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Shenzhen KAZ Circuit Co., Ltd


One Stop Service-PCB & Component Sourcing & PCB Assembly

                                                     -------Provide technique support

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Home SamplesPrinted Circuit Board Assembly

immersion gold 2u" FR4 pcb factory pcb assembly shenzhen printed circuit board manufacturers

PCB Certifications
Good quality SMT PCB Assembly
Good quality SMT PCB Assembly
Customer Reviews
We are very satisfied wtih you guys. Quick response, professional engineering team, fast delivery, good quality... all are nice. I am sure we can have much more business in the future.

—— Kevin Kinder

End customers were satisfied with the quality, so did I for the past years. Have recommended you to my other friends that have needs in PCBA.

—— Mariusz Sharp

Thanks for help my small business grows up step by step,for prototypes to small, medium & large orders, you will be my first choice for PCB anytime.

—— Adam Burridge

Good price, fast lead and delivery time, shipping cost is quite good! Our company is satisfied with your good service for the last 4 years!

—— Luboš Herceghová

Hello good afternoon. I received the 80 pcs PCB. Thank you. I like so much that. That is good qualtiy, nice color. Pls take care of the remaining 80 pcs PCB. Thank you. Have a nice day. :)

—— Alice Yoon

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Printed Circuit Board Assembly

  • High Precision Printed Circuit Board Assembly suppliers



Printed Circuit Board Assembly is to plug the SMT(Surface Mounted Technolofy) and the DIP in the Printed Circuit Board, also called PCBA.



Both SMT and DIP are means of integrating components in the PCB board. The main difference is that SMT does not need to drill holes on the PCB,while it's nacessary for the DIP to plug the pin of the component into the drilled hole.



Mainly use the paste to pack machine to attach some micro components the PCB board. The production process is as follows: the PCB board positioning, solder paste printing, paste and pack, return to the soldering stove, finally inspection.

With the development of science and technology,SMT can also be applied to some large-size components.


Insert the componets to the PCB. It is used as a mean to integrate components cause the size is too large to paste and pack, or the manufacturer's production process cannot use SMT technology.

At present, there are two ways to realize manual plug-in and robot plug-in.

The main production processes are as follows: paste back glue (to prevent tin plating to inappropriate places), plug-in, inspection, wave soldering, brush plate (to remove the stain left in the process of passing the furnace) and inspection


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immersion gold 2u" FR4 pcb factory pcb assembly shenzhen printed circuit board manufacturers

immersion gold 2u" FR4 pcb factory pcb assembly shenzhen printed circuit board manufacturers
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Product Details:

Place of Origin: China
Brand Name: KAZ
Certification: ISO9001 | UL ( E337072 ) | TS16949 ( 0259279 ) | RoHS
Model Number: KAZ-S-6448543

Payment & Shipping Terms:

Minimum Order Quantity: 1PC
Price: 0.1-5 usd/pc
Packaging Details: Vacuum Package; Foam Cotton
Delivery Time: 5-8 working days
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 20000㎡ per month
Detailed Product Description
SMT&DIP: Support Application: Subway Equipment
PCB Test: Electric Test PCB Test Way: Flying Probe& Test Jig
PCBA Test: Visual Test; AOI; X-RAY; Function Test Component: Supplied By Customer Or By Manufacturer
Design Service: Support Test Reoort: Support
High Light:

FR4 Pcb Multilayer Fabrication


HDI Pcb Multilayer Fabrication


Immersion Gold Prototype Pcb Assembly

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1. Detailed Specifications

Material FR4
Copper Thickness 1/1/1/1/1/1 OZ
Layer 6
Surface Treatment Immersion Gold 2u''
Soldermask  Blue
Silkscreen White
Min Drill Hole 8 mil
Min Laser hole 4 mil



Here are some more details about PCB assembly services:

Prototyping Services: PCB assembly services often provide prototyping services to help customers refine their designs and test their concepts before moving to mass production. They can offer quick turnaround times for small prototype runs, allowing customers to validate their designs and make necessary modifications before committing to larger production quantities.

Advanced Assembly Techniques: Depending on the complexity and requirements of the PCB design, assembly services may offer advanced assembly techniques. These can include fine-pitch component placement, ball grid array (BGA) assembly, package-on-package (PoP) assembly, flip-chip assembly, and other advanced techniques. These techniques are suitable for high-density PCBs and advanced electronic devices.

Design Revisions and Engineering Changes: PCB assembly services can accommodate design revisions and engineering changes. They can work with customers to implement design modifications, update component selection, and address any changes required during the assembly process. This flexibility allows for iterative improvements and ensures that the final product meets the desired specifications.

Value-Added Services: In addition to the core PCB assembly process, some assembly services offer value-added services. These can include functional testing, programming of microcontrollers or firmware, conformal coating application for protection against environmental factors, custom labeling or branding, and other specialized services tailored to the customer's needs.

Certifications and Standards: PCB assembly services may hold relevant certifications and comply with industry standards. Common certifications include ISO 9001 for quality management systems and IPC-A-610 for acceptability of electronic assemblies. Compliance with these standards ensures that the assembly service follows best practices and meets recognized quality benchmarks.

Confidentiality and Intellectual Property Protection: PCB assembly services understand the importance of confidentiality and intellectual property protection. They have measures in place to safeguard customer designs, data, and proprietary information. Non-disclosure agreements (NDAs) can be established to ensure the confidentiality of sensitive information.

Customer Support: PCB assembly services typically provide ongoing customer support throughout the assembly process. They have knowledgeable staff who can address customer inquiries, provide technical assistance, offer guidance on design optimizations, and ensure effective communication between the customer and the assembly team.

It's worth noting that the specific offerings and capabilities of PCB assembly services may vary. Some services may specialize in particular industries or applications, such as automotive, aerospace, medical, or consumer electronics. Therefore, it's important to evaluate the service provider's expertise, track record, customer reviews, and any relevant certifications to ensure they align with your specific requirements.


2. Pictures

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3. FAQ


Q: What files do you use in PCB fabrication?
A: Gerber or Eagle, BOM listing, PNP and Components Position


Q:Is it possible you could offer sample?
A: Yes, we can custom you sample to test before mass production


Q: When will I get the quotation after sent Gerber, BOM and test procedure?
A: Within 6 hours for PCB quotation and around 24-48 hours for PCBA quotation.


Q: How can I know the process of my PCB production?

A: 5-7days for PCB production and components purchasing, and 14 days for PCB assembly and Testing.


Q: How can I make sure the quality of my PCB?
A: We ensure that each piece of PCB products work well before shipping. We'll test all of them according to your test procedure.

Contact Details
Shenzhen KAZ Circuit Co., Ltd

Contact Person: Stacey Zhao

Tel: +86 13392447006

Fax: 86-755-85258059

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