Month: September 2022

 

 

As the global market develops, the use of heavy copper in PCBs has become a growing trend in order to meet the use in different application scenarios. Electronics PCB manufacturers are equally concerned with reliable, high quality, cost effective electronic solutions.

This article describes the characteristics of the use of thick copper processes in printed circuit boards.

What is a thick copper PCB?

Heavy copper PCBs, also known as high current PCBs, contain three ounces or more of copper in the external and internal layers of their circuit boards. Heavy copper PCBs can withstand higher temperatures for longer periods of time, carry currents in excess of hundreds or thousands of amperes and provide stronger connections.

It have been proven to provide the benefits of high heat dissipation, fast, high frequency and high-performance output. Printed circuit boards made with heavy copper consist of a copper plating and copper etching process that eliminates unwanted copper and a copper plating process that optimizes the copper thickness of traces, pads, planes and holes on the board.

What are the advantages of using thick copper PCBs?

1. High current-carrying capacity. Whereas a standard circuit board may only support double-digit amperage, a thick copper PCB can carry hundreds or thousands of amperes.
2. High temperature resistance, good heat dissipation and the ability to use special materials in thick copper pcb layouts without circuit failure
3. Suitable for compact electronic solutions
4. High durability due to the use of thick copper substrates
5. High reliability of electronic performance through the use of heavy copper PCB layouts or polar copper PCBs
6. Smaller footprint and reduced number of layers on the board possible
7. Increased mechanical strength in plated through-hole and connector locations
8. Cost effective production, copper is slightly more expensive as a material but the overall production costs of heavy copper PCBs are reduced. Thick copper PCBs can be used instead of copper cables, making them more cost effective.

What are the applications for thick copper PCBs?

Thick copper PCBs have a wealth of application scenarios, for example in the computer, automotive industry, military, industrial control, mechanical fields, etc.: 1.

1. power control boards
2. control converters
3. Soldering equipment
4. Solar panels

Turn to KINGPCB for your heavy copper pcbs manufacturing

KingPCB provides PCB manufacturing solutions for a variety of industries and is a leading PCB supplier. Every time you work with us, we are committed to providing excellent customer service and the best PCB for your needs.

Choose the heavy copper PCB manufacturer that is right for you, learn more about our PCB manufacturing services and contact us today for a quote.

The use of printed circuit boards has evolved over the years. It is worth noting that PCBs have come to play an integral role in the automotive industry thanks to innovations in circuit board equipment. As people rely on technology, newer innovations are constantly being introduced. Innovations in PCB design for self-driving car electronics have changed the way manufacturers build driverless car.

What is an autonomous car?

Autonomous cars are also called self-driving cars, driverless cars, computer-driven cars, etc. As an automated vehicle, self-driving cars can sense their environment and navigate without the need for human operation. Autonomous cars use technologies such as radar, optical radar, GPS and computer vision to sense their environment.

PCB assembly strategy for self-driving cars

For automotive electronics PCB assembly, it is necessary to choose the right PCB materials and specific designs to meet the requirements set forth in the use standard to ensure that no problems occur in production. Therefore, the following basic strategies need to be followed.

Component placement and orientation

Component placement and orientation play an important role in the reliability of board manufacturing. For example, when using wave soldering, components must be oriented parallel to the wave direction, placed bridge soldering or open circuit.

Power thermal management

Circuit board alignment thickness, number of layers, heat path continuity and board surface are all factors that affect the climate of the running components. When the absorption exceeds 10mW or current exceeds 10mA components must be properly thermal management and power management components.

Component Sequence

Place finer components first, followed by smaller parts. In addition, analog or hybrid components must be placed in a specific PCB area, separate from its digital components.

DRC principle

DRC (Design Rule Checking) is an important assembly part of electronic design automation

PCB assembly in vehicles

Printed circuit boards provide mechanical support and electrical connections for the different components of a vehicle and have a wealth of uses in vehicles. Our requirements for safety, comfort and connectivity are fulfilled by circuit board design for.

1. airbag deployment
2. Automotive audio and video equipment
3. global positioning systems
4. anti-lock braking systems
5. vehicle communication devices
6. LED brake lights
7. remote diagnostic system
8. transmission sensors

Why use them?

With the age of vehicle advancement, the automobile has evolved into a collection of complex systems and software. The popularity of vehicle printed circuit boards is not only attributed to their functionality but also has many other benefits.

Importantly, your PCB manufacturer has the flexibility to make PCBs that fit the vehicle’s electronic control device system. Almost everything you see digitally displayed in a vehicle is likely controlled by the PCBs. In the future development of automotive electronics, we expect cars to become increasingly intelligent and environmentally friendly. Therefore, PCB assembly suppliers are an indispensable part of the automotive industry.

Choose KingPCB As Your Vehicle PCBs Assembly Partner!

KingPCB has more than 10 years of experience in providing industrial PCB solutions. We have the most abundant equipment and professional team to serve your PCB project. Want to get more information about PCB manufacturing and assembly? Start contacting us or by email now!

More and more manufacturers are realizing that there are many benefits to using outsourced PCB assembly services, allowing electronics contractors to provide expertise to make OEM services more efficient.

When it comes to PCB assembly, the following are a few important points to consider when using assembly services.

