Shenzhen Pcb Electronics Ltd

Professional Circuit Board Manufacturer

Mainly Serves B2b Enterprises In The Electronics Manufacturing, Automotive, Medical Equipment, And Telecommunications Industries.

Main products

Pcb BoardCircuit BoardControl PanelSmt Chip

Minimum Order Quantity
3000 Usd
Delivery lead time
Delivery Within 7 Days After Order Placement
Response time
Within 12 Hours
Trust Guarantee

Qualifications and Certifications and Honors

Multiple international certifications, strict quality control, safeguarding your procurement.

Iatf 16949 Quality Management System Certification
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Iatf 16949 Quality Management System Certification

Proof of compliance with automotive industry quality management system requirements

Certified
Quality Management System Certification Certificate
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Quality Management System Certification Certificate

Prove that the enterprise quality management system conforms to the standard

Certified
Iso 14001 Environmental Management System Certification
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Iso 14001 Environmental Management System Certification

Prove that the enterprise environmental management system meets the standards

Certified
Iso13485 Medical Device Quality Management System Certificate
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Iso13485 Medical Device Quality Management System Certificate

Prove that quality management related to medical devices complies with standards

Certified
Manufacturing capability

Factory real-world display

Modernized production line, strict quality inspection process, ensuring the quality of every product is outstanding

📹 Watch the full process of our production line, from raw materials intake to finished goods outbound, every step is strictly controlled。 Advanced automated equipment, paired with an experienced technical team, ensures product quality is stable and reliable。

6-10 Items
Number of production lines
Highly automated, ample production capacity
1000-5000 Square Meters
Factory area
modernized manufacturing base
101-200 People
Number of employees
An experienced team
Product Information Center

Product Information Center

Get detailed product information, to help you quickly make purchasing decisions.

Pcb And Electronics Manufacturing Related Keywords Directory

Summary of PCB, EMS and other electronics manufacturing related Chinese-English keywords

Contents:
Pcb Manufacturing And Assembly Related Keywords
Smt Patch Related Service Keywords
Ems Electronic Manufacturing Services Keywords
Pcb Prototype Customization Related Keywords
Flexible Industrial Medical Pcb Keywords

Longzhijie Electronics Product Catalog

Introduce the company profile and related business of a PCBA manufacturer.

Contents:
Basic Overview Of The Enterprise And Production Base
Pcb/fpc/smt Related Design Services
Production Advantages Of Various Types Of Factories
Component Selection And Full Bom Service
Multi-category Pcb Product Display
Relevant Qualifications And Partner/client Information
Customized services

OEM/ODM Customization Services

Professional customized services,to build your own brand products
Flexible minimum order quantity, to meet the customization needs of different scales.

Material customization

Choose specific materials and formulations, to optimize product performance

Click to inquire about a customized solution

Custom specifications

Customizable product specifications such as width, length, and thickness to meet special requirements.

Click to inquire about a customized solution

Color customization

Custom colors,create unique products

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Pattern customization

Custom printed patterns and designs, to meet brand promotional needs

Click to inquire about a customized solution

Feature customization

Customize special features according to application scenarios,improve product performance

Click to inquire about a customized solution

Structural customization

Customized structural hierarchy, to meet special process requirements.

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Logo customization

Print your brand Logo, enhance brand recognition.

Click to inquire about a customized solution

Custom packaging

Packaging solutions tailored to brand requirements

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Accessory customization

Custom tooling and accessories,providing a complete solution

Click to inquire about a customized solution

Software customization

Provide complementary software and digital solutions

Click to inquire about a customized solution

Ready to start your customized project?

Our professional team will provide you with one-on-one consulting service.
From design to production, we provide end-to-end support for your customization needs.

After-sales service

After-sales service process and cases

A comprehensive after-sales system that makes your purchasing worry-free

After-sales service process

4 steps to efficiently resolve your after-sales issues, the professional team will follow up throughout the entire process

1

Submit after-sales application

Submit your application via WhatsApp, email, or online customer service.

2

Rapid response

Respond on the same business day,confirm the issue and provide a solution.

3

Problem handling

Technical support arranged within 48 hours

4

Follow-up feedback

Full follow-up throughout the process until the issue is fully resolved.

After-sales service case

Real customer cases, witness our professional service and commitment

Case Study: Remote Technical Support For Batch Soldering Defects In Pcba At A Major European Automotive Electronics Manufacturer

Problem description

A customer (*** Electronics GmbH) purchased a batch of PCB boards and SMT assembly services for automotive control modules from our company, totaling 120,000 pieces. After the first week of assembly, the customer reported that approximately 3,500 pieces exhibited cold solder joints and insufficient wetting, with a defect rate close to 3%, far exceeding the agreed AQL 0.65 standard. The customer's production line was forced to halt, and they demanded that our company immediately assume full responsibility, provide compensation, and offer urgent technical support.

Solutions

Our company immediately initiated the remote technical support service process: 1) Arranged FAE engineers to connect with the customer's IQC and SMT production line via video conference + high-definition microscope, guiding the customer to perform cross-section analysis and push-pull force testing on defective boards, while simultaneously retrieving our SMT reflow oven temperature curve records; 2) Through remote comparison, it was found that the customer, in order to rush work, had lowered the reflow peak temperature to 235°C (below the recommended solder paste peak of 245±5°C), and the chain speed was too fast, resulting in insufficient soaking time; 3) Our engineers guided the customer online to adjust the oven temperature curve to 240°C, reduce the chain speed to 85cm/min, and perform rework-style reflow processing on 20,000 boards that had been placed but not yet soldered; 4) Simultaneously arranged a 24-hour China-Europe customer service hotline, and urgently air-shipped 5kg of the same batch of solder paste and 3 temperature measurement boards to the customer for retesting.

