High-precision 12-layer multilayer PCB manufactured by WELLER's expert engineering team for industrial control applications
Automated lamination process for a 12-layer PCB at WELLER's advanced manufacturing facility, ensuring uniform layer bonding
High-precision 12-layer multilayer PCB manufactured by WELLER's expert engineering team for industrial control applications
Automated lamination process for a 12-layer PCB at WELLER's advanced manufacturing facility, ensuring uniform layer bonding

Multilayer Circuit Board Manufacturing

Core Features

High-speed Laminate

Panasonic Megtron 6

High layers

16L

Mixed Impedances

Differential tolerance: +/-8%

Quality Standards

IPC 6012D & IPC 600J CLASS 3

Consulting

+86 755 2828 2776

Business Hours (Mon.-Sat.)

9:00 - 18:00

Key Specifications & Technical Parameters

This is a 16L High-frequency multi-layer PCB manufactured with Panasonic Megtron 6: low Dk/Df, ultra-low signal loss, mixed impedance control (±5% for single and ±8% for differentiate), 1/3 oz in out-layer–2oz copper inner layer, halogen free+RoHS compliant. Ideal for 5G, radar, and high-speed digital applications.

Basic Features

Layers

16L

Tg

185 (DSC)

Surface finishing

ENIG: IPC-4552

Typical Value

Core

R-5785(GN)

Prepreg

R-5670

Thickness

3.2+/-0.32 mm

Selection Reference

Out layer copper

1/3 oz

Inner layer copper

2 oz

Aspect ratio

19:1

Critical Value

Back drill

10 Different back drill depth

Differential impedance

120 +/-8% ohm

Single impedance:

50 +/- 5% ohm

Electrical Performance

Dielectric Constant

( Dk )

3.71 @ 1GHz
3.61 @ 10GHz

Dissipation Factor
( Df )

0.002@ 1GHz
0.004@ 10GHz

Surface Resistivity
MΩ

1 x 108

Quality Specification

Cosmetic checking

IPC 6012D & IPC 600J CLASS 3

RoHS Status

Yes

REACH Status

Yes

Quality Assurance

Prior to production, every multilayer PCB design undergoes rigorous DFM verification using Genesis 2000, detecting potential manufacturing issues early. Combined with 100% electrical testing, AOI, and microsection analysis per IPC Class 3 standards, we guarantee zero defects for mission-critical aerospace, medical, and automotive applications.

RoHS

UL

REACH

IPC 6012D & IPC 600J CLASS 3

First Pass Yield
0 %
Fast Delivery
0 h
Partner Customers
0 +
Years of Industry Experience
0 +

Product Details

Discover the technical features, manufacturing processes, and performance advantages of our muti-layer PCB products.

Product Overview

Developed by experienced engineers, our High-Performance Heterogeneous Computing Server PCBs integrate advanced technical features and precision manufacturing processes. Every design undergoes rigorous DFM verification using Genesis 2000 and impedance simulation with Polar 9000, ensuring signal integrity and reliability. The result: superior performance advantages for demanding data center and AI workloads.

Core Advantages

Technical Features

We use our self-developed, customized production process, strictly controlling every step from raw material inspection to finished product inspection and testing to ensure stable and reliable printed circuit board quality.

1
DFM review

Senior engineers perform DFM checks using Genesis 2000 and Polar Si9000e.

2
Base material selection+CAM files generating

High-quality base material and copper foil selection, meantime optimization and compensation of production data

3
Inner layer fabrication

Photolithography, etching, and AOI inspection

4
Lamination

Strictly follow the layer stackup structure confirmed by the customer.

5
Drilling and plating

Precision drilling, strictly controlling hole wall roughness to ensure sufficient plating.

6
Outer layer fabrication

Photolithography, etching, plating and AOI inspection

7
Surface finishing

No subcontracting; all processes are performed in-house and comply with IPC-4552.

8
CNC and E-test

High-precision CNC routing and 100% electrical testing, differential pairs impedance and single end impedance testing.

Rigorous DFM analysis, premium material selection, and scientifically controlled processes ensure our PCBs deliver exceptional electrical performance and mechanical stability, excelling in the most demanding applications.

Excellent Electrical Performance

Excellent Megtron 6 material suport: Low dielectric loss, high insulation resistance, and stable electrical parameters ensure signal transmission integrity and reliability

Outstanding Reliability

Rigorous reliability testing—including thermal shock, humidity, vibration, and both differential and single-ended impedance verification—ensures long-term operational stability under the most demanding conditions.

Precision Manufacturing Process

Backed by a team of expert engineers and skilled technicians, our cutting-edge production equipment and strict quality systems deliver PCBs that consistently meet and exceed high-standard requirements.

Application Areas

Leveraging advanced manufacturing processes and stringent quality control, our 16-layer Panasonic Megtron 6 high-speed PCBs deliver ultra-low signal loss (Df 0.002-0.004 @ 10GHz) and stable dielectric performance (Dk 3.4-3.7) across mission-critical applications—ensuring reliable data transmission up to 25 Gbps and beyond.

5G Communication Infrastructure

High-frequency PCBs for 5G base stations (AAU/RRU), millimeter-wave antennas, and RF front-ends requiring low insertion loss and stable Dk at mmWave frequencies.

low insertion loss

stable Dk

mmWave frequencies

Data Centers & High-Speed Servers

16-layer server motherboards and 400G/800G optical module PCBs supporting PCIe 5.0/6.0 and 56G PAM4 signaling with ±8% differential impedance control.

High-voltage

Thermal-stable

Shock-resistant

Automotive ADAS & Radar Systems

77GHz/79GHz millimeter-wave radar PCBs for advanced driver-assistance systems, featuring exceptional CAF resistance and thermal reliability for harsh automotive environments.

millimeter-wave radar

CAF resistance

Thermal reliability

Aerospace & Defense Electronics

High-reliability circuit boards for satellite communication, avionics, and radar systems requiring extended temperature range (-55°C to +125°C) and military-grade durability.

Satellite communication

Avionics

Radar systems

High-Performance Computing (HPC)

GPU accelerator cards and AI server motherboards with 16-layer Megtron 6 construction, enabling high-speed interconnects for NVIDIA/AMD computing platforms.

GPU accelerator

High-speed interconnects

Sterilizabl

Advanced Networking Equipment

Core routers, high-speed switches, and OTN transport equipment requiring ultra-low loss materials for long backplane channels and 100G/400G Ethernet applications.

Routers

High-speed switches

OTN transport

Project Story

A client in the aerospace sector designed two sister boards with similar circuit architectures. However, due to the involvement of different engineers during fabrication, significant discrepancies in signal feedback were observed during on-site application. Upon investigation, our engineering team identified that the root cause was inconsistent stackup configurations between the two designs. After redesigning both boards with identical stackups and refabricating them, the signal feedback showed no significant differences between the two sister boards.

Quality Standards
IPC Class 0
Different back drill depth
0
High layer
0

Networking, and wireless applications

Requiring high-speed, ultra-low loss circuit materials.

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