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JLCPCB PCB Assembly: High-Quality and Affordable Circuit Board Manufacturing

JLCPCB PCB Assembly: High-Quality and Affordable Circuit Board Manufacturing

May 03, 2024

If you’re looking for a reliable and cost-effective way to get your printed circuit boards (PCBs) assembled, then JLCPCB is a great option to consider. JLCPCB is a leading PCB manufacturer and assembly service provider that offers a wide range of services to customers all over the world. With a commitment to quality and customer satisfaction, JLCPCB has quickly become one of the most popular PCB assembly services available today.

Electronic components arranged on a printed circuit board (PCB) with soldering equipment nearby

One of the main benefits of using JLCPCB for your PCB assembly needs is the company’s commitment to quality. JLCPCB uses only the highest quality components and materials in their PCB assemblies, ensuring that your finished product will be reliable and long-lasting. Additionally, JLCPCB employs a team of skilled technicians and engineers who are dedicated to ensuring that every PCB assembly meets the highest standards of quality and performance.

Another advantage of using JLCPCB is the company’s fast turnaround times. JLCPCB offers a range of turnaround options to fit your specific needs, including 24-hour and 48-hour turnarounds for urgent projects. This means that you can get your PCBs assembled quickly and efficiently, without sacrificing quality or reliability. So whether you’re working on a small project or a large-scale production run, JLCPCB is a great choice for your PCB assembly needs.

Overview of JLCPCB Assembly Services

A table with various electronic components laid out, a soldering iron, and a robotic arm placing components onto a printed circuit board

If you are looking for a reliable and cost-effective PCB assembly service, JLCPCB is definitely worth considering. With over 15 years of experience in the industry, JLCPCB has become one of the largest PCB manufacturing companies in the world, with a production capacity of over 8,000,000 square meters per year.

JLCPCB offers a wide range of assembly services, including SMT assembly, through-hole assembly, mixed assembly, and panel assembly. They also provide turnkey solutions, which means they can handle the entire process from PCB fabrication to assembly and testing.

One of the standout features of JLCPCB’s assembly services is their online quote and ordering system. This system allows you to upload your PCB design files, select your assembly options, and receive an instant quote. You can also track the progress of your order online, from fabrication to delivery.

JLCPCB’s assembly services are also backed by a team of experienced engineers and technicians, who work diligently to ensure that your PCBs are assembled to the highest quality standards. They use advanced equipment and software to ensure precise placement and soldering of components, and perform thorough testing to ensure that your PCBs are functioning properly.

Overall, JLCPCB’s assembly services offer a reliable and cost-effective solution for all your PCB assembly needs. Whether you are a hobbyist, a startup, or an established business, JLCPCB can provide the quality and service you need to bring your projects to life.

PCB Assembly Process at JLCPCB

Soldering iron melts solder onto PCB. Components placed by pick-and-place machine. Conveyor moves boards through assembly line

If you are looking for a reliable and efficient PCB assembly service, JLCPCB is a great option. They offer a high-quality assembly for a fair price, making it a top choice for many engineers.

Ordering and File Submission

The first step in the PCB assembly process at JLCPCB is to submit your files. You can upload your Gerber files and BOM (Bill of Materials) directly to their website. They accept a variety of file formats, including Altium Designer, Eagle, KiCAD, and more.

Once you have submitted your files, you will receive an instant quote for your PCB assembly. The quote will include the assembly fee and the cost of the components. You can then review the quote and make any necessary changes before placing your order.

SMT Assembly

After you have placed your order, JLCPCB will begin the SMT (Surface Mount Technology) assembly process. They use state-of-the-art equipment to place the components on the PCB with precision and accuracy.

JLCPCB offers a variety of assembly options, including single-sided, double-sided, and multilayer PCBs. They also offer different soldering options, such as lead-free and leaded solder.

Quality Control and Testing

Once the assembly is complete, JLCPCB performs rigorous quality control testing to ensure that the PCB meets their high standards. They use advanced testing equipment to check for any defects, such as shorts, open circuits, or incorrect component placement.

