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Electronics SMT PCB SMD Assembly Components 12 Layer OEM

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Detail Information

Product Description

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

OEM pcb smd assembly

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
Item	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(0.6mm0.3mm) Max size: 200 125 Component thickness: T≤15mm	01005(0.3mm0.2mm) 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

PCBA Prototype

Industrial Control PCBA

Telecom PCBA

Medical PCBA

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

Tags:

PCB Manufacturing

PCB Prototype

HDI PCB

Flexible PCB

Rigid Flex PCB

High TG PCB

High Frequency PCB

Aluminum PCB

Thick Copper PCB

Ceramic PCB

PCB Assembly

SMT Assembly

BGA Assembly

Through Hole Assembly

Box Build Assembly

Prototype PCB Assembly

Industrial PCBA

Telecom PCB Assembly

Medical PCBA

Automotive PCBA

Electronic PCBA

Lighting PCB Assembly

PCB Component Sourcing

PCB Manufacturing

PCB Prototype

HDI PCB

Flexible PCB

Rigid Flex PCB

High TG PCB

High Frequency PCB

Aluminum PCB

Thick Copper PCB

Ceramic PCB

PCB Assembly

SMT Assembly

BGA Assembly

Through Hole Assembly

Box Build Assembly

Prototype PCB Assembly

Industrial PCBA

Telecom PCB Assembly

Medical PCBA

Automotive PCBA

Electronic PCBA

Lighting PCB Assembly

PCB Component Sourcing

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