PCBONLINE

Name: PCBONLINE
Address: Ansheng Road, No. 4 Building Shajing, Baoan District, Shenzhen, 518100, CN
Telephone: +8675527398155
Price range: £

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PCBONLINE is an EMS PCB supplier for medical, automotive, industrial, etc. Visit us at pcbonline.com.

Do you wanna buy PCBs or PCB assemblies from PCBONLINE? $100 coupons are available for online purchases. Kindly visit our quote system: https://sys.pcbonline.com/instant-quote/

19/03/2026

We are proud to share a flexible transparent project: 𝐝𝐨𝐮𝐛𝐥𝐞-𝐬𝐢𝐝𝐞𝐝, 𝐟𝐮𝐥𝐥𝐲 𝐚𝐬𝐬𝐞𝐦𝐛𝐥𝐞𝐝 𝐓𝐫𝐚𝐧𝐬𝐩𝐚𝐫𝐞𝐧𝐭 𝐅𝐏𝐂𝐬 𝐰𝐢𝐭𝐡 𝐅𝐑4 𝐬𝐭𝐢𝐟𝐟𝐞𝐧𝐞𝐫𝐬 by PCBONLINE.

Our customer is satisfied with the results and generously allowed us to showcase his transparent FPCs, which are mounted with a 𝐦𝐢𝐜𝐫𝐨 𝐜𝐨𝐧𝐧𝐞𝐜𝐭𝐨𝐫, 𝐦𝐢𝐜𝐫𝐨-𝐜𝐡𝐢𝐩𝐬, 𝐚𝐧𝐝 01005/0201 𝐩𝐚𝐬𝐬𝐢𝐯𝐞𝐬. We made that vision a reality.

What makes this PET flex PCB project special?

✅ It's double-sided with complex routing and fine traces.

✅ It's populated on both sides with ultra-small components.

✅ Multiple FR4 stiffeners provide robust support for component mounting and corners/turns.

At PCBONLINE, we don’t just manufacture flex PCBs; we provide end-to-end engineering support and high-precision SMT assembly for advanced applications like wearables, medical devices, and high-end aerospace electronics.

👀 See the intricate details for yourself. The blog link is posted in the comments.

12/03/2026

𝐖𝐡𝐲 𝐀𝐝𝐡𝐞𝐬𝐢𝐯𝐞 𝐃𝐢𝐬𝐩𝐞𝐧𝐬𝐢𝐧𝐠 𝐢𝐬 𝐭𝐡𝐞 "𝐒𝐢𝐥𝐞𝐧𝐭 𝐆𝐮𝐚𝐫𝐝𝐢𝐚𝐧" 𝐨𝐟 𝐁𝐚𝐭𝐭𝐞𝐫𝐲 𝐒𝐚𝐟𝐞𝐭𝐲 🛡️🔋

In the world of Cell Contact Systems (CCS), precision welding and robust busbars get all the glory. But there is a critical process happening behind the scenes that determines whether a battery pack lasts 5 months or 5 years: Adhesive Dispensing.

At 𝐏𝐂𝐁𝐎𝐍𝐋𝐈𝐍𝐄, we treat dispensing as a core safety pillar.

How Dispensing Protects Your Battery Pack:
📍 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐨𝐫 𝐑𝐞𝐢𝐧𝐟𝐨𝐫𝐜𝐞𝐦𝐞𝐧𝐭: Prevents pin damage from vehicle vibrations.
📍 𝐍𝐓𝐂 & 𝐅𝐔𝐒𝐄 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧: Seals sensors against moisture and electrolyte vapors.
📍 𝐖𝐞𝐥𝐝 𝐏𝐨𝐢𝐧𝐭 𝐈𝐧𝐬𝐮𝐥𝐚𝐭𝐢𝐨𝐧: Prevents oxidation of nickel/copper solder joints.

The PCBONLINE Advantage:
We specialize in turnkey CCS for 𝐄𝐧𝐞𝐫𝐠𝐲 𝐒𝐭𝐨𝐫𝐚𝐠𝐞 (𝐄𝐒𝐒), 𝐄-𝐦𝐨𝐭𝐨𝐫𝐜𝐲𝐜𝐥𝐞𝐬, and 𝐋𝐨𝐰-𝐬𝐩𝐞𝐞𝐝 𝐄𝐕𝐬 (Golf carts, Yachts). We control the entire chain—from FPC fabrication to laser welding—allowing us to offer a 5-𝐲𝐞𝐚𝐫 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞.

👇 Check the first comment for our full technical blog on CCS Dispensing!

07/03/2026

🔧 𝐒𝐞𝐫𝐯𝐞𝐫 𝐌𝐨𝐭𝐡𝐞𝐫𝐛𝐨𝐚𝐫𝐝 𝐏𝐂𝐁 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬: 𝐓𝐔-883𝐏 𝐯𝐬 𝐈𝐓-968𝐓𝐂

In high-performance server motherboard design, selecting the right PCB laminate is critical for signal integrity, thermal stability, and long-term reliability.

Two widely used materials in the industry are 𝐓𝐔-883𝐏 and 𝐈𝐓-968𝐓𝐂.

Recently, many manufacturers prefer TU-883P due to its strong performance in server applications. However, its lead time can be quite long — typically 25–42 days according to the official schedule, which may affect projects with tight production timelines.