JLCPCB also offers additional testing services, such as functional testing and X-ray inspection, for an additional fee. These services can help to ensure that your PCB is functioning properly before it is shipped to you.

Overall, JLCPCB offers a reliable and efficient PCB assembly service. With their advanced equipment and commitment to quality, you can be confident that your PCB will be assembled to the highest standards.

Components Sourcing Options

When it comes to sourcing components for your PCB assembly, JLCPCB offers two options: self-service sourcing and JLCPCB sourcing service. Depending on your needs, you can choose the option that works best for you.

Self-Service Sourcing

With self-service sourcing, you have the freedom to source components on your own. JLCPCB has a vast library of components available on their website that you can browse and select from. They also offer a pre-order service to ensure that the required components are ready when you need them. This option is ideal for those who have experience in sourcing components and want to save on costs.

JLCPCB Sourcing Service

If you prefer to have JLCPCB source components for you, they offer a sourcing service. With this service, JLCPCB will source all the required components for your PCB assembly. They have a large selection of components in stock, and if a part is not available, they will help you source it from their network of suppliers. This option is ideal for those who want to save time and have JLCPCB handle the sourcing process for them.

Both options have their benefits, and it ultimately comes down to your personal preference and experience in sourcing components. With JLCPCB’s vast library of components and their sourcing service, you can rest assured that your PCB assembly will have the necessary components for a successful build.

Technical Capabilities and Limitations

JLCPCB offers a wide range of technical capabilities and limitations to meet your PCB assembly needs. Here are some important factors to consider:

Supported PCB Specifications

JLCPCB supports a variety of PCB specifications, including:

  • Rigid PCBs
  • Flex PCBs
  • Rigid-flex PCBs

You can also choose from a range of PCB colors, including green, purple, red, yellow, blue, white, and black. Additionally, JLCPCB offers a range of surface finishes, such as HASL, ENIG, and OSP.

Component Placement Accuracy

JLCPCB uses advanced equipment to ensure high component placement accuracy. The company’s pick-and-place machines can place components as small as 0201 packages and BGAs with a pitch of 0.4mm. JLCPCB also uses X-ray inspection to verify the placement of BGA components.

It’s important to note that while JLCPCB strives to achieve high accuracy, there are some limitations to component placement. For example, components with a pitch of less than 0.3mm may not be able to be placed accurately due to the limitations of the pick-and-place machine. Additionally, components with a height greater than 25mm may not be able to be placed due to the limitations of the reflow oven.

Overall, JLCPCB offers a range of technical capabilities and limitations to meet your PCB assembly needs. By understanding these capabilities and limitations, you can make informed decisions about your PCB assembly project.

Pricing and Turnaround Time

JLCPCB offers competitive pricing for their PCB assembly services. The cost of PCB assembly is calculated based on several factors such as the number of components, the size of the board, and the quantity of boards needed. The setup fee for PCB assembly is $8.00, and the stencil fee is $1.50. The cost of the components is not included in the assembly fee, but JLCPCB offers over 500,000 components in stock that can be used for assembly.

The turnaround time for PCB assembly is quick, with 90% of orders being finished within 24 hours, and 48 hours at most. The assembly turn-time begins immediately after the PCB turn-time. JLCPCB prioritizes both efficiency and quality, ensuring that over 98% of orders are shipped on time.

JLCPCB also offers a 24-hour production time for most of their orders. With over 10 years of experience in PCB manufacturing, they have served more than 4,100,000 customers worldwide, processing over 20,000 PCB orders per day.

In addition to their fast turnaround time, JLCPCB offers an easy-to-use online calculator to help you estimate the cost of your PCB assembly project. The calculator takes into account the size of the board, the number of layers, and the quantity of boards needed. You can also use their online gerber viewer to check your design before submitting it for assembly.

Overall, JLCPCB offers competitive pricing and fast turnaround times for their PCB assembly services. With their experience and expertise in the field, you can trust them to deliver high-quality results for your project.


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