OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly

Price Negotiable

Price: Contact us

MOQ: 1

Delivery Time: Negotiable

Product Description

OEM and ODM 4 Layer PCB Board Multilayer Circuit Board Assembly

What's 4 Layer PCB?

A 4-layer PCB is a type of multilayer printed circuit board that consists of four conductive copper layers laminated together with insulating material (typically FR-4). These layers are interconnected through vias (plated holes) to form a complete circuit.

Structure of a 4-Layer PCB:

A standard 4-layer PCB stack-up usually includes:

Top Layer (Signal Layer) - Contains component footprints and signal traces.
Inner Layer 1 (Ground Plane, GND) - Provides a low-impedance return path for signals and reduces EMI.
Inner Layer 2 (Power Plane, VCC) - Distributes power efficiently across the board.
Bottom Layer (Signal Layer) - Additional routing space for signals and components.

Technical Parameters

Item	Specification
Layers	1~64
Board thickness	0.1mm-10.0mm
Material	FR-4,CEM-1/CEM-3,PI,High Tg,Rogers
Max panel size	32"×48"(800mm×1200mm)
Min hole size	0.075mm
Min line width	3mil(0.075mm)
Surface finish	OSP,HASL,Imm Gold/Nickel/Ag, Electric gold
Copper thickness	0.5-15 OZ
Soldermask	Green/Yellow/Black/White/Red/Blue
Silkscreen	Red/Yellow/Black/White
Min PAD	5mil(0.13mm)
Inter package	Vacuum
Outer package	Carton
Outline tolerance	±0.75mm
Hole tolerance	PTH:±0.05 NPTH:±0.025
Certificate	UL,ISO 9001,ISO14001,IATF16949
Special request	Blind hole+Gold finger + BGA
Material Suppilers	Shengyi, KB, Nanya, ITEQ,etc.