PCB Manufacturing

Top PCB Manufacturing Factory in China - CJPCB

Top automated lines which have real-time process monitoring, keeping quality steady every time.

CJ PCBA combines cutting-edge tech and top industry expertise. We deliver high-performance PCB surface finishes which meeting the toughest specs, and 24H fast delivery. We have advantage to supply single to multilayer FR4 PCB, Aluminum PCB, Flexible Polymind PCB, Impedance Control PCB, Buried&Blind Holes PCB and etc. Our diverse processes ensure optimal solderability, durability and electrical performance. They suit many uses—from consumer electronics to aerospace systems.

PCB DELIVERY SCHEDULE

Accelerating your projects with fast turnaround times and short lead times for quick delivery.

SAMPLES PCB

QUICK SAMPLE

MASS PRODUCTIONS

1-2L: 2-3 DAYS

1-2L: 3-7 DAYS

1-2L: 3-7 DAYS

4-8L: 2-7 DAYS

4-8L: 7-10 DAYS

10-18L:4-9 DAYS

10-18L:10-15 DAYS

PCB Manufacturing Capabilities

We offer manufacturing of rigid, flexible, rigid-flexible, and aluminum boards, and supporting one – stop, rapid – turnaround PCB assembly solutions. We have experience in manufacturing PCB from single layer till 58layers , 24H fast delivery. FPC can be 1 layer till 6layers.

Rigid PCB(1-58L )

Flex PCB (1-6L)

Rigid-Flex PCB(2-10L)

Aluminum/Copper PCB(1-2L )

Surface Finish

Standard tin spraying, Lead-free tin spraying, Immersion gold, Electroplated nickel-gold, Electroplated hard gold, OSP, Immersion silver, Immersion tin, or Composite processes.

Gold plating(ENIG)

LF-HASL(Lead-Free)

OSP(Antioxidant)

Immersion Silver

Immersion Tin

Our Commitment to Quality

Committing to rigorous quality assurance measures to deliver products that exceed industry standards.

PCB Raw Material

Our PCB boards use genuine Grade-A materials, such as Jian Tao (KB) and Nanya (NY).  Good dimensional stability after heating. Curvature of the board ≤0.75%, Not easy to deformation and plate warping; The copper coating on the hole wall has better adhesive force; no layered or drape in copper. Drilling Roughness ≤25.4UM.

Technology Standard

Standard copper PTH technic makes copper in vias reach 20-22UM. Even better than IPC class 2 requirement (via copper thickness 18-20UM). lesser risk of copper shedding in faults and holes when under high current or high temperature.

Solder Mask

High-quality solder mask inks from brands like Ronda are applied using a photosensitive process. Glossy ink, strong color. Solder resistance thickness up to standard 8-30UM. Help to achieve better filling via with resin and better adhesive force solder mask on your PCB.

Plating&Surface Treatment

Premium electroplating and surface treatment chemicals are employed to achieve a 100% yield rate. Lesser soldering problem, BGA solder risk, make sure copper in via, surface treatment has strictly control within IPC standard. The pollution and oxidation of the board surface, black nickel, abnormal nickel thickness, SCUM (shadow) and other problems are strictly controlled during the operation process.  

6L ENIG 0.8mm

BGA pads

Circuits

Routing

Surface finish

Our PCB Fabrication Procedure

We adhere to the principle of prioritizing quality and service.

PCB production process

Pre – stack → Automatic sheets cutting →Inner pretreatment → lamination machine → Exposure →Developing machine → Layer etching  → Drill machine → AOI testing → Solder mask ink  → Silk screen  → Detection  → FQC  → Packging

FPC production process

Engineering File Preparation → Copper Foil Drilling (PTH, Plated Through Hole) → Copper Plating → Pre-Treatment → Dry Film Lamination & Stamping → Exposure → Development → Etching → Film Stripping → AOI (Automated Optical Inspection) → Pre-Treatment → Coverlay Lamination or Ink Printing → Plating Pre-Treatment → Post-Plating Treatment → Surface Finish → Legend Printing → Electrical Testing → Laser Profiling → FQC (Final Quality Control) → Packaging & Shipment。

WHY PARTNER WITH CJPCBA?

