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PCB Assembly
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Electronics SMT PCB SMD Assembly Components 12 Layer OEM

Electronics SMT PCB SMD Assembly Components 12 Layer OEM

MOQ: 1
Price: Contact us
Payment Terms: T/T
Detail Information
Place of Origin:
China
Certification:
ISO, UL, IPC, Reach
Layer:
12 Layer
Material:
FR4
Board Thickness:
2.5mm
Surface Finish:
Immersion Gold
Pin Space:
0.25mm
Application:
Electronic Products
Highlight:

12 Layer pcb smd assembly

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OEM pcb smd assembly

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OEM smt pcb assembly

Product Description
Electronics PCB Components Assembly and SMT Assembly
Product Specifications
Attribute Value
Layer 12 Layer
Material FR4
Board Thickness 2.5mm
Surface Finish Immersion Gold
Pin Space 0.25mm
Application Electronic Products
12 Layer Industrial Control SMT PCB Assembly

Electronics PCB Components Assembly (also called PCBA - Printed Circuit Board Assembly) is the process of mounting and soldering electronic components onto a bare PCB to create a functional circuit board. This process transforms a blank PCB into a working electronic device, such as a smartphone, computer, or IoT gadget.

Key Stages of PCB Components Assembly
1. Component Selection & Procurement
  • Passive Components (resistors, capacitors, inductors)
  • Active Components (ICs, transistors, diodes)
  • Electromechanical Parts (connectors, switches, relays)
2. PCB Assembly Methods

There are two primary assembly techniques:

A. Surface-Mount Technology (SMT) Assembly
  • Components are placed directly onto PCB pads
  • Process Steps:
    1. Solder Paste Application (using a stencil)
    2. Pick-and-Place Machine (automated component placement)
    3. Reflow Soldering (melts solder paste in an oven)
  • Best for: High-density, compact designs (e.g., smartphones, laptops)
B. Through-Hole Technology (THT) Assembly
  • Components have leads inserted into drilled holes
  • Process Steps:
    1. Manual/Automated Insertion of components
    2. Wave Soldering (solder flows over the board)
  • Best for: High-power, durable applications (e.g., industrial equipment, automotive)
C. Mixed Assembly (SMT + THT)

Combines both methods for complex designs.

PCB Assembly Process Flow
Step Description
1. Solder Paste Printing A stencil applies solder paste to PCB pads
2. Component Placement Pick-and-place machines position SMD components
3. Reflow Soldering Heats PCB to melt solder and form connections
4. Through-Hole Insertion THT components are manually/machine-inserted
5. Wave Soldering (THT) Solder bonds THT components to the board
6. Inspection & Testing AOI (Automated Optical Inspection), X-ray (for BGAs), functional testing
7. Conformal Coating (Optional) Protects PCB from moisture, dust, and corrosion

DQS Electronic Group is one of the leading EMS companies in China, providing PCB design, PCB manufacturing, PCB assembly service and testing. Welcome to send us your Gerber file to get a free quotation. Our email: sales@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
Maximum: L≤800mm, W≤460mm
L<2mm
L>1200mm, W>500mm
Thickness( T) Thinnest: 0.2mm
Thickest: 4 mm
T<0.1mm
T>4.5mm
SMT components specification Outline Dimension
Min size: 0201(0.6mm*0.3mm)
Max size: 200 * 125
Component thickness: T≤15mm
01005(0.3mm*0.2mm)
200 * 125
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
Maximum: L≤1200mm, W≤450mm
Thickness( T)
Thinnest: 0.8mm
Thickest: 3.5mm
L<50mm
L≥1200mm, W≥500mm
T<0.8mm
T>2mm
Application Fields
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 0
PCBA Prototype
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 1
Industrial Control PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 2
Telecom PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 3
Medical PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 4
Automotive PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 5
Consumer Electronic PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 6
LED PCBA
Electronics SMT PCB SMD Assembly Components 12 Layer OEM 7
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