OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
Certification:ISO, UL, IPC, Reach
Minimum Order Quantity:1
Delivery Time:5-30 days
Payment Terms:T/T
Supply Ability:Post-soldering 700,000 points/day
Layer:4 Layer
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Location:
Shenzhen China
Address:
Yasen Industrial Park, Baolong Street, Longgang District, Shenzhen
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within 48 hours
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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:
- Top Layer – Signal routing (components often placed here)
- Internal Layer 1 – Ground plane (GND)
- Internal Layer 2 – Power plane (VCC)
- 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
♦ Advantages of DQS Team
- 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
OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly
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