• +86-755-23012705
  • Building 3, Jinfeng Industrial Park, Fuyong Street, Baoan District, Shenzhen ,China
  • [email protected]
logo
  • Home
  • About Us
    • Flexible PCB Expertise
    • Our Certifications
    • Our Facility
    • Quality Assurance
  • PCB Fabrication
    • Flexible PCB
    • Rigid Flex PCB
    • Rigid PCB
    • ELIC HDI PCB
    • RF PCB
    • Medical PCB
    • Automotive PCB
    • IoT & IIoT PCB
    • Industrial Control PCB
    • Telecommunication PCB
    • Consumer Electronics PCB
  • PCB Assembly
    • Turn Key PCB Assembly
    • Consigned PCB Assembly
    • Components Sourcing
  • Capabilities
    • PCB Fab Capability
    • ATE PCB Fabrication
    • PCB Technology Roadmap
    • PCB Assembly Services
    • PCB Design Support
  • Contact
  • Resources
    • PCB Blog
    • PCB Glossary
  • Home
  • About Us
    • Flexible PCB Expertise
    • Our Certifications
    • Our Facility
    • Quality Assurance
  • PCB Fabrication
    • Flexible PCB
    • Rigid Flex PCB
    • Rigid PCB
    • ELIC HDI PCB
    • RF PCB
    • Medical PCB
    • Automotive PCB
    • IoT & IIoT PCB
    • Industrial Control PCB
    • Telecommunication PCB
    • Consumer Electronics PCB
  • PCB Assembly
    • Turn Key PCB Assembly
    • Consigned PCB Assembly
    • Components Sourcing
  • Capabilities
    • PCB Fab Capability
    • ATE PCB Fabrication
    • PCB Technology Roadmap
    • PCB Assembly Services
    • PCB Design Support
  • Contact
  • Resources
    • PCB Blog
    • PCB Glossary
Get Quote

Circuit Board Manufacturers: Common Methods of PCB Drilling Technology

With the improvement of product performance, PCB are constantly updated and developed. The circuits are becoming denser and more and more components need to be placed. However, the size of the PCB will not become larger, but smaller and smaller. At this time, if you want to drill holes in the plate, you need considerable skills.

There are many PCB drilling techniques. The traditional method is to make inner blind holes. When laminating multilayer boards successively, first use two double-sided boards with through holes as the outer layer and press them with the non-porous inner board. Then there are blind holes filled with glue, and the blind holes on the outer board surface are formed by mechanical drilling. However, when making machine-drilled blind holes, it is not easy to set the drilling depth of the drill bit, and the bottom of the tapered hole affects the effect of copper plating. In addition, the process of making inner blind holes is too long and wastes too much cost. Traditional methods are more and more unsuitable.

 

Nowadays commonly used PCB micro-hole technology, in addition to the carbon dioxide drilling and laser drilling we introduced before, there are mechanical drilling, photosensitive drilling, laser drilling, plasma etching and chemical etching.

 

Mechanical drilling is made by high-speed machining. The most important one is the drill bit. The drill bit is generally made of tungsten-cobalt alloy. The alloy is made of tungsten carbide powder as the matrix and cobalt as the binder. With high hardness and high wear resistance, you can smoothly drill the holes.

Laser hole is made by carbon dioxide and ultraviolet laser cutting. The gas or light forms a beam of light, which has powerful heat energy and can burn through the copper foil to create the required hole. The principle is the same as cutting, mainly to control the beam.

 

PDP is also plasma. The particles that make up the plasma have a large distance between them and are in constant and random collisions. Its thermal motion is similar to that of ordinary gas. Plasma etch holes are mainly used for PCBs with resin copper layers. Oxygen-containing gas is used as plasma. After contact with copper, an oxidation reaction will occur, and the resin material will be removed to form holes.

 

As mentioned before, the remaining objects on the PCB cannot be cleaned by normal methods. Chemical cleaning methods can be used to make the chemical agents react with the residues to be removed. It is the same as drilling. Use chemical agents and drop them on the place where drilling is needed to erode the copper foil, resin, etc., and finally form holes.

Share

Related posts

dispensing in PCB
2025-02-07

Multilayer PCB Assembly and HDI PCB Manufacturing for High-Tech Solutions


Read more
smt product line
2025-02-06

Streamline Your PCB Production with XPCB’s Turnkey PCBA Services


Read more
2025-02-05

Comprehensive Turnkey PCBA Services: From BOM to SMT Assembly


Read more
amazon
amphenol-logo
halliburton
intel logo
samtec logo
sanmina logo

Company Info

XPCB Limited is a premium PCB & PCBA manufacturer based in China.

We specialize in multilayer flexible circuits, rigid-flex PCB, HDI PCB, and Rogers PCB.

Quick-turn PCB prototyping is our specialty.  Demanding project is our advantage.

Head Office

XPCB Limited
Address :
Building 3, JinFeng Industry Area,  Fuyong Town, Baoan District, Shenzhen, Guangdong, 518103, China.

Tel : +86-136-3163-3671
Fax : +86-755-2301 2705
Email : [email protected]

Quick Links

  • Flexible PCB
  • Rigid Flex PCB
  • ELIC HDI PCB
  • RF PCB
  • PCB Capability
  • PCBA Capabiility
  • About Us

PCB Blog

Multilayer PCB Assembly and HDI PCB Manufacturing for High-Tech Solutions

Read More »

Streamline Your PCB Production with XPCB’s Turnkey PCBA Services

Read More »

Comprehensive Turnkey PCBA Services: From BOM to SMT Assembly

Read More »

© 2024 - XPCB Limited All Right Reserve