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OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
Specifications
Certification :
ISO, UL, IPC, Reach
MOQ :
1
Payment Terms :
T/T
Supply Ability :
Post-soldering 700,000 points/day
Delivery Time :
5-30 days
Layer :
4 Layer
Material :
FR4
Board Thickness :
1.5mm
Surface Finish :
Immersion Gold
Pin Space :
0.2mm
Application :
Medical
Description


OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly



♦ What Is 4 Layer PCB Board?


A 4-layer PCB is a printed circuit board that contains four conductive copper layers separated by insulating material (typically fiberglass and epoxy resin, like FR4). These layers are laminated together under heat and pressure to form a single, solid board.


Structure of a 4-Layer PCB:

The typical stack-up is:
  1. Top Layer – Signal routing (components often placed here)
  2. Internal Layer 1 – Ground plane (GND)
  3. Internal Layer 2 – Power plane (VCC)
  4. Bottom Layer – Additional signal routing
This configuration helps:
  • Reduce electromagnetic interference (EMI)
  • Improve signal integrity
  • Provide stable power distribution
  • Allow denser and more complex routing than 2-layer boards


♦ Types of PCB Assembly Services:​​

    • ​​Turnkey PCB Assembly​​: Full service (PCB fabrication + component sourcing + assembly).
    • ​​Partial (Consignment) Assembly​​: Customer provides components; the assembler handles soldering.
    • ​​Prototype Assembly​​: Low-volume assembly for testing designs.
    • ​​High-Volume Production​​: Mass production for commercial devices.



DQS Electronic Group is one of the leading EMS company in China, we provide PCB design, PCB manufacturing, PCB assembly service and testing. Welcome send us your Gerber file to get free quotation. Our email: info@dqspcba.com




♦ Technical Parameters


PCB Assembly Capability

Item

Normal

Special

SMT

Assembly

PCB(used for SMT)

specification

Length and Width( L* W)

Minimum

L≥3mm, W≥3mm

L＜2mm

Maximum

L≤800mm, W≤460mm

L ＞ 1200mm, W＞500mm

Thickness( T)

Thinnest

0.2mm

T＜0.1mm

Thickest

4 mm

T＞4.5mm

SMT components specification

Outline Dimension

Min size

0201(0.6mm*0.3mm)

01005(0.3mm*0.2mm)

Max size

200 * 125

200 * 125

component thickness

T≤15mm

6.5mm＜T≤15mm

QFP,SOP,SOJ

(multi pins)

Min pin space

0.4mm

0.3mm≤Pitch＜0.4mm

CSP/ BGA

Min ball space

0.5mm

0.3mm≤Pitch＜0.5mm

DIP

Assembly

PCB specification

Length and Width( L* W)

Minimum

L≥50mm, W≥30mm

L＜50mm

Maximum

L≤1200mm, W≤450mm

L≥1200mm, W≥500mm

Thickness( T)

Thinnest

0.8mm

T＜0.8mm

Thickest

3.5mm

T＞2mm





♦ Application Fields


OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
PCBA Prototype Industrial Control PCBA Telecom PCBA Medical PCBA
OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
Automotive PCBA Consumer Electronic PCBA LED PCBA Security PCBA





♦ Advantages of DQS Team

  1. On-time Delivery:
    • Owned PCBA factories 15,000 ㎡
    • 13 fully automatic SMT lines
    • 4 DIP assembly lines


2. Quality Guaranteed:

    • IATF, ISO, IPC, UL standards
    • Online SPI, AOI, X-Ray Inspection
    • The qualified rate of products reach 99.9%


3. Premium Service:

    • 24H reply your inquiry
    • Perfect after-sales service system
    • From prototype to mass production






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OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly

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Product Detail
Certification :
ISO, UL, IPC, Reach
MOQ :
1
Payment Terms :
T/T
Supply Ability :
Post-soldering 700,000 points/day
Delivery Time :
5-30 days
Layer :
4 Layer
Contact Supplier
OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly

DQS Electronic Co., Limited

Verified Supplier
1 Years
shenzhen
Business Type :
Manufacturer
Main Products :
PCB Manufacturing, PCB Prototype, SMT Assembly
Employee Number :
>800
Certification Level :
Verified Supplier
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