The Best Practice of Outsourcing PCBs Assembly

1. Reduce investment
2. Increase cost efficiency
3. Save facilities
4. Reduce lead time
5. Increase professionalism
6. Improve focus
7. Get more capacity
8. Improve after-sales service

Reduce investment

As we all know, surface mounters and quality inspection machines take up most of the investment cost. If you want to get more certifications to manufacture high-precision PCBs, it will cost you more effort and time. At this time using outsourcing PCB assembly, you will not have to worry about the above issues.

Improve cost efficiency

Factors that affect cost effectiveness are.

-Part life cycle

-High price fluctuations

-Design factors

Facility savings

Your electronics supplier can better store your parts. Renting a warehouse would cost a significant amount and be subject to property taxes, leaving this cost to be invested elsewhere, such as R&D, marketing, etc.

Shorter lead times

PCB manufacturers will have long-term relationships with component manufacturers, where the complete supply chain helps shorten your product delivery time. Assembling circuit boards requires specialized teams and facilities, which can put you under tremendous pressure, while a manufacturer that focuses solely on PCB manufacturing or assembly can deliver faster than you can.

Increased professionalism

A professional PCB manufacturer can help you solve problems effectively, and that’s where their expertise comes in. Thinking ahead about issues you may not have considered, such as design flaws, material conflicts, etc.

Increased focus

Leaving the PCB assembly or manufacturing part to your trusted electronics manufacturer can effectively reduce your stress. You can focus more on the engineering or marketing part, which will help improve your ability to develop your product and help it enter new markets faster.

Get more capacity

Outsourcing PCB assembly allows for a more professional team and more work space. Trusted PCB assembly services can provide more help in your PCB mass manufacturing. Remember: if you want to assemble large orders yourself, you will need expensive installation and inspection equipment to meet demand, and more effort in delivery capability.

Improve after-sales service

Choosing the right supplier can help you benefit tremendously from all aspects of the PCB design layout to the distribution process. A dedicated engineering team can gather important data in failure analysis, which facilitates faster time-to-market. Creating an all-in-one PCB manufacturing experience, using contract PCB manufacturing is a long-term effective solution.

Are you looking for a high-quality contract electronics manufacturer you can trust？

KingPCB has a dedicated engineering team with professional and complete facilities to assist you with PCB assembly and manufacturing services, contact us today to learn more about our assembly and manufacturing!

BGA (Ball Grid Array) is a surface mount package for integrated circuits for mounting devices. Each pin has a solder ball. All connections are distributed in a uniform surface grid or matrix on the component. Common grids available today are 1.27 mm – 1.00 mm – 0.80 mm – 0.50 mm

The standard for packaging integrated circuits on boards up to now was the PGA, a pin-grid array, but this has now been replaced by the BGA. In short, PGAs use a square arrangement of pins to mount components, whereas BGAs use metal balls made of solder attached to the bottom of the cell instead of pins.

What are the advantages of BGAs?

The BGA package is the most demanding packaging process for PCB manufacturing in terms of soldering and it has the following advantages.

Good thermal dissipation

The temperature of the chip is much closer to the ambient temperature when the BGA is in operation. In fact, when the BGA unit provides a thermal path to carry heat away, the heat generated will dissipate into the board

More storage spaces

The BGA package is only one third the size compared to other types of packages, and the cover area is only about 1.2 times the area of the chip. The amount of memory and the speed of operation of a memory product in a BGA package can be increased by more than 2.1 times compared to other types of packages.

Good operational stability

As the pins of the BGA package are directly extended from the center of the chip like all around, it effectively shortens the transmission path of various signals, greatly reducing the attenuation of signals, improving the response speed and anti-interference ability, and increasing the stability of the product.

High integration

BGA pins are numerous and short, with large pin spacing and good pin coplanarity.

Reliability

The vulnerability of the pins is always a problem when using PGAs, and extra care is needed when using them.

BGA is not perfect, it also suffers from the following problems

Difficulties in post-solder inspection

PCB manufacturers must use x-ray fluoroscopy or x-ray layered inspection to ensure the reliability of the board’s soldered connections, with high equipment costs.

Repairs

The repairs of BGA components requires protecting the solder beads and cleaning up the solder paste. If individual solder joints are damaged, the entire component must be removed and only replaced with a new BGA.

Environments

BGA components are sensitive to changes in temperature and humidity, and the ideal storage temperature is 20 to 25°C and humidity less than 10%. The ideal storage temperature is 20 to 25°C and humidity less than 10%.

High sensitivity

BGA packaged components are sensitive components and if they need to be imported BGA components require longer logistic times and higher costs.

In fact, in many applications, BGA may not be the best choice. In this case, there are many other BGA types that can be used in different situations.

– Molded Array Process Ball Grid Arrays or MAPBGA, which are ideal for low cost to low to medium performance devices.

– Thermally Enhanced Plastic Ball Grid Array or TEPBGA, this package offers high levels of heat dissipation.

– With Ball Grid Array or TBGA, this is ideal for mid to high end solutions.

– Package on Package or PoP, this allows the memory package to be stacked on top of the base device and is therefore very useful for applications where space is limited.

What makes BGAs important in PCB assembly?

The importance of a correct PCB layout cannot be overstated. Although it connects various electronic components on a substrate, it is this method of attaching components to the surface of the board that largely affects the stability and efficiency of the board.

The main reason for the popularity of the BGA package is due to its obvious advantages, with unique benefits in terms of package density, electrical performance and cost allowing it to replace traditional packaging methods. Over time, more and more improvements will be made to the BGA package and the price/performance ratio will be further improved. With flexibility and excellent performance, the BGA package has a promising future.

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