Leading manufacturer of PCB Fabrication and Assembly in China.
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rita@led-pcbs.com
PCB Electronic Manufacturing Services
YIZHUOPCB offers One-Stop and In-House PCB Assembly Services for your boards at the scale you need, whether you need quick-turn prototypes or high-volume PCB assembly service.
One-stop Full & Partial Turnkey PCB Assembly Service
Turnkey PCB Assembly Service
Bare PCB fabrication, component sourcing, and assembly.
LED PCB Assembly
Provide us with bare PCB boards and/or components and we will take care of the assembly.
SMT Assembly Service
From 01005 passives to micro BGAs, we can place just about any SMT component.
Prototype PCB Assembly Service
The prototype PCB assembly runs before mass production.
In-House PCB Assembly Manufacturer in China
Your Trusted PCB Assembly Services in China
High-quality PCB assembly services require knowledge beyond just electronic components and assembly; it also requires expertise in PCB design, layout, material management, manufacturing, assembly, and testing.

As one of China’s leading turnkey PCB assembly manufacturers and companies for all printed circuit board production services – PCB manufacturing, component sourcing, assembly, and testing/inspections. We can provide the most advanced and nearly limitless capabilities for your PCB prototype or mass production.
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Turnkey PCB assembly service means one-stop electronic manufacturing services provided by PCB assembly service providers, including bare PCB manufacturing, component procurement, assembly and testing, packaging and shipping, etc.


One-stop Solution for PCB Assembly

Benefits of Turnkey PCB Assembly Service

For you, delegating all or part of the business for parts sourcing, assembly, and testing to us is beneficial for many reasons, as follows:

> Stable supply chain – We have established friendly relationships with all the major authorized component vendors such as Mouser, Digi-Key, Arrow Electronics, and others, allowing us to a better price, more accurate ordering, more on-time delivery, and more.

> Inventory management – Turnkey PCB assembly minimizes or eliminates the need for additional inventory storage for electronic components.

One-time Delivery – We will ensure on-time delivery.

> Save Your Time – Saves time for you to utilize more effectively on other aspects of the project.

> Quality Control – More quality assurance control through every process step, including proper labeling, shipment, storage, and a wide range of PCB assembly testing plans.

> Latest technology – Benefit from the latest technology without new capital expenditures.

> Save Cost – Reduced in-house kitting costs, including labor and intermediary shipping/receiving.


Typically, a full turnkey PCB assembly will ensure quick delivery and more consistent end-products leading to a shorter time to market!

PCB ASSEMBLY MANUFACTURER IN CHINA
Why Prefer us for PCB Assembly Service?
Are you looking for the best PCB Assembly manufacturer? Whenever you need prototype PCB assembly services or mass production in China – in short, medium or long runs, we can offer PCB assembly service according to your specifications. We are a professional PCB assembly company, and we offer PCB services more than an average PCB assembly at different stages of your PCB product design and development.


ON TIME DELIVERY
> Quick turn assembly.
> Competitive Pricing.
> Prototype to Mass production.
> No MOQ; orders start from 1pcs.
> 7/24 Live sales & Large Support Team.
> Best On-time Delivery.
> High-end equipment and expertise.
> 100% E-test and AOI inspection.
> We complete a set of reliable parts suppliers.
QUALITY GUARANTEE
AFFORDABLE PRICES
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PCB Assembly Technology:
  • Surface Mount Technology (SMT)
  • Through Hole Technology (THT)
  • Mixed PCB Assembly Technology
  • Single or double-sided Placement
Capabilities
PCB Assembly Service Capabilities
PCB Types:
  • Rigid PCB Boards
  • Flexible Circuit Boards
  • Rigid-Flex PCBs
  • Metal Core PCBs
Soldering Types:
  • Reflow Soldering
  • Wave Soldering
  • selective wave soldering
  • Manual Soldering
Component Size:
  • Smallest Components
  • Micro BGA
  • Fine Pitch Components
  • 0201 chip packages
  • 0.4 mm pitch BGA
  • 0.4 mm fine pitch
Component Package:
  • Reels
  • Tube and tray
  • Cut tape
  • loose parts and bulk
Components Sourcing:
  • Full Turnkey
  • Partial Turnkey
  • Consigned/kitted
CONTACT US TO LEARN MORE ABOUT OUR PCB ASSEMBLY CAPABILITIES
Turn Time:
  • Scheduled delivery
  • Assembly without components sourcing – 1-5 days
  • Turnkey assembly (sourcing+assembly) – 1-2 weeks
  • The final lead time for a circuit board assembly order is sourcing lead time +assembly time.
PCB Surface Finish
  • HASL (Hot Air Solder Leveling)/Lead-free HASL
  • ENIG (Electroless Nickel Immersion Gold)
  • OSP (Organic Solderability Preservatives)
  • Immersion Tin
  • Immersion Silver
  • ENEPIG
Volume:
  • No minimum order quantity
  • Engineering prototypes PCB assembly
  • Low-volume PCB assembly
  • High-volume PCB assembly
How to place a PCB assembly order?
Order Flowchart