For this reason, many engineers are considering 𝐈𝐓-968𝐓𝐂 as a reliable alternative. Although its material cost is slightly higher, IT-968TC offers several advantages:

✔ Comparable performance for server motherboard applications
✔ Shorter procurement lead time
✔ Excellent electrical and thermal performance
✔ Proven reliability in high-end computing systems

Because of these benefits, 𝐈𝐓-968𝐓𝐂 𝐢𝐬 𝐢𝐧𝐜𝐫𝐞𝐚𝐬𝐢𝐧𝐠𝐥𝐲 𝐮𝐬𝐞𝐝 𝐢𝐧 𝐬𝐞𝐫𝐯𝐞𝐫 𝐦𝐨𝐭𝐡𝐞𝐫𝐛𝐨𝐚𝐫𝐝 𝐝𝐞𝐬𝐢𝐠𝐧𝐬, especially when supply chain stability is important.

At 𝐏𝐂𝐁𝐎𝐍𝐋𝐈𝐍𝐄, we provide 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐚𝐧𝐝 𝐨𝐧𝐞-𝐬𝐭𝐨𝐩 𝐏𝐂𝐁𝐀 𝐦𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐢𝐧𝐠 𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬, helping customers select suitable PCB materials and ensure stable production.

📖 We also shared a deeper comparison of these two materials in our latest blog.

Link in the comments 👇

19/09/2025

The key to solder paste stencil design is designing the stencil apertures properly. Our engineering team has rich experience in solder paste stencil design. We don't just copy pad shapes but also adjust aperture designs to prevent solder defects and form long-term solder joints.

Here are some proven stencil design techniques used at :

Fine-pitch ICs and QFPs – To prevent stress concentration, we design the two ends of the aperture with rounded corners.

BGAs and ultra-small passives (0402, 0201) – Square-shaped apertures are used for consistent solder ball formation.

QFN ground pads – When applying a cross-shaped ("+") aperture, we ensure at least 0.5 mm clearance from the PCB pad edge to avoid solder beads and guarantee effective grounding.

USB, Mini USB, and CF/SD connectors – For connector grounding apertures, we extend the length in a 1:1.2 ratio to increase solder volume. To reduce stress and prevent solder beads, we use an inward concave opening method.

General ball-grid aperture rule – The aperture width must allow at least four solder balls to pass through freely, ensuring reliable reflow results.

17/09/2025

3D AOI

After reflow, every PCB is inspected again by a 3D AOI machine.

AOI checks the quality of solder joints, verifying criteria such as solder fillet shape, wetting, and bridging. With 3D analysis, hidden defects like insufficient solder height or voiding can be detected.

By combining both pre-reflow and post-reflow AOI, PCBONLINE ensures that every defect is caught early, leading to a near-zero defect rate in shipped assemblies.

12/09/2025

The GPU PCB is the electronic platform that connects the GPU to other components, such as high-bandwidth memory (HBM), the motherboard (via PCIe), and the power delivery system.

At , our GPU PCBs provide a stable, low-noise environment for the GPU to operate at peak performance and ensure robust power and signal integrity.

Compared with other PCBs, a GPU PCB presents these features:

A high layer count of at least 24 layers and high-density interconnect

Handling extreme data rates and high frequencies

Managing significant power consumption and heat generation

The need for a perfect balance between thermal management and signal integrity

11/09/2025

Reflow Soldering Precision in GPU PCB Assembly

Some engineers mistakenly believe that GPU PCBs require higher reflow temperatures. In reality, the challenge lies in precise control of the reflow curve, not excessive heat.

With lead-free solder (SAC305), the peak temperature is 240–250 °C.

The key to reflow in GPU PCB assembly is to strictly control the ramp-up and ramp-down rate to prevent thermal shock, warpage, and solder defects.

During the process design, the PCBA engineers at PCBONLINE will provide a properly profiled reflow curve. It ensures that all solder balls melt and wet evenly, without damaging the GPU BGA package or PCB.

applies customized reflow profiles for GPU assemblies, based on PCB size, component density, and thermal mass, ensuring consistent high-quality results.

05/09/2025

Through-Hole Technology (THT)

Since high-voltage PCBs rely heavily on components, PCB assembly requires specialized processes:

· Ensuring complete solder joint integrity and optimal solder volume is critical.

· Proper wave soldering techniques must be applied to avoid weak joints.

· Thermal management during soldering is more demanding due to thicker copper layers.

At , we use custom wave soldering jigs to guarantee quality. We design the PCBA fixture for wave soldering to prevent long-leaded or lightweight components from lifting during and ensure full solder fill for robust mechanical and electrical connections.

03/09/2025

The formula P = V × R reminds us that power electronics must often deal with both high voltage and high current. While standard FR4 PCBs and flexible PCBs commonly operate in the 3.3V–24V range (3.3V, 5V, 12V being the most typical), many modern applications demand far higher voltages. High-voltage PCBs are essential for devices that operate at 100V to 1000V, or even higher.

High-voltage applications include industrial controls, industrial power supplies, inverters, EV charging piles, and specialized medical devices such as defibrillators. Building a that can withstand such high voltages requires more than just thicker copper PCBs. High-voltage PCBs require wide trace space, high-voltage-withstand materials, high-voltage components, strict PCB quality control, and precise assembly.

Address

Ansheng Road, No. 4 Building Shajing, Baoan District
Shenzhen
518100

Telephone

+8675527398155

Website

https://www.pcbonline.com/

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