating step, the following steps are further included:

[0033] Step1: Grind the board, smooth and clean the PCB surface with a brush;

[0034] Step2: Plug the dry green oil, and use the printing machine to stuff the dry green oil into the hole of the PCB board. The area ratio of the dry green oil covered area to the hole area is required to be greater than 80%;

[0035] Step3: Post-bake, bake the PCB board at 150±5°C for 40-60 minutes; wherein, the baking temperature is preferably 150°C, and the baking time is preferably 50 minutes;

[0036] Step4: Grinding, use a non-woven brush wheel to grind the dry green oil protruding from the PCB surface, the grinding speed is 0.8-1.0 meters per minute, and the number of grinding is 2-3 times;

[0037] Step5: Outer circuit production, using negative film technology to make outer ...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of PCB (Printed Circuit Board) processing and particularly discloses a PCB manufacturing method. The PCB manufacturing method mainly comprises the manufacturing steps of copper deposition, board electroplating, board polishing, dry green oil stuffing, roasting, grinding, manufacturing of an outer layer line and manufacturing of a green oil solder resist protective layer. In the PCB manufacturing method, by improving a plug hole process and plug hole oil, a plug hole of a PCB is fuller, the surface of the PCB is flat after the PCB is printed and the redness problem at the edge of the hole is also well improved, so that a series of problems caused by the poor plug hole are solved.

Description

Technical field [0001] The invention belongs to the technical field of PCB processing, and specifically relates to a method for manufacturing a PCB board using dry green oil plug holes. Background technique [0002] PCB (Printed Circuit Board), the Chinese name is printed circuit board, printed circuit board for short, is one of the important parts of the electronics industry. Almost every kind of electronic equipment, from electronic watches, calculators, to computers, communication electronic equipment, military weapon systems, as long as there are electronic components such as integrated circuits, printed boards are used for electrical interconnection between them. . The design and manufacturing quality of printed boards directly affects the quality and cost of the entire product, and even leads to the success or failure of commercial competition. [0003] In order to prevent the non-part holes from being oxidized and corroded by acid and alkali in the natural environment for ...

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): H05K3/40H05K3/22
Inventor 罗建军
Owner 金悦通电子(翁源)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