Processing result

After the customer adjusted parameters following remote guidance, production ran continuously for 48 hours. Random inspection of 3,000 pieces showed no cold solder or virtual solder joints, with the defect rate dropping to 0.08%. The remaining 20,000 pieces were reworked and all passed ICT and functional testing, and the customer's production line resumed mass production. The final root cause confirmed by the customer was improper oven temperature settings on their side. Our company only charged remote support fees, avoiding a full-batch return claim of approximately RMB 1.2 million. Moreover, the customer placed an additional new order of 50,000 pieces that month and stated they would continue using our remote technical support service.

Case Of Batch Impedance Defects And Returns/replacements For Large Quantities Of Pcbs Exported To Europe

Problem description

A foreign customer (*** company) ordered a batch of 4-layer ENIG PCB boards, totaling 80,000 pieces, for industrial control modules. During IQC sampling inspection, the customer found that about 12% of the boards had out-of-spec high-frequency signal transmission impedance values, leading to signal reflection and high bit error rates in final product testing after SMT assembly. The customer has already assembled 6,000 pieces, of which about 700 showed functional defects, and requires a full batch return/replacement and compensation for the incurred SMT losses. Internal investigation revealed that the issue originated from dielectric thickness fluctuation in a certain batch of copper-clad laminates and etching line width deviation, which is a process control issue on our side.

Solutions

1. Arrange a video conference with the quality/technical team and the customer at the earliest opportunity to confirm the failure mode, and retrieve production records and outgoing inspection reports, acknowledging responsibility for the process; 2. Conduct 100% impedance testing and screening on the remaining 74,000 units of inventory boards, remove defective units, and first air-freight the conforming units to the customer to ensure the customer's production line does not stop; 3. For the 6,000 units already mounted by the customer, our company bears all labor and material costs for component removal, PCB scrapping, and re-mounting, and compensates at the unit price agreed upon by both parties; 4. Process all 80,000 units as returns, and at the same time, free of charge, re-produce a new batch of boards using stricter impedance control processes (100% TDR inspection), and expedite shipment in batches via sea and air freight, with delivery shortened by one week compared to the original schedule; 5. Submit third-party laboratory test reports with the shipment, and update process control standards (100% incoming inspection of dielectric thickness, SPC control of etched line width) to prevent recurrence.

Processing result

After the customer received all the qualified PCBs from the replacement and re-production, the impedance retest pass rate was 100%, and the production line resumed smooth operation. All 80,000 defective units from the returned goods were destroyed by our company. Our company bore the return shipping costs, SMT losses, and rework expenses totaling approximately RMB 380,000. The customer acknowledged our response speed and compensation plan, and resumed the previously suspended follow-up order of 150,000 new units. The cooperation between both parties continues.

Offline Technical Support Service Case For Batch Pcb Soldering Defects Of A Major Overseas Industrial Control Equipment Customer

Problem description

Customer *** (a European industrial equipment manufacturer) purchased a batch of 4-layer PCBs for industrial controllers from our company, with a single order quantity of 50,000 pieces. After SMT assembly, the customer reported that approximately 15% of the boards exhibited open solder joints / cold solder joints during ICT testing, concentrated in the QFP-128 and BGA package areas. The customer requires our company to immediately arrange technical support personnel to visit their overseas factory to analyze the root cause on-site and provide a batch solution; otherwise, they will suspend subsequent orders and file a claim.

Solutions

Our company urgently dispatched 2 senior process engineers and 1 failure analysis engineer, arriving at the customer's factory within 48 hours. On-site cross-section analysis, X-Ray inspection, and re-measurement of the soldering temperature profile revealed that the failure was caused by the customer's reflow oven temperature being set too low (peak temperature only 235°C), and the PCB pad surface finish being ENIG, which has poor compatibility with the leaded solder paste used by the customer. Our engineers assisted the customer in re-optimizing the reflow profile, adjusting the peak temperature to 245°C and increasing the soak zone time; additionally, for the BGA area, they recommended better solder paste printing parameters. For the defective boards already produced, our team guided the customer on-site in using a rework station for BGA/QFP touch-up soldering, and provided a batch of dedicated stencil fixtures free of charge. Furthermore, we provided the customer in advance with the PCB solder mask thickness and pad solderability reports for subsequent orders, and dispatched an on-site quality control officer to assist the customer in continuously monitoring the production process for 3 batches.

Processing result

After 3 days of on-site debugging and capacity verification, the customer's production line welding defect rate dropped from 15% to below 0.3%. Over 95% of the 5,000 defective boards reworked passed ICT testing. The customer eventually resumed normal production. Subsequently, the customer placed a new order of 200,000 units and listed our company as an A-level priority supplier.

Any after-sales issues?Our professional team is at your service at all times.

Company Information

About Us

Shenzhen Pcb Electronics Ltd

Address

Shenzhen, China

2006
Date of establishment
101-200 People
Number of employees
1000-5000 Square Meters
Factory floor area
6-10 Items
Number of production lines
100-500 Million Yuan
Annual turnover
215+
Export country
98%+
Customer satisfaction
3000 Usd
Minimum order quantity
Within 12 Hours
Response time

Provide Customized Solutions

Online customer service
7*24h
Manual service
All day except statutory holidays