Send Files to 

rita@led-pcbs.com

1. Gerber files
2. BOM
3. Quantity
4. Assembly drawing
5. Pick & Place file
6. Shipping address
7. Other requirements

Respone and Quote within 24 hours

1. Detailed Quotation
2.Question/Suggestion

Customer Confirmation/Place Order

1. Paypal
2. Credit Card
3. Wire Transfer
4. Payment Before Production

Start Production

1. PCB Fabrication
2. Components Sourcing
3. Assembly

Quality Control and Delivery

1. Testing and Inspection
2. Customer Checking the image of the board
3. Packed with anti-static bag
4. 100% customer satisfaction service
CONTACT US FOR A QUICK QUOTE
PCB Assembly Process and Technology

02. Through-hole Technology Assembly Process


The through-hole components are placed on one side of the PCB board and soldered on the other; they are soldered using wave soldering or hand soldering.

THT assembly process step is as follows:

Step 1 – Components Placements
The components are placed on the PCB board with pins passing through the via holes. The components placement can be either manual or automatic machine.

Step 2 – Soldering
The through-hole components soldering can be either manual or wave soldering.
Wave soldering is done at a high temperature.

Step 3 – Inspection and Functionality testing
The through-hole PCB is also inspected to find potential assembly flaws and later tested to check its functionality, like SMT assembly.unctionality testing stage. This is to ensure that the PCB performs the required functions.

01. Surface Mount Technology Assembly Process


Apply solder paste; components are placed in PCBs. This PCB assembly technology is termed Surface Mount technology. It has small components as compared to Through-hole Technology.

The SMT PCB assembly process is as follows:

Step 1 – Apply Solder Paste to the pads of the PCB
Stencil is an indispensable tool for solder paste printing. Surface mount devices are placed on the PCB board after applying solder. Solder paste inspection will be applied to this stage.

Step 2 – Components placement
Once the solder paste has been applied to the circuit board, the board is ready for component soldering. The pick and place process of SMD is automated.

Step 3 – Reflow Soldering
The solder paste and components have been placed on the circuit board now, and then the next step is the reflow soldering process.

Step 4 – Assembly Inspection
To ensure the quality of surface mounting, we will apply the following inspection methods:

    Automatic Optical Inspection
    X-ray Inspection

    First Article Inspection


    Step 5 – Functionality Testing
    After the PCB successfully passes the inspection phase, it goes through the functionality testing stage. This is to ensure that the PCB performs the required functions.

    Printed Circuit Board Assembly Process

    03. Mixed Technology PCB Assembly Process


    Sometimes, Through-hole and Surface mount technology will be used simultaneously.

    Single side mixed
    All these procedures, such as applying solder paste, components Placement, Reflow soldering, Placement via Through-hole parts, and Wave soldering, respectively, are mandatory.

    Among the two sides, SMT One is THT
    Procedures like Surface mount technology, SMD Placement, Solidification, Flipping, THT parts placement, and Wave soldering, respectively, must be followed for the requirements.

    Double side mixed
    In this case, PCB assembly can be processed either with adhesive or without adhesive. Surface mount adhesive is the optional step. All the steps of the single side and among the two sides are used. For non-adhesive, you have to skip the step SMT adhesive step.