Quality Assurance

Materials and PCB are manufactured in full compliance with customer specifications, ensuring alignment with your quality standards. Stringent quality control is implemented across all stages, resulting in a customer satisfaction rate of over 99%.

Speed & Reliability Service

We has built strategic partnerships with top logistics companies like DHL/FedEx. Ensuring timely deliveries with our speedy and reliable logistics services, keeping your supply chain smooth and efficient.

Rapid Turnaround

24–72-hour turnaround for urgent order. Our company has a complete production process and dedicated order-following personnel to follow up on delivery dates and provide timely feedback on production conditions to ensure on-time delivery.

Competitive price

With our in-house factory and professional team, we minimize intermediate costs to provide the competitive quotes. Optimizing your project’s budget and timeline with cost-effective strategies and efficient planning.

PCB FAQ

What software do you use to view Gerber data?

CAM350/Altium Designer/Genesis2000//PADS/GC-power.

Will our PCB files be checked(before production)?

Our company's engineering team offers free DFM analysis. All data will be reviewed and confirmed after production. If there are any issues, an EQ confirmation will be issued.

What is checked during the E-Test?

The electrical testing of PCBS mainly involves checking whether there are any open or short circuit issues on the PCB board and analyzing whether it matches the customer's design data.

What are the CTI-value of different base materials?

CTI stands for Tracking Index, which is the voltage at which marks are left on the surface of a board when it leaks and burns. For conventional FR4 boards, the CTI value is PLC3, that is, 175<CTI<245.

Can your PCB thickness tolerance be strictly controlled to 0.1mm?

For finished plate thickness less than 1mm, it can be controlled at +/-0.1mm. For finished plate thickness greater than 1mm, the strictest control can be +/-0.13mm. Normally, it is controlled at +/-10%. (Because the plates and materials such as pp have certain tolerances, and the chip tolerance close to +/-0.075mm).

How to order

Submit Requirement

Please send your relevant design documents (such as Gerber/Bom) and requirements. We strictly protect all information provided by our customers. Send us:sales@pcbcustom.com 

Received quotation

You will receive feedback from a dedicated salesperson providing one-on-one service throughout your entire process within 6 hours and a customized quotation within 24 hours.

Sign the contract

After fully understanding the customer's requirements and confirming the price, lead time, payment method, transportation and qualification certification, sign the PI agreement and make prepayment.

Production & delivery

After receiving prepayment, production will be arranged immediately. During the production process, your full-time salesperson will proactively report the production progress to you. Before shipment, detailed photos, test videos and packaging of the products will be taken for your confirmation.

After-sales & Repurchase

We will always react immediately if there is any issue and provide a quick solution. CJ PCBA guarantee the quality and after-sales service for 2 years. If everything well, we will welcome further cooperation.

CUSTOMER REVIEWS

Our Testimonials

Our PCBA Solutions Across Industries

Our products are widely used in electronics, energy, communications, lighting, electrical engineering
safety protection, electrical appliances, digital home appliances, and more.

Medical Electronics

Ventilators, fascia guns, electrocardiographs (ECG), patient monitors, diagnostic devices.

Industrial Electronics

Robotic arms, industrial controllers, CNC machinery, factory automation systems.

Automotive Electronics

In-vehicle systems, dashcams, reverse parking sensors, navigation devices, automotive control modules.

Smart Home (IoT)

Smart locks, automated curtains, smart switches, home energy management systems.

Military Electronics

Military radar systems, communication equipment, field operation devices. Unmanned aerial vehicles.

Communication Electronics

4G/5G equipment, gateways, routers, base stations, network switches.

Security Electronics

Facial recognition systems, access control panels, emergency lights, CCTV cameras.

Consumer Electronics

Electronic toys, LED lighting, audio equipment, skateboards, wearable devices.

Contact Us

Help you easily achieve your electronic product.

Headquarter Address

SEG Plaza 4406A,No. 1002, Huaqiang North Road,Fuqiang Community, Huaqiang North Street, Futian District. Shenzhen

Factory Address

1st Floor, Building H, Tangxi No.2 Industrial Zone, Xijing Road, Gushu, Bao’an District, Shenzhen

Phone

+86-755-85122468

E-mail

sales@pcbcustom.com

Get Free Quote

Our 1-on-1 sales engineer will reply as soon as possible and quote you within one day!

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